Machinability is defined as the ease with which a specific material can be machined. It is generally assessed using various indicators such as tool life, tool wear, chip-breakability, cutting forces, material removal rate and surface finish. The interactions between the tool and the workpiece material are complex and can change the microstructural properties of the workpiece material. Even small variations in the type and amounts of workpiece micro-constituents can have a significant impact in machining, specifically on tool life. Several initiatives at MCR have been dedicated to better understanding these complex tool-workpiece interactions. This demands a multidisciplinary approach, which includes customized, sensor-based machining experiments, in-depth characterisation of workpiece materials and worn tools, and modelling and simulation of tribological phenomena on worn surfaces.
Charlie Salame, PhD student, Chalmers