Влияние электронно-лучевой обработки на структуру и свойства быстрорежущей стали

Abstract

Results of research influence of the modes of electron beam processing on structure and properties of P6M5 high-speed cutting steel are presented in article. On the basis of pilot studies, the optimum mode of electron beam processing of high-speed cutting steel is chosen. It is experimentally defined that after electron beam processing the microhardness of P6M5 high-speed cutting steel increases to 950 MPa and wear resistance increases to 1,3 times in comparison with initial material. It is established that electron beam processing allows receiving the modified layer with a high hardness and high resistance to abrasive wear. Substantial increase of microhardness and wear resistance of high-speed cutting steels after electron beam processing shows prospects of application of this way of processing for increase of operability of the cutting tools from high-speed cutting steels.