Effect of microstructure of steel P65M on the wear resistance of die cold upsetting tooling

摘要

The effect of the microstructural parameters, such as carbide non-homogeneity and dimensions of steel P65M grains, on the pattern of variations of the wear resistance of cold upsetting tooling has been studied. It is shown that matrices tempered to the 11th point grain are most wear resistant. Cementation of working surfaces can increase the wear resistance of workpieces and tools in contact friction.