News: Produktion related to Chalmers University of TechnologyFri, 30 Nov 2018 12:32:48 +0100,-Early-Stage-Modeling-and-Assessment-Support.aspx,-Early-Stage-Modeling-and-Assessment-Support.aspxPlatform Design for Producibility, Early-Stage Modeling and Assessment Support<p><b>Jonas Landahl, PhD student at the division of Product Development IMS, defends his doctoral thesis on December 11.  Below the popular science description. For more information, please see links below.</b></p><strong> </strong><span style="background-color:initial"><strong>Platform Design for Producibility</strong></span><div><strong>Early-Stage Modeling and Assessment Support</strong></div> <div><br /></div> <div>In the near future, a variety* of products can be designed and prepared for production more efficiently than today. Such a future state is possible by creating a backup structure of neatly packaged design and production information in which future product ideas can be included to be quickly compared for their value. Perhaps you’ve once identified a problem that you’ve used your imagination to solve by outlining a design solution? It’s quite demanding to go from idea to physical solution. Even professional engineers struggle to include every imaginable aspect of a design. Luckily, design engineers have plenty of tools that can help them detail the ideal performance of a product. The problem is that designing the performance of a product is not enough to make the physical product behave as intended. Good performance on paper is quite often achieved at the expense of bad production, poor product quality and dissatisfied customers. So the design must be modified when the product is near its final completion, which often results in mediocre performance, mediocre production and mediocre product quality, as well as a broken budget. Shouldn’t engineers know better and include production aspects earlier so that they can carry out both good design and production? Well, to be fair, engineers today don’t have the supportive tools necessary to include production aspects early on while simultaneously designing a variety of product concepts. This research has therefore focused on the interplay of products and production systems to present new knowledge in the form of theoretical models, engineering methods and a practical tool that enables the creation of a backup structure of neatly packaged design and production information to be reused in and adapted for new design problems. Some future challenges are identified and need to be addressed before a variety of products can be designed and prepared for production more efficiently than in current industrial practice. To know more about this, you are more than welcome to acquaint yourself with the content of this thesis.</div> <div> </div> <div>* Why variety? Well, because the likelihood that a product variant among a variety can meet the needs of any given customer is higher than for a single product, manufacturers can increase market share and become more profitable by offering variety.</div> <div><br /></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the thesis​</a></div> <div><a href="/en/staff/Pages/jonas-landahl.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />More about Jonas Landahl​</a></div> <div><br /></div> <div><div><strong>Public defence</strong></div> <div>2018-12-11 10:00</div> <div>Virtual Development Laboratory</div> <div>Opponent: Prof. Niels Henrik Mortensen, Department of Mechanical Engineering, Technical University of Denmark, Lyngby, Denmark​</div></div> <div><br /></div>Fri, 30 Nov 2018 12:00:00 +0100 start for Autumn School<p><b>​The first edition of the Autumn School got a successful start. 30 participants from academia and industry gathered for a week at Chalmers with a combination of lectures, industrial tours and project.  ​</b></p>​<img src="/SiteCollectionImages/Centrum/CAM2/People/porträtt-sofia-abdul-mattias.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px 15px" /><br /><br /><span style="background-color:initial">- </span><span style="background-color:initial">The idea behind the CAM<sup>2</sup> Autumn School is to provide possibilities for participants for hands-on experience<br />of different powder, says <strong>Eduard Hryha</strong>, director of Centre for Additive Manufacture – Metal, </span>CAM<span style="font-size:10.5px;line-height:0;position:relative;vertical-align:baseline;top:-0.5em">2</span><span style="background-color:initial">.</span><div><br /></div> <div>The main focus lays on powder bed metal additive manufacturing technologies, covering hardware design, powder properties, material properties and post-processing. At Chalmers the participants tried Laser Power Bed Fusion (LPBF), which is focused on design, manufacturing and evaluating an AM-part. They also got to test Direct Energy Deposition, Electron Beam Melting (EBM) and Binder Jetting during the visits at Arcam Academy, Digital Metal/Höganäs and Production Technology Center at University West.</div> <div><br /></div> <div><strong>Sofia Petterson</strong>, Volvo Group, was very pleased with the Autumn School.</div> <div>-<span style="white-space:pre"> </span>It was a good mixture between different lectures and company visits, for example Arcam where they showed their products and gave us a introduction of Electron Beam Melting. Going through all of these technologies, I got a better understanding of the pros and cons of them and where to use them, Sofia Petterson concludes.</div> <div><br /></div> <div>The course also included guest lectures. <strong>Abdul Shaafi Shaikh</strong>, EOS Finland, talked about Direct Metal Laser Sintering:</div> <div>-<span style="white-space:pre"> </span>I hope to leave the participants with a better understanding of the growing possibilities of using metallic materials for additive manufacturing.</div> <div><br /></div> <div><strong>Mattias Fager</strong>, Arcam, also guest lecturer, stressed the fact on how mature the EBM process is and a commodity concerning titanium inplants. </div> <div><br /></div> <div>-<span style="white-space:pre"> </span>We will continue with this approach during the coming five years, looking at the whole manufacturing chain through different themes each year, says Eduard Hryha.</div> <div><br /></div> <div><img src="/SiteCollectionImages/Centrum/CAM2/People/eduard-hryha_750x340.jpg" alt="" style="margin:5px;width:680px;height:294px" /><br /><br /></div> <div>Director Eduard Hryha, <span style="background-color:initial">CAM</span><span style="background-color:initial;font-size:10.5px;line-height:0;position:relative;vertical-align:baseline;top:-0.5em">2</span><span style="background-color:initial">. Pictures above, top-down: Sofia Petterson,Volvo Group,  Abdul Shaafi Shaihk, EOS Finland Oy and Mattias Fager, Arcam.</span></div> <div><br /><br /></div> <div><a href="/en/centres/cam2/education/Pages/Autumn-School-2018.aspx" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Read more about the course</a> </div> <div><br /></div> <div><strong>Interviews with director, participant and guest lecturers</strong></div> <div><a href="" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Eduard Hryha</a> </div> <div><a href="" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Sofia Petterson</a></div> <div><a href="" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Abdul Shaafi Shaikh</a></div> <div><span style="background-color:initial"><a href="" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Mattias Fager</a></span><br /></div> <div><br /></div> <div><br /></div> <div><em>Text, photo and film: Carina Schultz</em></div> <div><br /></div> Fri, 23 Nov 2018 00:00:00 +0100 characterisation for crash modelling of composites<p><b>​​Thomas Bru, industrial PhD student (RISE SICOMP) at the division of Material and Computational Mechanics IMS, defends his doctoral thesis on November 30. Below the popular science description. For more information, please see links below.</b></p>​<span style="background-color:initial"><span style="font-weight:700">Popular science description</span></span><div><br /></div> <div>In 2015, the transport sector contributed to nearly 30% of the total EU-28 greenhouse gas emissions. The figure decreases to 21% if international aviation and maritime emissions are excluded. The transport industry must therefore find solutions to reduce its impact on climate change.</div> <div><br /></div> <div>A promising method to reduce the weight of vehicles and therefore to their CO2 emissions is to introduce components made of lightweight composite materials, in particular carbon fibre reinforced plastics. On medium size cars, weight savings as high as 35% can be achieved by replacing steel structures with structures made of composite materials, and so without any loss in mechanical performances (strength and stiffness). In addition, it has been shown that composites structures can potentially absorb more energy than metallic structures in crash situations. Higher energy absorption in crash yields higher safety of the occupants thanks to reduced deceleration loads.</div> <div><br /></div> <div>Unfortunately, reliable simulation of the crash behaviour of composite structure has been identified as one the bottle necks for the introduction of composite materials in cars. With the aim of increasing the level of confidence in crash simulations, physical tests must be carried out in order to 1) extract relevant material properties to input to the simulation tools and to 2) validate the predictions of the numerical crash simulations.</div> <div><br /></div> <div>In this work, a simple test method is developed to experimentally characterise the crushing behaviour of composites. The experimental results are compared the simulation results obtained from a project conducted in parallel to this thesis. The aim of the simulations is to pre-emptively predict the crushing behaviour of composite structures in order to optimise their design in terms of energy absorption and to reduce the number of physical tests which are associated with high costs. In addition, experimental methods are developed with the aim of extracting material parameters required as input to material models in simulation codes. It is important to carefully measure the mechanical response of composite materials under shear forces (shear forces are pairs of equal and opposing forces acting on opposite sides of an object, like the forces created when using a pair of scissors). Therefore, a methodology is proposed to characterise the shear response of composite materials and to calibrate crash models for composites from the measured shear response.</div> <div><br /></div> <div><span style="font-weight:700">Links:</span></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" /></a><a href=""><span>R</span>ead the thesis </a></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />LinkedIn Thomas Bru</a></div> <div><br /></div> <div><div><strong>Dissertation</strong></div> <div>2018-11-30 10:00</div> <div>VDL, Tvärgata 4C, Chalmers</div> <div>Opponent: Prof. Ivana Partridge, University of Bristol, UK</div></div> <div><br /></div> ​Tue, 20 Nov 2018 00:00:00 +0100 collaboration on multifunctional materials<p><b>​Chalmers has received a substantial boost in the field of multifunctional materials and technologies focusing on the aviation industry. Dr. Peter Linde, Research Engineer at Airbus, one of the world’s largest aircraft manufacturers, has taken up the position of Adjunct Professor in the Department of Industrial and Materials Science. A collaboration that started with a long walk to a remote hotel in Toulouse in 2008.</b></p>​<img src="/SiteCollectionImages/Institutioner/IMS/MoB/Peter-Linde_02_500x750_foto%20Carina%20Schultz.png" class="chalmersPosition-FloatLeft" alt="Portrait Peter Linde" style="margin:5px 20px;width:225px;height:312px" /><br /><span style="background-color:initial">During their long walk to the hotel, Peter Linde and <a href="/en/Staff/Pages/leifas.aspx">Leif Asp</a>, Professor of <a href="/en/departments/ims/research/mocm/Pages/Lightweight-materials-and-structures.aspx">Lightweight Composite Materials and Structures</a>, realised that they shared many questions regarding research into lightweight materials. After nearly 10 years of working together on a number of projects, Asp’s wish for more in-depth collaboration with Airbus has now been realised as Linde took up the part-time (20%) position of Adjunct Professor at Chalmers in September. He is based in the Division of Material and Computational Mechanics.  </span><div><span style="background-color:initial">
At <a href="">Airbus Operations GmbH in Hamburg </a>Linde is currently working as an Airframe Architecture and Integration Research Engineer. His long experience of research into materials and composites has made him particularly familiar with the many challenges of this field within the Airbus group – which will be a major asset for Chalmers.</span></div> <div><br /></div> <div><em>Picture above: Peter Linde, who has recently taken up the position of Adjunct Professor in the Department of Industrial and Materials Science. His impressive CV includes studies at ETH Zurich, Stanford, the University of California, Los Angeles (focusing on industrial collaboration in aviation), and the University of California, Berkeley (pioneers in finite element methods). </em></div> <div><span style="background-color:initial"></span><div><br /><span style="background-color:initial"></span><div><strong>
World-leading research into structural batteries</strong> 
</div> <div>The agreement has taken time to prepare because the professorship must be relevant to Chalmers while also adding value to Airbus. Linde says that one absolutely crucial reason for the collaboration is the cutting-edge research being conducted by Leif Asp’s research team together with colleagues at KTH Royal Institute of Technology within the field of multifunctional composites for energy storage.
</div> <div>“Yes, it’s true that we’re world-leading in the area of <a href="/en/departments/ims/news/Pages/carbon-fibre-can-store-energy.aspx">structural batteries​</a>. In preparation for the agreement, Airbus conducted a Technology Watch in which the potential in our research was identified. It chimes with one of Airbus’ own strategic research fields: integrated energy storage. Airbus saw the potential and has therefore chosen to enter into an agreement with us,” Asp says.</div> <div><br /></div> <div><strong>
Request for broader collaboration with Chalmers
</strong></div> <div>Now that this agreement has been secured, Leif Asp hopes that Chalmers will gain a much broader interface with Airbus. Asp believes that there will be more joint projects on composites in future, but he would also like to see the research collaboration broadened. There are many research fields at Chalmers that are of interest to Airbus. 
</div> <div>“One of Peter Linde’s key talents is his ability to see possible collaborations and create networks that drive innovation in industry. In short, he is skilled at technology, politics and making things happen,” Asp explains.</div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/IMS/MoB/EFANX_viewpoint-2-HD_BSJ_20180201.jpeg" alt="Environmentally Friendly Aircraft E-Fan-X " style="margin:5px;width:680px;height:471px" /><br /><br /></div> <div><em>The title of his installation lecture was “Emerging Materials and Technologies for Multifunctional Application in Environmentally Friendly Aircraft”. E-Fan-X (depicted) is the second-generation of research aircraft within the Airbus group in which electric propulsion is being tested. E-Fan-X is a modified BAE 146 with four engines, one of which is electric. The energy for the propulsion is a hybrid-based system with a gas turbine and battery. Its maiden flight is planned for 2019. Its predecessor, the E-Fan, was a two-seater with two electric engines and energy storage in batteries. Its maiden flight took place in 2014. Photo: Airbus</em><br /><br /></div> <div><br /></div> <div><strong>
Lighter planes achieve environmental gains
</strong></div> <div>Peter Linde devotes most of his time to his work as Topic Manager of the EU project <a href="/en/projects/Pages/Structural-pOweR-CompositEs-foR-futurE-civil-aiRcraft-QSORCERERQ.aspx">SORCERER,</a> in which Chalmers is one of four partners.
</div> <div>“The project aims to develop a lightweight composite with intrinsic electrical energy storage capability, intended for future electric and hybrid-electric aircraft. The background to the project is the need for more environmentally friendly lightweight aircraft, of which the weight can be reduced by integrating batteries in structures, cabins and systems.
