Influence of Different Asymmetrical Cutting Edge Microgeometries on Surface Integrity

The importance of cutting edge microgeometries in machining operations has been proven time after time again. Not only with regard to wear, but also as an important factor influencing the resulting surface integrity. In this paper the influence of asymmetric cutting edge microgeometries and different process parameters on the resulting accumulated plastic strain, plastic strain rates and surface layer microstructure of AISI 4140 in cutting experiments and FE-simulations is investigated. To characterize the cutting edge microgeometries a recently published method considering the process parameters such as cutting angles is used.