After roasting and grinding after the step of curing, the size, shape and mutual position accuracy of the surfaces

After roasting and grinding after the step of curing, the size, shape and mutual position of the surface accuracy can not reach with the technical requirements must be turning, research rubbing and grinding. The unit is also used for production of  polycrystalline diamond  need not meet the requirements specifications and use, but also to be turning. Due to objective technical reasons, mostly at home and abroad using the traditional knife bowl for turning. In the course of processing it, the wheel at high speed (300 ~ 400m/min) driven by thin hardened steel cutter  synthetic diamond , and make the cutting, excess amount of removal of the grinding wheel. Since the machining speed rotating grinding wheel and the cutter bowl, causing the dust and noise processing large cutting  Synthetic diamond  rate is very small, so the processing efficiency is low and the overall cost is high, operator labor intensive. Large particles such as the use of diamond tools, expensive and of low flexural strength of the diamond cutting easily damaged, causing the cutting wheel with it the cutting depth and feed rate is very small, generally only used for finishing.