目前,钛合金的应用越来越广泛,对加工也提出了更高的质量和经济要求。用普通的丝锥攻钛合金相当困难,一个普通的丝锥只能攻一个螺纹就不能再使用。我对普通丝锥进行了刃磨(较小的丝锥可用金刚石什锦(?)削),这样一个普通丝锥可攻10个以上的螺纹,其精度达到3级以上。 其方法;将普通丝锥的后角磨成10°～13°左右,切削刃留O.2～0.3mm,在攻丝时适量加一些菜油或豆油则效果更好。 At present, the application of titanium alloy is more and more widely, and also put forward higher quality and economic requirements for processing. Titanium tapping with ordinary tap is quite difficult, an ordinary tap can only tap a thread can no longer be used. I sharpened an ordinary tap (a smaller tap could be cut with a diamond assortment) so that a normal tap could tap 10 or more threads with an accuracy of level 3 or higher. The method; the ordinary tap rear angle ground to 10 ° ~ 13 ° left cutting edge O.2 ~ 0.3mm, tapping appropriate amount of vegetable oil or soybean oil added is better.