Based on NC electrical discharge grinding (EDG) machine, the NC spiral servo feed system for machining small diameter PCD twist drills machining system is developed.

• 基于数控电火花磨削加工机床,研制了用于加工小直径PCD麻花钻头的数控螺旋伺服进给加工系统,介绍了系统的加工原理、机械系统和伺服控制系统的设计方法。