直齿圆锥齿轮在汽车、拖拉机及其它机器上应用很广,而且需要量也很大。日前有许多工厂对齿形成形仍采用传统的切削加工方法。即,下料——热锻成圆锥台(或由粗棒料车削成圆锥台)——铣齿(或插齿)。采用这种方法生产锥齿轮,不仅浪费金属、生产率极低,而且产品质量差、成本高。 Spur bevel gears are widely used in cars, tractors and other machines and require large quantities. A few days ago a lot of factories still use the traditional cutting method to the tooth form. That is, blanking - hot forging into a truncated cone (or truncated cone from a rough bar) - milling (or serration). Using this method to produce bevel gears not only wastes metal, it has very low productivity, but also has poor product quality and high cost.