</div> <div>“Via Airbus’ involvement in the Clean Sky​ project, I will also gain the opportunity to meet new collaboration partners for Chalmers and Airbus,” says Linde, who hopes that he will have time for this on the 3–4 occasions per year that he will be on site in Gothenburg.</div> <div><br /></div> <div><strong>

Degree projects focusing on thin layers</strong></div> <div>Other interesting and closely related research fields mentioned by Linde are graphene and additive manufacturing for weight reduction and multifunctionality for components. Initially, however, he wants to dig deeper into the field of composites made of thin layers. Linde continues, </div> <div>“Together with Leif Asp and <a href="/en/Staff/Pages/martin-fagerstrom.aspx">Martin Fagerström</a>, I will prepare a number of degree projects. We have also started to supervise a doctoral student together, and we might lecture for the Master’s students in the latter part of their programmes.<span style="background-color:initial">”

</span></div> <div><span style="background-color:initial"><strong><br /></strong></span></div> <div><span style="background-color:initial"><strong>​Always a st</strong></span><span style="background-color:initial"><strong>udent
</strong></span></div> <div>When the news of the professorship was made public, many people in Peter Linde’s extensive contact network got in touch. One person who has already congratulated him is Professor <a href="">Stephen W. Tsai </a>at Stanford, a living legend in the field of composite materials, with whom Linde has had an innovative exchange in recent years.</div> <div>
“I have also heard from my old Professor <a href="">Hugo Bachmann​</a> at ETH Zurich, who congratulated me on gaining such a fine position at such a reputable seat of learning,” Linde laughs and continues, 
</div> <div>“This feels great! Above all as Adjunct Professor, I will be able to devote myself to my major interests: building networks and satisfying my curiosity. I regard myself as always being a student,” Linde concludes.</div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/IMS/MoB/Installation-adj-prof-Peter-Linde_20180904_13_750x477.png" alt="Peter Linde lecturing" style="margin:5px;width:679px;height:424px" /><br /><em><br /></em></div> <div><em>In his installation lecture, Dr. Peter Linde provided a short recap of Airbus’ history and technological successes. One example was the sales success of the Airbus A320, which vastly surpassed its sales target of around 300 planes and reached a total of 8,000. To conclude, he presented his thoughts on the future development of new materials, such as multifunctional composites for energy storage. Photo: Carina Schultz</em></div> <div><i><br /></i></div> <div><em></em><p style="margin-bottom:10px"><a href="" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />See more pictures from the event</a></p> <p style="margin-bottom:10px"><a href="/sv/institutioner/ims/kalendarium/Sidor/Peter-Linde.aspx" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Read more about the lecture</a></p> <p style="margin-bottom:10px"></p> <p class="chalmersElement-P"><a href="/en/departments/ims/news/Pages/carbon-fibre-can-store-energy.aspx" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />Carbon fibre can store energy in the body of a vehicle</a>​</p> <p style="margin-bottom:10px"><br /></p> <i></i></div></div></div> ​Thu, 15 Nov 2018 00:00:00 +0100 future of research in design processes - Cambrigde report<p><b>The MMEP SIG workshop on modelling and management of engineering processes gathered participants from universities across Europe, working with research on design processes. Professor Ola Isaksson and Massimo Panarotto (senior researcher) from Systems Engineering Design Research Group​, Chalmers University of Technology were on site and here is their report:</b></p>​“Industry see the value of improving the design process […] we see the same trend in production and software development, where industry is measuring the quality of the process to assess the quality of the outcome”.<div></div> <div>This is one of the reflections made by him and other participants of the <a href="">MMEP SIG workshop ​</a>held at the Engineering Design Centre at University of <span style="background-color:initial">Cambridge</span><span style="background-color:initial"> </span><span style="background-color:initial">the 5-6 November 2018 and </span><span style="background-color:initial">organized by the <a href="">Design Society​</a>.</span><span style="background-color:initial"> Chalmers was present with the </span><a href="/en/departments/ims/research/product-development/Pages/systems-engineering-design.aspx">Systems Engineering Design Research Group</a><span style="background-color:initial">. ​</span></div> <span></span><div></div> <div><span></span><div><div><span style="background-color:initial">There is a growing industrial interest to reduce development lead times and making better decisions - in a business environment that is bringing in new digital, electrical and autonomous technologies at a rapid pace. There is an increased interest on improving the design process to ensure the ability of making better products. </span></div> <div>Despite this interest, the introduction of new methods and tools into industrial design practice is traditionally slow despite them being demonstrated as having a good impact when used. This, and other challenges facing research into management of engineering design processes was discussed.</div> <div><br /></div> <div><strong><img src="/SiteCollectionImages/Centrum/Wingquist%20laboratory/notes-on-the-wall_700x598.jpg" alt="" style="margin:5px;width:680px;height:562px" /><br /><br /></strong><em>(Picture above) Issues and reflections were identified and clustered</em></div> <div><strong><br /></strong></div> <div><em></em><strong>What is the future (and the role) of academic research in design processes?</strong></div> <div></div> <div><span style="background-color:initial">The MMEP workshop focused on these issues, with the purpose of promoting a bi-directional interest from universities and industry to develop and introduce together new design methods and tools. As input to the workshop was the results from a workshop at Chalmers in September, where industrialists met academics to discuss the needs of the future. </span><br /></div> <div><span style="background-color:initial">Issues were listed and clustered in order to make some preliminary observations, which will be further refined and published in a report.</span></div> <div><br /></div> <div><strong>Some of the preliminary takeaways from the workshop are:</strong></div> <div>1.<span style="white-space:pre"> </span>The impact of the methods developed at universities is often as &quot;eye opener&quot;, rather than something directly implementable in an industrial environment.</div> <div>2.<span style="white-space:pre"> </span>In cases where implementation works, it is often the result of very long and close collaboration between a research team and a specific company and/or in close association with, for example, a spin-off company. </div> <div>3.<span style="white-space:pre"> </span>It is dangerous to expect doctoral students to produce scientific quality and at the same time to make an immediate industrial impact. This is difficult for PhD students who are at the same time learning on how to become independent researchers.   </div> <div>4.<span style="white-space:pre"> </span>Universities can use their more free role (compared to industry) to focus on longer-term issues, and to develop methods with better scalability and durability, driven by stronger theoretical foundations - where industry must inevitably take shortcuts in their daily business instead</div> <div><br /></div> <div>Outside work, there was also time for some sightseeing. </div> <div><img src="/SiteCollectionImages/Centrum/Wingquist%20laboratory/700x910_Christs-college.jpg" class="chalmersPosition-FloatLeft" alt="" style="margin:25px 5px;width:680px;height:777px" /><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial"><em>(Picture above) Professor Ola Isaksson in front of Christ’s college, where Charles Darwin studied.