高应力齿轮,例如航空齿轮在高频淬火、渗碳淬火等热处理之后,需要磨齿,为了避免牙齿根部烧伤,为了避免降低残余压应力的有利作用,牙齿根部不应磨削,这就是高应力齿轮常常带有根凹量的原因。为了形成根凹量,刀具应当怎样设计才比较合理?根凹量大小对齿轮弯曲疲劳强度县有怎样的影响?本文对上述两个问题作了初步探讨。 High-stress gears such as aerospace gears require grinding after heat-treatment such as induction hardening and carburizing and quenching. In order to avoid the beneficial effects of residual compressive stress, tooth roots should not be ground, which means high stress Gears often have the root concave amount of reason. In order to form the root concave, how to design the tool is more reasonable? The amount of root concave on the gear bending fatigue strength counties have what effect? ​​This article made a preliminary discussion of the above two issues.