As previously mentioned, the axial feed is automatically generated when cutting a thread by means of the lead screw, which drives the carriage.
如前所述，当依靠驱动大拖板的丝杆切削螺纹时轴向进给是自动产生的。
It is difficult to machine the variable pitch of screw part on the CMC lathe without variable pitch cutting faction.
对于只具备普通螺纹切削功能的数控车床，一般来说不能加工变螺距的螺纹。
The embedding shanks are fitted with a cutting screw.
掩埋臂上还安装了一个切断螺刀。
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