</em></span></div> <div><br /></div> <div><br /></div> <div><strong>For more info, contact:</strong></div> <div><br /></div> <div><a href="/en/staff/Pages/iola.aspx">Ola Isaksson</a></div> <div>Professor, Systems Engineering Design Research Group</div> <div>Dept. Industrial and Materials Science</div> <div><br /></div> <div><a href="/en/Staff/Pages/">Massimo Panarotto</a></div> <div>Senior Researcher, Systems Engineering Design Research Group</div> <div>Dept. Industrial and Materials Science</div> <div><br /></div></div></div> ​Fri, 09 Nov 2018 00:00:00 +0100 we miss the opportunity to reuse past knowledge and does it really matter<p><b>In his doctoral thesis,  Daniel Stenholm PhD student at the division of Production Development discusses different approaches to reuse of engineering knowledge.</b></p><h2 class="chalmersElement-H2"> <span>Reuse of Engineering Knowledge</span></h2> <div><em>Perspectives on Experience-Based Codified Knowledge in Incremental Product Development</em></div> <div> </div> <div><br /></div> <div> </div> <div><strong>Do we miss the opportunity to reuse past knowledge and does it really matter?</strong></div> <div> </div> <div><br /></div> <div> </div> <div>Do any of the following situations sound familiar? </div> <div><ol><li>You have been hearing about the baby boomer retirement for years and now it is on your doorstep or already going on. Senior managers and experts are retiring and it is challenging to fill their places. A lot of projects will be delayed or cancelled for lack of experienced employees. Some of what they know may perhaps be obsolete. But how much? And what parts? What knowledge can and should be passed along and reused by less experienced colleagues? <br /></li> <li>You have been hiring talented young engineers over the past few years, but they are… different. These Gen-Y individuals, or Millennials, are impatient to move up the organizational ladder and do not expect to spend twenty years in the same organization. They have some great new ideas, such as using social media to interact with colleagues. But how do you integrate them efficiently into the organizational culture while making sure that they apply existing organizational knowledge? <br /></li> <li>Your product development teams are scattered around the globe. It is great that someone in East Asia or the U.S. is working while your team members in Europe are asleep – and your electronic communication systems allow you to get really quick responses to a given specific problem. But how do you advance and promote individuals and teams from competence to expertise given that experts are so dispersed?<br /></li></ol></div> <div><br /></div> <div> </div> <div>All these scenarios have a common challenge: How can business-critical, experience-based knowledge of experts become valuable for an organization through efficient reuse of this knowledge over time? </div> <div><br /></div> <div> </div> <div>This thesis primarily focuses on dynamically capturing and reusing the knowledge that is the most critical for an organization and presents a practical approach to improve domain-specific knowledge flow over time. </div> <div>Moreover, the focus is about a particular subset of knowledge that has been built up from corporate-specific and mostly undocumented experience normally contained inside the heads of senior workers.  </div> <div><br /></div> <div> </div> <div>Not only capturing what you might call Know-what but also what the most valuable practitioners have learned about Know-how, along with the reason behind – Know-why. This expertise includes such skills as the ability to diagnose and anticipate problems and making swift and wise decisions and actions. Such knowledge has a major benefit to an organization and will become invaluable into the future, hence the need to transfer it to the next generation of engineers.</div> <div><br /></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the thesis </a></div> <div><a href=""><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Daniel Stenholm, LinkedIn </a></div> <div><a href="/en/departments/ims/research/product-development/Pages/default.aspx"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" />More about the division of Production Development at IMS </a></div> <div> </div> <div><br /></div> <div> </div> Text: Daniel Stenholm/Kate Larsson​​<div>Photo: <a href="">Robin Lundin​</a></div>Wed, 07 Nov 2018 00:00:00 +0100 from the EPIC workshop on space electric propulsion<p><b>​​ With focus on Electric Propulsion Technologies, the 2018 EPIC Workshop took place in Westminster, London this October. The workshop, now on its third year, gathered around 80 delegates from across Europe, mostly from companies and European space organizations, such as ESA. Massimo Panarotto, senior researcher from Systems Engineering Design Research Group​, Chalmers University of Technology was on site and here is his report:</b></p>​<span style="background-color:initial"><img src="/SiteCollectionImages/Centrum/Wingquist%20laboratory/Massimo_Panarotti_IMS_DSC02501_250x374.jpg" class="chalmersPosition-FloatRight" alt="" style="margin:5px 10px;width:170px;height:255px" />“<a href="">Electric propulsion</a> is a game changer”, this was the opening by Jose Gonzalez del Amo (European Space </span><span style="background-color:initial"><br />Agency – ESA) at the third <a href=""><span>EPIC</span> workshop</a>, held in London from the 15th to the 17th of October 2018. </span><div><br /></div> <div>For going to mars and beyond, we need more efficient means of transportation in space. For example, chemical propulsion (used to propel the space shuttle in 1969) is too costly and has the big disadvantage to consume a lot of propellant to reach long distances. Electric propulsion represents a promising alternative, since we can use much less propellant. Furthermore, we can make use of the only energy source available in the solar system: the sun.    </div> <div><br /></div> <div>At the same time, the space industry is in the middle of a transition. New actors such as <a href="">OneWeb</a> are planning to launch thousands of satellites around the earth to provide low cost - yet fast - internet to the whole world. Electric propulsion is appealing for these business markets as well, since it can reduce costs tremendously.</div> <div><br /></div> <div>Despite these good premises, electric propulsion still needs innovation and development to clearly become a competitive option for the space industry. EPIC (Electric Propulsion Innovation and Competitiveness) has the objective to foster such innovations.   </div> <div><br /></div> <div>The EPIC Workshop started by giving updates from the projects funded by the European Commission through the <a href="">Horizon 2020 Space Strategic Research Cluster</a>. One of these is the <a href="">CHEOPS project</a>, where the <a href="/en/departments/ims/research/product-development/Pages/systems-engineering-design.aspx">Systems Engineering Design Research Group</a> at Chalmers is actively involved, supporting nine industrial partners to analyze the cost and value of alternative architectures and technologies for electric propulsion.   </div> <div><br /></div> <div><img src="/SiteCollectionImages/Centrum/Wingquist%20laboratory/cheops_slied_750x340.png" alt="" style="margin:5px;width:680px;height:312px" /><br /><br /></div> <div><a href="">Idris Habbassi</a> (photo above), <a href="">Safran Aircraft Engines</a> and project leader in CHEOPS, presenting the results of the project</div> <div>The workshop followed by very interesting panel discussions, focused on two recurring ‘hot topics’ for the electric propulsion community: </div> <div>1) electric propulsion technologies for small satellites and new markets and </div> <div>2) new strategies for electric propulsion qualification. </div> <div>The last day of the workshop focused on a number of exiting technical presentations.</div> <div><br /></div> <div>The next EPIC workshop will be in 2019 in Noordwijk (The Netherlands), one of the ‘homes’ of the <a href="">European Space Agency (ESA)​</a>. </div> <div><br /></div> <div><span style="font-weight:700">FACTS CHEOPS</span></div> <div>The <em><strong>CHEOPS (Consortium for Hall Effect Orbital Propulsion System) </strong></em>project proposes to develop three different Hall Effect Thruster (HET) Electric Propulsion Systems (EPS), each with specific requirements leading to specific improvements at system and subsystem levels, in order to serve different application fields or orbits.