对活塞环仿形车削误差的统计分析表明：靠模仿形加工中存在系统误差。
The Statistical analysis of piston ring tracer cutting errors shows that there is a systematic error in the tracer cutting.
介绍车刀的偏置是仿形车削盘形凸轮型面产生制造误差的主要原因。
The main reason that gives rise to manufacturing error of contouring turn plate CAM former face is derivation of cutter.
从圆柱凸轮仿形磨削加工原理入手，分析了凸轮升程误差的产生原因。
Starting from the simulated grinding processing principle of a cylindrical CAM, the author analyzed the reasons why the CAM lifting errors would be occurred.
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