Швидкісне шліфування високолегованих композитів для деталей тертя друкарської техніки

Abstract

The results of experimental study of high-speed grinding surfaces processes of friction parts made from high friction composites for printing equipment are presented in the article. Processes of high-speed elbor grinding of new high-composite-based alloys and tool steel and grinding waste of nonferrous alloys of nickel and aluminum were investagated for the first time in the scientific and technological practices. It have been shown that the basic regularities of high-speed elbor grinding of high-composites from sludge waste of tool steels, nickel and aluminum matrials coincide with the fundamentals of grinding materials theory. It was proved that the granularity, material of elbor circle bunch and grinding cutting conditions affect on the surface parameter Ra quality and on the processing performance parameters of high-speed grinding of new wear-resistant high-composites. Elbor grinding wheels whit granularity 14−28 microns on bakelitno-regulated rubber bond and cutting conditions provide the best performances of parameter Ra, which satisfy the high demands to the working surfaces of friction parts. The advantages of surface treatment by elbor wheels have been shown. It was developed the recommendations on the choice of cutting conditions for elbor high-speed grinding of friction parts for various technological purposes, which are made from new heavily doped composite alloys which are based on the grinding waste of tool steels, nickel and aluminum. This materials provide the necessary requirements of surface roughness and productivity processes.