论文部分内容阅读
我厂出口产品螺纹柄立铣刀,柄部螺纹经过淬火处理后,在Y7520W万能螺纹磨床上磨制而成。柄部螺纹外径为φ8～φ32mm多种规格,螺距t=1.27mm,螺纹部分的硬度为HRC35～40,刀具材料采用国内生产的超硬铝高速钢W6Mo5Cr4V2A1。由于齿部硬度较一般高速钢刀具高(为HRC65～68),为了保证过渡区的硬度要求,在淬—回火的过程中,螺纹部分的硬度往往接近上限值,尤其是φ15mm以下柄径的立铣刀螺纹部分的硬度,有时还略高于
I export products factory thread milling cutter, handle thread after quenching, the Y7520W universal thread grinder grinding on. Shank thread diameter φ8 ~ φ32mm a variety of specifications, pitch t = 1.27mm, the thread part of the hardness of HRC35 ~ 40, the tool material used in the production of super-hard aluminum high-speed steel W6Mo5Cr4V2A1. As the tooth hardness than the high-speed steel cutting tools for high (HRC65 ~ 68), in order to ensure the transition zone hardness requirements, quenching - tempering process, the thread part of the hardness tends to close to the upper limit, in particular, φ15mm below the stem diameter The hardness of the threaded part of the end mill is sometimes slightly above