用滚刀加工圆柱齿轮是齿轮齿形加工中常用的方法。一般地说,滚齿的生产率比插齿高,并能达到一定的精度及粗糙度。近年来,由于刀具结构的改进及优质高速钢、硬质合金材料用于滚刀,中硬齿面齿轮、硬齿面齿轮齿形的最后精加工,也可以用滚刀加工。而内齿轮的加工,目前仍沿用插齿和成形片铣刀铣齿的传统方法。内齿轮的滚齿加工国内外仍处于试验阶段。现在试用的内齿轮滚刀有以下两种: Cylindrical gear hob is commonly used method of gear tooth shape processing. In general, hobbing productivity than the gear teeth, and can achieve a certain degree of accuracy and roughness. In recent years, due to the improved tool structure and high-speed high-quality steel, carbide materials for hobs, hardened gears, hardened gear tooth final finishing, can also be hob. The internal gear machining, is still used in gear milling and forming the traditional method of milling cutter. Internal gear hobbing processing is still in the experimental stage at home and abroad. There are two types of internal gear hobs now available: