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复合中心钻的两端刃部折断后,一般的就作废品处理,极为浪费。因为复合中心钻是由贵重的金属材料 W18Cr4V 或 W9Cr4V2高速钢淬火制成的。我厂有很多老师傅,把废的复合中心钻改做车刀来继续使用。其方法是把我们日常使用的内孔或外圆车刀刀杆的方孔,按复合中心钻的直径,将方孔改成圆孔(见图)。这样便使得报废了的复合中心钻得以继续发挥作用,不仅节约了材料,而且切削性能电比较好。利用同样的方法也可以将高速钢钻
Composite Center drill at both ends of the blade after the break, the general treatment of waste, very wasteful. Because the composite center drill is made of precious metal material W18Cr4V or W9Cr4V2 HSS quenched. I have a lot of old factory master, the waste of the composite center drill do turning to continue to use. The method is to change the square holes into round holes according to the diameter of the compound center drill (refer to the figure). In this way, the scrapped compound center drills to continue to function, not only saving material but also cutting power. Using the same method can also be high-speed steel drill