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在齿轮制造过程中进行热处理是提高其使用寿命的重要环节。目前多把热处理放在齿形加工之后,因为热处理后齿面变硬,进行机械加工会遇到很多困难。这样做,齿面硬度是提高了,接触强度相应增强,但会导致齿面变形,使齿轮接触精度及平稳性精度下降,噪音和振动增大,两下相抵,使热处理的实际效益被大大减弱了。为了既保持热处理的优点,又使精度符合设计要求,采取了热处理后磨齿的方案,但成本太高,生产周期太长,而且将硬化层磨掉也
Heat treatment in the gear manufacturing process is to improve the service life of an important part. The current heat treatment on the tooth shape processing, because the tooth surface after heat hardening, mechanical processing will encounter many difficulties. In doing so, the hardness of the tooth surface is increased, and the contact strength is correspondingly enhanced, but the tooth surface is deformed, the accuracy and the precision of the gear contact are decreased, the noise and the vibration are increased, and the actual benefits of the heat treatment are greatly reduced It’s In order to not only maintain the advantages of heat treatment, but also to meet the design requirements of precision, heat treatment adopted after grinding program, but the cost is too high, the production cycle is too long, and wear off the hardened layer also