硬车削滚动轴承套圈的试验研究

Experimental study on hard cutting ball bearing

针对滚动轴承套圈硬车削加工过程中表面质量存在的问题,对硬车削过程中切削用量和刀具参数对表面粗糙度的影响进行了研究,采用CBN刀具进行了6205滚动轴承套圈的硬车削加工试验,将进给量、切削速度、切削深度和刀尖圆弧半径作为试验因子,通过正交试验分析了它们对零件加工后表面粗糙度的影响规律,并归纳出了该试验范围内的最佳切削用量和刀具参数组合。研究结果表明,进给量对表面粗糙度的影响最大,刀尖圆弧半径对表面粗糙度的影响次之,切削速度对表面粗糙度的有一定影响,切削深度对表面粗糙度的影响非常小。

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 comer 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 comer 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.