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用热滚轧工艺生产后桥伞齿轮毛坯可以节省材料、缩短切削工时和提高齿轮的强度。同时这种工艺特别适用于制造圆环形毛坯,例如滚动轴承的内、外环。因此这种工艺对于圆形零件需用量较大的单位很有意义。我国早在1964年建成的火车车轮轮箍工厂就是采用这种工艺生产车轮轮辋的。但这种工艺在我国汽车行业尚未获得应用,在国外汽车行业中也只是刚刚开始采用,因而在此介绍一下,供大家在开展技术革命和技术革新时参考。
The production of rear axle bevel gear blanks with hot-rolling technology saves material, shortens the cutting time and increases the strength of the gears. At the same time this process is particularly suitable for manufacturing circular blanks, such as the inner and outer rings of rolling bearings. So this kind of craft is very meaningful to the unit which the circular part needs to use more greatly. Our country built back in 1964 as a train wheel hub factory is using this technology to produce wheel rim. However, this kind of technology has not been applied in the automobile industry of our country. It has just started to be used in the foreign automobile industry. Therefore, it is introduced here for your reference when carrying out technological revolution and technological innovation.