本文介绍了两种无夹紧机构的新型快速停钻装置,可用来精确地取得切屑的根部,并将其制成显微金相磨片,对钻削常用钢(45~#钢)和难加工材料(1Cr18Ni9Ti)的积屑瘤之变化规律进行了系统的分析。同时还采用管状试件研究了钻刃上各点的切屑变形规律,指出了轴向力、扭矩、变形系数和位置半径的关系。 This paper introduces two new quick-stop devices without clamping mechanism, which can be used to accurately obtain the root of the chip and make it into a microscopic metallographic grinding disc, which is very useful for drilling common steel (45 ~ # steel) and difficult Processing materials (1Cr18Ni9Ti) of the BUE rule changes were systematically analyzed. At the same time, the tube specimen was used to study the chip deformation of each point on the drilling edge, and the relationship between axial force, torque, deformation coefficient and position radius was pointed out.