Experimental study on the abrasive wear in metal cutting

Experiments were carried out in an attempt to analyze the influence of cutting conditions and parameters of the abrasive inclusions in the work material on the amount of abrasive wear of the carbide cutting loads. The specimens were prepared by powder metallurgy from high manganese steel with a controlled structure and varied with the kind, concentration and granularity of the abrasive particles. The results show that abrasive wear increases approximately linearly with the cutting temperature due to the change of the abrasive capability of some abrasive inclusions with work hardness comparable with that of the tool material. The amount of abrasive wear wABR was found to depend non-linearly on the particle concentration pa; wABR ∼ pa23. Another conclusion is that the amount of worn metal increases to some extent with the size of the abrasive particles due to the larger size of the carbide conglomerates split off by the particles when they move along the tool surface.