Experimental study on hard cutting ball bearing

XIE Jun，ZHANG Ya-ping

（College of Mechanical and Electrical Technology，Taizhou Polytechnic College，Taizhou 225300，China）

Abstract：Aiming at the surface roughness of hard cutting ball bearing，experimental study on the cutting parameters and tool geometry on surface roughness was carried out. Experimental investigation of surface roughness was performed in ball bearing rings with CBN cutter. The orthogonal experiments were performed to describe the relationship between surface roughness and cutting parameters and corner radius. Optimal cutting parameters and tool geometry were found in this experiment.The results indicate that feed rate is found as the most influential parameter followed by corner radius on surface roughness，whereas increased feed rate deteriorate the surface roughness noticeably. The effect of cutting speed on the surface roughness is less. The contribution of depth of cut is very slight.