这种螺纹车刀(见图)的特点主要是两条刀刃都磨成前面负倒棱型刃口,-5°×0.2～0.3;其次,在刀尖圆弧刃部分用油石背出负后角-10°～-20°×0.3～0.4的消振棱,它可以消除振动,提高加工表面光洁度及刀具耐用度。切削用量:工件转数600～800转/分,吃刀深度t,第一刀为3毫米,第二刀为0.9毫米。使用效果:在普通车床上切削 This thread turning tool (see Figure) is characterized by two edges are ground into the front negative chamfered edge, -5 ° × 0.2 ~ 0.3; Second, part of the arc edge in the tool tip back out with a stone negative Angle -10 ° ~ -20 ° × 0.3 ~ 0.4 damping edge, it can eliminate vibration and improve the machining surface finish and tool durability. Cutting amount: The number of workpiece rotation 600 ~ 800 r / min, depth of eating t, the first knife is 3 mm, the second knife is 0.9 mm. Use effect: cutting in the ordinary lathe