</div> <div><br /></div> <div><span></span><span></span><div><span style="font-weight:700">Chalmers role in CHEOPS:</span></div> <div><span style="background-color:initial">Chalmers is involved in Cheops in Work Package 2 (WP2- “Strategies for value creation and cost reduction”) and targets objectives #5 and #6 of CHEOPS </span><br /></div> <div><ul><li>Such objectives state the target to reduce cost of solutions by at least 30% compared to existing solution. <br /></li> <li>However, all technologies and concepts to be demonstrated in CHEOPS are also intended to provide performance enhancements, and in several cases also new functionalities. <br /></li> <li>The comparison with existing concepts is therefore not straightforward, since CHEOPS is not only a cost reduction initiative. <br /></li> <li>The need for a cost and value modelling strategy that acknowledges the enhancements and changes of the produ<span style="background-color:initial">ct compared to current generation technologies is therefore clear.​</span></li></ul></div></div> <div><br /></div> <div><a href="" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />More about the CHEOPS project</a></div> <div><br /></div> <div><span style="font-weight:700">For more info, contact:</span></div> <div><span style="background-color:initial"><a href="/en/Staff/Pages/massimo-panarotto.aspx">Massimo Panarotto</a></span><br /></div> <div><a href="">​</a><br /></div> <div>Senior Researcher, Systems Engineering Design Research Group</div> <div><span>Dept. Industrial and Materials Science <span style="display:inline-block"></span></span><br /></div> <div>Theme leader <a href="/en/centres/wingquist/research/research-themes/Pages/platform-based-development.aspx">Product Development 4.0</a> at Wingquist Laboratory</div> <div>​<br /></div> ​Fri, 19 Oct 2018 15:30:00 +0200 in on gear teeth<p><b>​Congratulations to our new doctor Dinesh Mallipeddi who today successfully held his doctoral defence with the title: Surface Integrity of Gear Materials.</b></p><div>Gears are an integral part of modern life, necessary for both production and transport. The <span style="background-color:initial">compact and efficient transmission offered by gears made their usage predominant compared </span><span style="background-color:initial">to other drives. Recent development have increased both the efficiency and durability of gears, </span><span style="background-color:initial">especially in the automotive industry. Still, enhanced performance is required due to global </span><span style="background-color:initial">demands on sustainability and energy consumption. Actually, one billion cars are rolling on the </span><span style="background-color:initial">streets around the globe, without counting trucks and busses. This means even small increase </span><span style="background-color:initial">in efficiency could significantly reduce the energy usage.​</span><span style="background-color:initial">​</span></div> <div><span style="background-color:initial"><br /></span></div> <div><span style="background-color:initial">A gearbox with gears of different sizes is part of a vehicle transmission system and plays an important part in transmitting the engine power to the wheels. The efficient energy transmission highly relies on the performance of gears. Together, the mesh efficiency and durability determines the performance of gears.</span><div><br /></div> <div>The hard finishing of gear surfaces can be done by different methods; grinding, honing and superfinishing etc., and produces unique characteristics in terms of surface roughness, microstructure and residual stresses. These characteristics of the teeth affect the gear performance. A running-in process is known to alter them along with the surface chemistry and it pre-sets the gear for service. By understanding the initial running-in it is possible to improve the performance of gears. </div> <div><br /></div> <div>– My study addressed the influence of running-in on the evolution of surface characteristics generated by the mentioned methods, and how they developed further during initial usage, represented by efficiency test. The <span style="background-color:initial">surface roughness was found to be the most influential factor among all the </span><span style="background-color:initial">characteristics. </span><span style="background-color:initial">The findings that I have presented are expected to contribute to the technical and industrial aims for optimized gear preparation.</span></div> <div><br /></div> <div>The research was conducted together with AB Volvo under the supervision of <a href="/en/Staff/Pages/mats-norell.aspx" target="_blank" title="Link to profile page of Mats Norell">Senior Lecturer​ Mats Norell</a> and <a href="/en/Staff/Pages/lars-nyborg.aspx" target="_blank" title="Link to profile page of Lars Nyborg">Professor Lars Nyborg </a>at Chalmers department of Industrial and Materials Science.</div> <div><br /></div> <div><a href="" target="_blank" title="Link to doctoral thesis"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" />Read the full publication here.</a></div></div>Thu, 04 Oct 2018 00:00:00 +0200 welding methods reduces CO2 emissions of airplanes<p><b>​Aviation accounts for around 2 % of the world&#39;s total CO2 emissions, but the proportion is expected to rise. In pursuit of reducing emissions, researchers from Chalmers cooperate with GKN Aerospace and University West to find new manufacturing solutions for engines. A new doctoral dissertation presents results from studies of titanium alloys and mechanical properties of various welding processes.</b></p>​<span style="background-color:initial">The aviation industry is looking for solutions that reduce carbon dioxide (CO2) emissions and reducing the weight of the aircraft is essential for success. An airplane engine weighs a lot, but through new manufacturing methods it can decrease.</span><div><br /><span style="background-color:initial"></span><div>One way to reduce weight is to weld several small subcomponents into a larger component instead of casting it into one whole piece. In a new doctoral thesis by Sakari Tolvanen, he presents studies that have compared the mechanical properties of welds produced with different welding processes. The aim is to gain a better understanding of how and why occasional defects occur and how the defects influence the mechanical properties of the welds.</div> <div><br /></div> <div>One might imagine that welding is an old technique that has left the lab stage for a long time, but as the requirements change, manufacturing technologies need to keep up with the change. Manufacturing technologies of large aeroengine components are developed to improve material utilization, reduce cost and allow design flexibility. Welding has an important role in the development as it allows joining multiple subcomponents to produce one large structure. This approach produces less scrap material and enables design of lighter and more functional components, which in turn, results in reduced environmental impact in both production phase and the use phase of the engine.  </div> <div><br /><img src="/SiteCollectionImages/Institutioner/IMS/Material%20och%20tillverkning/Welding-processes-comparison.jpg" class="chalmersPosition-FloatLeft" alt="" style="margin:5px" /><em>Titanium alloys are readily joined with several common fusion welding processes such as tungsten inert gas welding (TIG), plasma arc welding (PAW), electron beam welding (EBW), and laser beam welding (EBW). Fusion welding processes can be characterized generally by the heat-source intensity. This figure illustrates the different characteristics of the aforementioned welding processes and how they affect the penetration. </em></div> <div><br /><br /><br /></div> <div><br /></div> <div>Sakari Tolvanen has studied what happens when two metal components made of titanium alloys are welded together. Titanium alloys are widely used in aviation industry mainly because of their superior combination of high strength and low weight. Sakari has among other things analyzed how the chemical composition of the alloy affects the result of welding.</div> <div><br /></div> <div>“The results from my studies give a better understanding of the factors that affect the microstructure and what in it leads to defects. This makes it possible to choose and optimize not only the welding process but also the base material”, says Sakari Tolvanen. “The combination of which process and material you use determines how good the result is.”