During ausform finishing process of hardened gears, there is plastic displacement of metal on the tooth surface and the distortion of tooth profile.
在齿轮热滚挤加工中，轮齿上的金属在强制挤压力的作用下沿齿面产生塑性流动，使齿形发生变化。
Therefore, the conventional heat treatment process after forging can be replaced by the new ausform hardening process, to save energy and improve production efficiency.
因此，新的锻热淬火工艺可以代替传统的锻后热处理工艺，达到节能降耗、提高生产效率的目的。
Therefore, the conventional heat treatment process after forging can be replaced by the new ausform hardening process, to save energy and improve production efficiency.
因此，新的锻热淬火工艺可以代替传统的锻后热处理工艺，达到节能降耗、提高生产效率的目的。
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