本文论述了用扭力扳手检测金刚石圆锯片焊接强度的原理,分析了金刚石圆锯片掉齿的原因,浅析了其它几种不同应力计算公式在推导原理上存在的缺陷。用本文推荐的应力计算公式得出的参考扭矩去检测锯齿的焊接强度,在很大程度上可解决锯片掉齿问题,为金刚石圆锯片的使用提供了安全保障,也保证了金刚石圆锯片的锯切性能。 This paper discusses the principle of using a torque wrench to detect the welding strength of diamond circular saw blades, analyzes the reasons for the diamond saw blade dropping, and analyzes the defects in the derivation principle of several different stress formulas. The reference torque derived from the stress calculation formula recommended in this paper is used to detect the welding strength of serrations. This can largely solve the problem of saw blade tooth loss and provide safety guarantee for the use of diamond circular saw blades. The diamond circular saw Sawing performance of the film.