</div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/IMS/Material%20och%20tillverkning/Fracture%20surface%20of%20a%20fatigue%20specimen_400pxl.jpg" alt="Fracture surface of a fatigue specimen" class="chalmersPosition-FloatRight" style="margin:5px" /><br /><span></span><em>In aeroplanes, you do not want the welds to crack. By characterizing the topography of the fracture surface, information about the cause of crack initiation and fracture mechanisms can be revealed. Fatigue failure can be divided into different stages, i.e. crack initiation, crack propagation and final fracture. This figure shows a crack initiation at a pore, a relatively flat crack propagation area around the initiation and the final fracture surface. By learning the behaviour of cracks, they can be avoided.</em><br /></div> <div><br /></div> <div><br /></div> <div>In airplanes, titanium alloys can be found on parts for landing gear, internal components of wings, and engine components like the fan and compressor sections.</div> <div><br /></div> <div><strong>FACTS</strong></div> <div>Read more about the transport sector's CO2 emissions in the <a href="" title="Link to IPCC web page" target="_blank">IPCC climate assessment report from 2014</a>.</div> <div>The studies carried out by Sakari Tolvanen have taken place within the framework of a research project conducted by GKN Aerospace:</div> <div><a href="" title="Link to research project" target="_blank">Defect formation during welding and their effect on mechanical properties of Ti-6Al-4V and Ti-6Al-2Sn-4Zr-2Mo </a></div> <div>Read the full thesis here:</div> <div><a href="">Welding of Ti-6Al-4V: Influence of welding process and alloy composition on microstructure and properties</a></div> <div><br /></div> <div>Supervisors were <a href="/en/staff/Pages/uta-klement.aspx">Professor Uta Klement</a> from Chalmers University of Technology and Professor Robert Pederson from University West.</div> <div><br /></div></div> <div><br /></div> <div><em>Text: Nina Silow</em></div> <div><em>Images within the article: Sakari Tolvanen</em></div> ​Mon, 01 Oct 2018 00:00:00 +0200's-product-developer.aspx's-product-developer.aspxTough race for this year&#39;s product development master students<p><b>​ With a limited selection of styrofoam, rubber bands, gears and a lot of inventiveness, the new master students built racing vehicles for the traditional PD Classic Race.</b></p><div>​During a challenging week, the Product Development master students managed to build small vehicles for the traditional competition PD Classic, a race where the vehicles have to cope with a difficult track, including asphalt, ice, water and gravel. This year's competition was even and tough, but the judges Lars Almefelt, Kanishk Bhadani and Ali Davoodi could finally proclaim two winners. </div> <div><br /></div> <div>
In the &quot;Design and Innovation&quot; class, Team Purple Pearl, got an extra plus in the motivation for the robust construction, the protective hood over the electronics and fancy skulls as design elements.
</div> <div>Team Rally Ralf took home the prize in the &quot;Performance&quot; class, which with a classic, reduced design won thanks to even cut times in the races.

</div> <div><br /></div> <div>Competition officer and supervisor during the week was Luisa Zlatoidska, student at the second year on the Master's Program Product Development.</div> <br /><a href="" target="_blank">More pictures from the construction and competition</a><br /><br /><div>Text and photo: Carina Schultz</div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/IMS/Produktutveckling/PD-Classic_master_180907_040_750x476.png" alt="" style="margin:5px;width:680px;height:434px" /><br />Team Rally Ralf</div> <div><br /></div> <div><img src="/SiteCollectionImages/Institutioner/IMS/Produktutveckling/PD-Classic_master_180907_028_750x428.png" alt="" style="margin:5px;width:680px;height:386px" /><br />Team Purple Pearl.<br /><br /></div>Wed, 19 Sep 2018 14:00:00 +0200 for EU Affairs and Trade on visit at Chalmers<p><b>​In conjunction with the installation lecture on 4 September, Ann Linde, Minister for EU Affairs and Trade, visited the department for a brief presentation of the new cooperation with Airbus and the researchers at the Division of Material and Computational Mechanics.</b></p>​“I'm very proud that my cousin, Peter Linde, has been appointed adjunct professor at Chalmers. There are major societal challenges where research collaboration with industry is important. Since Sweden has the ambition to become the world's first fossil-free welfare state, it requires development in many areas. The research on lightweight materials and lower fuel consumption is an example.”<br /><br />What issues are relevant now, given the situation in the outside world?
<br /><br />&quot;The worst threat right now is whether we enter a trade war. Sweden is very dependent on exports and about half of our GDP come from exports. In addition, 70% of the export go to the EU's internal market, so when Britain leaves, it becomes an extremely difficult challenge for Sweden. For example, the UK is our largest exporting country for services. And cooperation between universities and industries will also be complicated.”

<br /><br />&quot;What I've heard about today has been incredibly exciting. I hope I get the opportunity to visit Chalmers again, Ann Linde concludes.<br /><br /><em>Text and photo: Carina Schultz</em><br />Thu, 06 Sep 2018 00:00:00 +0200 honorable appointed to CIRP Fellow<p><b>​Professor Rikard Söderberg has been appointed as Fellow of the International Academy of Production Engineering, CIRP. The selection is based on a long and rigorous process that guarantees the highest possible academic standard.</b></p>​<span style="background-color:initial">Recently, the members of <a href="">CIRP, the International Academy of Production Engineering</a>, gathered for a meeting in Japan. At the meeting, <a href="/en/staff/Pages/rikard-soderberg.aspx" title="Link to profile page ">Professor Rikard Söderberg</a>, Head of <a href="/en/departments/ims/Pages/default.aspx" title="Link to department">Department of Industrial and Materials Science</a> and Director of the <a href="/en/centres/wingquist/Pages/default.aspx">Wingquist Laboratory</a>, was appointed as a Fellow in the organization.</span><div><br /></div> <div>&quot;It feels extremely honorable to be nominated and elected as a Fellow in CIRP,&quot; says Rikard Söderberg. &quot;It is an acknowledgment of the research that I and my research team conduct in the field of geometry assurance and robust design.&quot;</div> <div><br /></div> <div>Rikard Söderberg is a professor in product and production development and with his research he focuses on minimizing the effect of geometric variation. It includes areas such as industrial design, visualization, robust design, statistical variation simulation, optimization, assembly modeling and analysis, measurement preparation and analysis of measurement data.</div> <div><br /></div> <div>CIRP is a world-leading organization in production engineering research and is at the forefront of design, optimization, control and handling of processes, machines and systems. More and more of the business's attention is focused on challenges such as sustainable production, the environmental impact of new technology and manufacturing aspects of globalization. The Academy has limited membership based on demonstrated excellence in research and has about 600 academic and industrial members from 50 industrialized countries. Fellows are internationally recognized scientists chosen to be members of CIRP for life.</div> <div><br /></div> <div>The nomination of Rikard Söderberg was supported by Professor Torsten Kjellberg of KTH, Professor Hoda ElMaraghy ​​of University of Windsor in Canada, Professor Luc Mathieu of École Normal Supérieure Paris-Saclay in France and Professor Eric Lutters of the University of Twente in the Netherlands.​</div> ​Wed, 05 Sep 2018 16:00:00 +0200 and Chalmers organize a conference on future transport<p><b>​Chalmers is hosting this year and will take place on September 11-13. Future transport is the theme, what happens more?</b></p>​<br /><strong>Who are gathered?