活塞制造工艺难度与其基本尺寸公差不得超差数微米的要求有关,因此,活塞不得不用,精密机床或高精度机床加工。加工椭圆中凸形活塞时时常得采用磨削以及旋转刀具仿形和偏心切削之类低效工艺手段。除生产效率低外,这些工艺手段尚无法加工新型发动机某些廓形活塞,也无法在更换工件时迅速调节机床。 Piston manufacturing process difficulty and its basic size tolerance must not exceed the requirements of a few microns, so the piston had to use, precision machine tools or high-precision machining. Processed oval convex piston often have to use grinding and rotating tool profiling and eccentric cutting inefficient technology means. In addition to low production efficiency, these processes have not been able to process some of the new engine piston profile, and can not be quickly adjusted when the replacement of the workpiece machine.