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在齿轮的制造工艺中,为了提高淬硬齿轮的精度,目前均采用磨齿。由于齿轮的热处理产生变形,对于那些精度不高于7级(JB 179-60)的齿轮,也只得采用磨齿工艺来解决。齿轮经磨齿后,可以得到很高的几何精度。但对于一些本来不必磨齿的齿轮,就大幅度地提高了制造成本。况且,磨齿也有它不可克服的弱点:效率低、成本高,而磨削后的轮齿表面,存在严重的残余拉应力,影响表面裂纹和疲劳强度。尤其是对于一些大模数重载荷的硬齿面齿轮,更不宜采用磨齿。为了解决淬火变形和提高齿轮精度,我们研制了一种镶有高强度、高硬
In the gear manufacturing process, in order to improve the accuracy of hardened gears, are currently used grinding teeth. Due to the deformation of the gear heat treatment, for those with precision not higher than 7 (JB 179-60), the gear can only be used to solve the grinding process. Gear grinding, you can get high geometric accuracy. But for some do not have to wear gear, it greatly increased manufacturing costs. Moreover, grinding also has its insurmountable weakness: low efficiency and high cost. However, there are serious residual tensile stress on the surface of ground tooth, which affects the surface crack and the fatigue strength. Especially for some large modulus heavy-duty hardened gears, it is more appropriate to use grinding teeth. In order to solve the hardening deformation and improve gear accuracy, we developed a set with high strength, high hardness