</strong><br />It is the Volvo Group's academic partners, where Chalmers is one of five selected universities. The others are Penn State University in the United States, INSA Lyon in France and Mälardalen and Skövde universities in Sweden. Together with the representatives from AB Volvo, we become about 50 participants in total.<br /><br />Can you tell us about the 3-days programme?<br />The aim is to develop common research ideas on the theme of &quot;conversion to future transport&quot;. The focus is on new fuels, autonomous transport and digitalized production. One session is about developing ideas for new industrial student projects. In addition to workshops, there will also be study visits to AstaZero and the Volvo Bus Experience Center. On the third day we will meet with Chalmers initiative seminar on electric mobility.<br /><br /><strong>What does such cooperation mean for Chalmers?</strong><br />Chalmers has a strong tradition of cooperating with industry. In analyses that measure research collaboration with industry, such as CWTS Leiden's ranking, Chalmers is recurring among the top ten in the world. This conference is another concrete proof of how we connect researchers and students with industry needs to meet societal challenges. The projects include, for example, sustainable transport systems and road safety.<br /><br /><strong>What do you hope it will give the participants?</strong><br />We hope that the conference will strengthen the already good cooperation between the Volvo Group and their academic partners as well as inspire new research projects and student collaborations that can contribute to sustainable transport in the future.<br /><br /><strong>Chalmers has been collaborating on student projects with Penn State University for many years. Can you tell us more about it?</strong><br /><div>The projects are collaborative at BSc level between Chalmers, the Volvo Group and Penn State University. Volvo contributes to project proposals with questions they want help with, after which student groups consisting of three students from each college and a supervisor at each university will collaborate via Skype during spring term to handle the issues and propose solutions. Towards the end of the semester, students write a joint project report. The Volvo Group has so far contributed with funding so that the two previous student groups were able to visit each other and listen to project presentations at the end of spring. It is much appreciated.</div> <div><br /></div> <div><em>Text: Nina Silow</em></div> <div><em>Photo: Carina Schultz</em><br /></div>Sun, 02 Sep 2018 09:00:00 +0200 management is central to digitalised manufacturing<p><b>​Digitalisation in manufacturing industry has rapidly increased the expectations on production systems to be highly productive and resource efficient. Fulfilling these expectations depends on how well the machines in the production system function.</b></p><div><table class="chalmersTable-default" width="100%" cellspacing="0" style="font-size:1em"><tbody><tr class="chalmersTableEvenRow-default"><td class="chalmersTableEvenCol-default" rowspan="1" colspan="1" style="width:470px">​<span><br />So, successful maintenance management is central to the realisation of digitalised manufacturing. However, the practices of maintenance organisations in manufacturing companies are found to be well behind the needs of digitalised manufacturing. Mainly, industrial practices show non-factual maintenance decision-making, which is dangerous to the smooth functioning of production systems.  This is because maintenance is approached on a component-level by focusing only on maximising the availability of machines, instead of approaching from a system perspective which can maximise the productivity of the entire production system. Therefore, the purpose of this research work is to successfully transform the maintenance organisations from having a narrow focus to achieve a system perspective.<span style="display:inline-block"></span></span></td> <td class="chalmersTableOddCol-default" rowspan="1" colspan="1" style="text-align:right;width:200px">​<span><span><span><span style="display:inline-block"><span><span><span><span style="display:inline-block"><img src="/SiteCollectionImages/Institutioner/PPD/Profilbilder/bilder/Maheshwara%20Gopalakrishnan-1_resize.jpg" alt="Profile page" width="178" height="228" style="margin:5px" /><span style="display:inline-block"></span></span></span></span></span></span></span></span></span></td></tr> <tr class="chalmersTableOddRow-default"><td class="chalmersTableEvenCol-default" rowspan="1" colspan="1" style="width:470px">​</td> <td class="chalmersTableOddCol-default" rowspan="1" colspan="1" style="text-align:right;width:200px"><div style="text-align:left"><em><span>PhD student Maheshwaran​ on the importance of maintenance for  effective digitalised manufacturing.</span></em></div></td></tr></tbody></table> <h3 class="chalmersElement-H3"> From a narrow focus to a system perspective</h3></div> <div>A data-driven maintenance decision support framework was developed in the thesis, which provides guidelines for the maintenance organisations to transform from having a narrow focus to a system perspective. Currently, manufacturing companies are classifying the machines based on its criticality with the motive of prioritising their maintenance efforts. But, the criticality assessment tools are not used for maintenance prioritisation. Instead, experience-driven or operator-influenced prioritisation decisions are made. The criticality assessment is problematic as they are not data-driven, rarely updated and lack a clear goal. In order to solve this, a data-driven machine criticality assessment was developed as a solution. It uses real-time machine data and data analytics to provide factual and dynamical updating decision support with a clear goal of increasing productivity. By using the data-driven approach for maintenance, the real-time data and data analytics helps in enlarging maintenance scope to having a system perspective. Prioritising maintenance based on data-driven criticality assessment leads to better performance of the production system and to increase its productivity. </div> <div> </div> <h4 class="chalmersElement-H4">About Maheshwaran Gopalakrishnan</h4> <p class="chalmersElement-P">Maheshwaran Gopalakrishnan presents his <a href="">Ph.D. thesis, Data-Driven Decision Support for Maintenance Prioritisation - Connecting Maintenance to Productivity</a>, in VDL on the 31 of August. He has a background in Production engineering, which he obtained from his M.Sc. degree at KTH, Stockholm. <br /><br /><span><span><span style="display:inline-block">Maheshwaran feels that the field of maintenance management offers plenty of research opportunities, especially as it has got low attention in the global research community compared to other fields. As industries are still using traditional approaches for maintenance, the theory on maintenance is disjoint for industrial practice. This drives him to work in close collaboration with industries in order to close this gap. He currently conducts empirical research within smart maintenance for digitalised manufacturing. In addition to his focus on discrete manufacturing, he plans to expand the maintenance research to include other types of manufacturing and inter-disciplinary research.</span></span></span><br /></p> <span><span><span style="display:inline-block"><span><span><span style="display:inline-block"><span style="font-family:open sans"><span lang="EN-GB"><span><br />On his spare time Maheshwaran loves to travel and is an ardent fan of cricket.</span></span></span></span></span></span></span></span></span><span><span><span style="display:inline-block"><span><span><span style="display:inline-block"><span style="font-family:open sans"><span lang="EN-GB"><span>He has also been playing curling since 2016<span style="display:inline-block">.