我厂生产的汽车电器上的凸轮,形状特殊,有四方和六方的,在以往几年的生产中,表面光洁度达不到▽▽▽8,要在磨削后加一道抛光工序。成批大量的抛光,造成了生产的被动,质量也不够好。同时经常在表面产生龟裂,造成成批报废。有些龟裂,才磨下来时看不见,但一经酸洗,就显露出来了。为了解决表面光洁度不高和龟裂现象,将砂轮 I plant on the production of automotive electrical appliances on the cam, special shape, a Quartet and the six-party, in the past few years the production, surface finish up to ▽ ▽ ▽ 8, to add a grinding process after grinding. Large quantities of polishing, resulting in passive production, quality is not good enough. At the same time often produce cracks on the surface, resulting in bulk scrapped. Some cracks can not be seen until they are ground down, but once they are pickled, they are revealed. In order to solve the surface finish is not high and crack phenomenon, the wheel