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圆柱齿轮在渗碳淬火后花键孔会产生不同程度的缩孔变形。我厂原采用高速钢挤压刀进行挤压校正,但只能解决40～50％,剩余部分则由热处理退火后进行拉刀扩孔和淬火校正。这样做,不仅延长了生产周期,严重影响生产任务的完成,而且产品质量不能保证。我们带着问题,认真学习了毛主席的有关教导,边分析边学习,参照化学去毛刺的原理,经多次试验,终于用腐蚀法扩孔解决了这个问题,现介绍如下。
Spur gear in the carburizing and quenching spline hole will produce different degrees of shrinkage deformation. I plant the original use of high-speed steel squeeze knife squeeze correction, but only to solve 40 to 50%, the remaining part of the heat treatment after broaching broaching and quenching correction. This will not only prolong the production cycle, seriously affecting the completion of production tasks, and product quality can not be guaranteed. With a series of questions, we seriously studied Chairman Mao’s teachings and analyzed and studied the principles of chemical deburring. After many tests, we finally solved this problem with the corrosive method of expanding the hole.