硬质合金可转位钻头,瑞典山特维克工具厂称之为“U”型钻,是一种新型钻孔刀具。它具有生产效率高、加工质量好、刀具成本低、工人劳动强度小等主要优点。在国外已得到广泛应用,国内目前也正在推广应用。本文介绍天津重型机器厂研制的装凸三边形硬质合金刀片的可转位钻头的结构设计,工艺特点及使用注意事项,可供参考。 Carbide indexable drill bit, Sweden Sandvik tool factory called “U” type of drill, is a new type of drilling tool. It has the main advantages of high production efficiency, good processing quality, low tool cost and small labor intensity of workers. In foreign countries have been widely used, the domestic is also being applied. This article introduces the structural design, process characteristics and precautions of the indexable drill bit with convex tri-shaped carbide blade developed by Tianjin Heavy Machinery Factory for reference.