Influence of the Cutting Edge Microgeometry on the Surface Integrity During Mechanical Surface Modification by Complementary Machining

In metal production, mechanical surface modifications are used to optimize workpiece characteristics to improve properties such as fatigue strength. Machining and mechanical surface modification can be integrated in the process strategy Complementary Machining. After machining the cutting tool is used reversely acting as a tool for mechanical surface modification. This paper shows the influence of the cutting edge microgeometry on process forces and temperatures as well as process induced grain refinement in the surface layer during the mechanical surface modification of Armco-Iron and AISI 4140. The mechanical surface modification is simulated in a 3D-FEM-simulation with ABAQUS/Standard.