Multiple response optimization for improved machined surface quality

Work material and cutting and tool parameters have a significant effect on the post-machining condition of a machined component. A case study from industry has been selected where it was observed that work hardening of machined surface leads to distortion of thin sections of the component. A multiple response optimization methodology has been used to identify robust cutting and tool parameter settings to minimize the variation and average value of the surface hardness and to minimize the depth of work hardening of the machined surface. The work material used is CuZn40Al2, which is also the material of the actual component.