Vaishak Ramesh Sagar

Geometrisäkring av laser-behandlade metallkomponenter

Vaishak Ramesh Sagar, Produktutveckling IMS, försvarar sin doktorsavhandling.
Vaishak tillhör forskargruppen Geometrisäkring & Robust Konstruktion. Hans forskning fokuserar på lasertillverkning av metall och hur den påverkar den geometriska kvaliteten. Vaishaks forskning inom Smart Assembly kommer att bidra till utvecklingen av metoder och verktyg som stödjer design för tillverkning och montering.​

Vaishak Ramesh Sagar

Abstract (engelska)
In every manufacturing process, the part being manufactured varies from the desired geometry. As a consequence, the product’s performance and aesthetic properties can get affected. To minimize the effects, it is critical to identify and deal with the geometric variation sources in the early phases of the product development process.
For novel laser-based manufacturing processes such as laser heat treatment of sheet metals, laser-assisted metal additive manufacturing, knowledge on geometric variation sources is limited. Also, the methods and tools in practice today may not be readily applicable to support in analyzing and minimizing the effect of variation.
The research presented in this thesis has focused on developing knowledge to provide insights into the effect of the aforementioned manufacturing processes on geometric variation and, thereby, assist in establishing methods and tools for the geometry assurance process. A set of geometric variation contributors are identified and solutions to minimize the effect on geometric variation are prescribed. Moreover, simulation methods are presented that enable accurate decision-making and demonstrate integration into the virtual product development setup. In summary, this thesis demonstrates the significance of considering geometry assurance in the product development process of laser processed metal components.


Sidansvarig Publicerad: on 12 maj 2021.