FINISHING METHOD OF SINTERING OLEOOBEARING AND ITS TOOL

摘要

PURPOSE:To improve surface roughness with scarcely damaging holes by squeezing the slide surface of a metal using the tool point with a specified are. CONSTITUTION:The upper surface of the flange section in a tool is the shank 23 and the lower surface is slightly the smaller guide section 25 than the bore of a metal. Several points 22 are radially formed from their center on the lower surface of the flange section. The angle of these points is 0.1-0.8R. Their end faces are finished by revolving these points and inserting the metal from downward.