锪钻是机械加工常用刀具之一。国家标准锪钻是用整体材料切削方法制成多刃刀具,一般齿数4～8齿。在制造过程中,不但工序长、造价高,且因多刃容屑空间受到限制,切屑易堵塞,尤其在锪小孔时,切屑堵塞更为突出。在锪断续孔表面时,易产生振动,加工表 Drill is one of the commonly used tools for machining. National standard 锪 drill is made of multi-blade cutting method with the overall material, the general number of teeth 4 to 8 teeth. In the manufacturing process, not only the process length is high and the manufacturing cost is high, but also the chip is easily clogged due to the restriction of the space of the multi-edged chip, especially when the small holes are used, the chip clogging is more prominent. In 锪 intermittent hole surface, easy to produce vibration, processing table