用滚削代替磨削加工淬火齿轮,目前在许多国家(包括美国)已用于小批量生产。下面介绍的是西德最近在这项技术上达到的水平。目前,加工淬火齿轮所用滚刀的切削部分,既有镶整体硬质合金齿条的,也有钎焊硬质合金刀片的,前者的齿廓形状适用于M2—M10的齿轮,后者适用于更大的模数。到目前为止,淬火齿轮精加工滚刀的市售最大规格为M25。淬火齿轮坯件的硬度达Rc54。加工条件和滚刀寿命,与使用高速钢滚刀加工低碳钢齿轮大体相同。滚切时,既可以用逆铣,也可以用顺铣,不过一般说来,顺铣的工艺效果较好。滚刀刀齿的前角为-30°。所用滚齿机的 Instead of grinding, instead of grinding, quenching gears, many countries (including the United States) have been used for small batch production. Described below are the recent levels achieved by West Germany in this technology. Currently, the cutting part of the cutting hob used for machining a quenched gear has both a solid carbide rack and a brazed cemented carbide insert. The former profile is suitable for the M2-M10 gear, and the latter is suitable for more Large modulus. So far, the largest commercially available hardened gear hob is M25. Quenched gear blanks hardness Rc54. Processing conditions and hob life, and the use of high-speed steel hob machining mild steel gear roughly the same. Hob cut, you can use the inverse milling, milling can also be used, but in general, along the milling process better. The rake angle of hob cutter is -30 °. Used hobbing machine