THE DEPENDENCE OF THE PHYSICAL AND MECHANICAL
- 1 National Technical University of Ukraine "Kiev Polytechnic Institute", Kyiv, Ukraine
- 2 I.N. Frantsevich Institute for problems of materials science of National Academy of Sciences of Ukraine, Kyiv, Ukraine
The results of studies of the influence of the type of machining and tool material to the structural state of the surface layer and the fatigue strength of ХВСГsteel during machining are shown. Processing with the composite-10 tool in a surface layer for α – and γ – phases is accompanied only by compressing residual pressure while abrasive processing promotes occurrence of stretching pressure of an I-type. Increasing of cutting speed of the composite-10 tool from 50 to 200 m/min does not lead to significant changes in fatigue strength.