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键槽拉刀通常采用层切式切削图设计方式,如图1。切屑沿齿刃前面呈节状卷屑排出,获得较好的表面光洁度(图2)。但键槽
Keyway broach is usually cut-type cutting diagram design, shown in Figure 1. Chip along the front edge of the blade was discharged volume, get a better surface finish (Figure 2). But keyway