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作者针对生产中遇到的鳞刺等问题,试制成功加工不锈钢用的新型拉刀,从而消除了鳞刺,并可使工件光洁度提高两级到三级(由▽_4提高到▽_6～▽_7)。这种拉刀用于拉削高温合金、高强度合金、铝合金也获得良好效果。拉刀长度缩短1/5～1/10。新型拉刀的特点是,采用大前角、大齿升和大齿距。本文还指出在拉刀制造中磨前刃、磨后刃、磨键两侧时应注意的事项。并附有新型拉刀的结构图与几何参数表。图2、表1。
In response to the problems encountered in production, such as the scale, the successful trial of stainless steel with a new broach, eliminating the needles, and can improve the workpiece finish two to three (from ▽ _4 to ▽ _6 ~ ▽ _7 ). This broach is used to broach high-temperature alloy, high-strength alloy, aluminum alloy also get good results. Broach length shortened 1/5 to 1/10. The new broach is characterized by the use of large rake angle, large teeth and large pitch. This article also pointed out that in the broach manufacturing front grinding blade, grinding blade, grinding the keys on both sides should pay attention to the matter. And with the new broach structure and geometry parameters table. Figure 2, Table 1.