我厂使用的 W18Cr4V 高速钢制φ60～90mm 圆锯片铣刀,成品厚度0.4～0.8mm,热处理前留裕量0.3mm,热处理后变形严重超差是生产中的困难问题。经过多次试验,改进了操作工艺,取得了较好效果。原工艺是用22号铁丝将5～6片扎成一串,每4～5串同时装炉按常规高速钢热处理工艺进行淬火,经二次回火后发现多数变形严重。单片加热后在手压机上矫平,再进 I use the factory W18Cr4V high-speed steel φ60 ~ 90mm circular saw blade cutter, the finished thickness of 0.4 ~ 0.8mm, left margin 0.3mm before heat treatment, deformation after severe heat treatment over tolerance is difficult in production. After many tests, improved operation process, and achieved good results. The original process is to use wire 22 to 5 to 6 pieces tied in a string, every 4 to 5 while at the same time loading furnace according to conventional high-speed steel heat treatment process for quenching, after the second tempering found that most of the deformation. Monolithic heating in the hand press leveling, and then into