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本文简要地讨论了残余应力对麻花钻使用寿命的影响;介绍了高速钢直柄麻花钻预应力热处理的方法原理和试验情况。结果表明,调整麻花钻刃口的残余应力状态,可以提高其使用寿命。
This article briefly discusses the influence of residual stress on the service life of twist drills. The principle and test of prestressed heat treatment of high-speed steel straight shank twist drill are introduced. The results show that adjusting the residual stress state of the twist drill can improve its service life.