通常键槽拉刀设计,切削齿后刀面上都不设计棱带,只在校准齿的后刀面上设计有棱带,以保证重磨后拉刀的齿形尺寸。图1所示工件内锥孔上的键槽,用拉刀拉削而成。拉刀是按资料上介绍的一般通用的方法设计制造的,尽管采取了保证导向可靠、修正拉削速度、提高润滑性等各种措施,仍然不能避免拉刀拉削行进时上下跳动,甚至使拉刀折断。加工出的工件键槽侧面光洁度只有 Usually keyway broach design, cutting teeth are not designed on the flank of the ribbon, only in the calibration of the tooth flank design with a ribbon to ensure that after grinding broach tooth size. Figure 1 shows the taper hole on the workpiece keyway, broach made with a broach. Broach is based on the information presented in the general method of design and manufacture, despite the guidance to ensure reliable, modify the broaching speed, improve lubricity and other measures, still can not avoid the broach broaching when moving up and down, or even Broach Broken. The machined workpiece keyway side finish is only