<br /></span></span></span></span></span></span></span></span></span></span><span><span><span style="display:inline-block"><span><span><span style="display:inline-block"><span style="font-family:open sans"><span lang="EN-GB"></span></span></span></span></span></span></span></span> <div><span><span><span style="display:inline-block"><span><span><span style="display:inline-block"><i style="font-family:open sans"><span lang="EN-GB"><span><span style="display:inline-block"><br /></span></span></span></i></span></span></span></span></span></span></div> <div><span><span><span style="display:inline-block"><span><span><span style="display:inline-block"><span style="font-family:open sans"><span lang="EN-GB"><span><span style="display:inline-block"><a href="/en/Staff/Pages/mahgop.aspx">Contact Maheshwaran<br /></a></span></span></span></span></span></span></span></span></span></span></div> <div><span><span><span style="display:inline-block"><span><span><span style="display:inline-block"><span style="font-family:open sans"><span lang="EN-GB"><span><span style="display:inline-block"><a href="/en/departments/ims/Pages/default.aspx">Department of Industrial and Materials Manufacturing</a><br /></span></span></span></span></span></span></span></span></span></span></div> <div><span><span><span style="display:inline-block"><span><span><span style="display:inline-block"><i style="font-family:open sans"><span lang="EN-GB"><span><span style="display:inline-block"><span id="ms-rterangecursor-end" style="display:inline-block"><br /></span></span></span></span></i></span></span></span></span></span></span></div> <div><span><span><span style="display:inline-block"><span><span><span style="display:inline-block"><i style="font-family:open sans"><span lang="EN-GB"><span><span style="display:inline-block"></span></span></span></i></span></span></span></span></span></span> </div>Sun, 26 Aug 2018 00:00:00 +0200​Standardization promotes better recycling of plastics<p><b>​ In Sweden, almost one million tonnes of plastic are used every year. The proportion of recycled plastic is fairly high compared with that in other EU-countries, but ambitions are high, particularly against the background of the new tough recycling demands which come into force in 2020. In order to make the cyclic process more effective, a joint language is required, a standard for the recycling of plastic. The Swedish Standards Institute, SIS, has accepted the challenge and Professor Antal Boldizar is a member of the expert group.</b></p>Plastics are complex and controversial materials from an environmental perspective. A broad range of plastic materials are used in the manufacturing industry, since they are relatively resource-efficient, design-friendly and light in weight, but there are disadvantages in that they are based on fossil-fuels and degrade very slowly, and garbage sorting at source is an important first step towards the achievement of a cyclic system in which plastics can be re-used for new purposes. <br /><br /><img src="/SiteCollectionImages/Institutioner/IMS/Konstruktionsmaterial/300x200-plastskrap.jpg" class="chalmersPosition-FloatLeft" alt="" style="margin:5px 10px" />Chalmers has a strong competence in this field, in for example Antal Boldizar, Professor in the Department of Industrial and <span></span>Materials Science, whose work focuses on environment-adapted polymeric structural materials.  He is leader of a Polymeric Materials and Composites research group devoted to the study of the relationships between the structure, processing and functional properties of polymeric materials, such as polymeric composites reinforced with cellulose fibres. The recycling of plastics and the use of bio-plastics are other strong fields. <br /><br /><strong>Sweden takes the lead in developing a new joint Standard </strong><br />Now that Sweden through SIS is taking a joint initiative with regard to the future sustainable use of plastics, Antal is one of the experts in the group which will work on the terminology and standardization of recycled plastics.<br />”I‘m looking forward to it.  It is an important field for both society and industry.  One can say that standardization is the industrial language”, says Antal, and continues: “there is a great need for a clear terminology.  Many new concepts are used indistinctly and the industry requires greater clarity with regard to terminology and standards.”<br /><img src="/SiteCollectionImages/Institutioner/IMS/Konstruktionsmaterial/Johan%20Dahlgren%20SIS.png" class="chalmersPosition-FloatRight" alt="" style="margin:5px 10px;width:169px;height:165px" /><br />Johan Dahlgren (to the right), the project leader at SIS, agrees.<br />”We are working to develop clearer definitions relating to plastics in a cyclic economy.  It is important that all the actors in the value-chain use the same terminology, in order for example to be able to compare and evaluate results.  A Standard can be seen as a joint solution of a recurrent problem.  It is in everyone’s interest to raise quality, to avoid misunderstanding and to avoid reinventing the wheel every time.” <br /><br /><strong>Many different perspectives are required</strong><br />Johan Dahlgren says further that a major task of the working group is to contribute to the future sustainable use of plastics. A key feature is the recycling of plastics, but bio-plastics are also an interesting field.<br />”Standardization is often applied research strongly linked to the work of academia. Unfortunately, universities and colleges are not always able to participate in the SIS committees because of the participation fees”, says Johan Dahlgren, ”but at the same time it is important that as many perspectives as possible are represented to ensure that the Standards are good. It is therefore valuable that Antal Boldizar is able to contribute with his knowledge and opinions from his research perspective.”        <br />   <br /><strong>Recycled plastic from electronic waste </strong><br />It normally takes between 18 months and three years to develop a Standard. The first step is to clarify the need for standardization in a given sector and that report is expected to be available by the end of 2019.   What questions are important now at the start?<br />”About 40 % of the plastics used in Sweden is now being recycled,” says Antal, “a large and readily available part of the recycled plastic in Sweden comes from industrial spillage, i.e. waste from the manufacturing process.  There is a good reason for this – the material has not been contaminated or aged.  It is in effect a new material with known properties easy to use in a manufacturing process.”<br />“But how much of the plastic recovered from old materials can be reused?” asks Antal and continues, ”a couple of years ago we had <a href="" target="_blank">a successful project </a>where Erik Stenvall, a doctoral student with us, studied plastic components recovered from electronic waste and showed that 100 % can be reused, but that the process parameters need to differ considerably from those used in the processing of new material.”<br />“Now, I hope to be able to contribute to the development of a clearer picture of the technical potential of recycled material, and the functional properties which can be achieved through e.g. suitable melt-processing.  In this context, we are especially interested in cooperation with the industry, in order to be able better to work with processes on a large scale” finishes Antal Boldizar.<br /><br /><span lang="en"><a href="/en/Staff/Pages/antal-boldizar.aspx" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/ichtm.gif" alt="" /><span>Read more about Antal Boldizar</span></a><br /><a href="" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" /><span>Recycled plastic from electronics scrap</span></a><br /></span><a href="" target="_blank"><img class="ms-asset-icon ms-rtePosition-4" src="/_layouts/images/icgen.gif" alt="" /><span lang="en"><span>Read more about SIS</span></span></a><br /><br /><span class="short_text" lang="en"><span><strong>FACTS - SIS group for environmental aspects of plastic</strong></span></span><span lang="en"><span><br />The group influences content for new standards such as CEN and ISO, and develops a basis for new standards (eg test methods, processes, terminology, classifications).<br /><span></span><strong>Participants: </strong>Avfall Sverige, Borealis, Chalmers, Electrolux, Fortum Waste Solutions, Håll Sverige Rent, IKEM, Mondi, Naturskyddsföreningen, Perstorp, Ragn-Sells, RISE, SIS, SPIF, Swerea IVF, Tetra Pak, and Trioplast.<br /><br /><em>Text: Carina Schultz</em><br /><em>Översättning: J Anthony Bristow</em><br /><em>Photo: Sten Jansin (portrait Johan Dahlgren) and Carina Schultz</em><br /></span></span><br />Fri, 10 Aug 2018 00:00:00 +0200