The paper presents tool offset in the process of CNC lathe machining,and expounds computational method of tool offset when CNC lathes do not possess the function of tool-radius offset.

• 全面介绍了数控车床加工过程中的刀具补偿,并且对数控车床不具备刀具半径补偿功能时的刀具补偿计算方法进行了阐述。