Based on practice of the remanufacture for lathe CA6140,this paper introduces the meaning,common process and main contents of old lathe reformation by using CNC system.

• 基于对CA6140型车床的再制造实践,论述了旧车床数控化再制造的意义、一般步骤及主要内容,探讨了旧车床数控化再制造的技术要点。