本文介绍几种数控铣削外轮廓时确定工件坐标系原点的方法及其操作步骤，并分析了其特点及适用场合。
This paper introduces several methods and operating procedures for determining the origin of part coordinate system in CNC outside milling. It also analyzes their characteristics and application.
用脚踏动控制开关，操作铣头进行仿形铣削，操作便捷、稳定、安全可靠。
Use pedal to move a gauge tap , handle bright metal chopping the head the bright metal being in progress copying, operation is convenient and rapid , stability , safety are reliable.
铣削、刨平、挤压和冲击操作。在中等磨损条件下具有高的韧性。很适合硬焊。
Milling, planing, impact and percussion. High toughness for medium wear resistance. Well suitable for brazing.
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