Heat treatment is an important working procedure in transmission gear process, it is a key process to increase gear hardness, strength, rubbing fastness. At one time, heat treatment makes deformation and accuracy reduce. The precision reduction of gear induces serious noise and abnormal sound in gear power transmission , and even lead to early failure of gear. The deformation control in heat treatment is a important issues in automotive industry, it needs a long-term to research..
The factor of deforma...