例:车削如图所示圆锥螺纹。螺距为3.5mm,螺纹大径为16mm,总背吃刀量为3mm,三次进给背吃刀量(半径值)均为1mm,进退刀段取1=3mm、2=1.5mm,进刀方法为直进法。用G82指令编程。
O0082
N10 M06 T0303
N20 M03
N30 G82 G91 X-9
Z-44.5 I-12.5 F3.5
N40 X-11 Z-44.5
I-12.5 F3.5
N50 X-13 Z-44.5
I-12.5 F3.5
N60 T0300
N70 M05
N80 M02