How to prevent the deformation of gears in precision metal processing? 'Hardware'

I believe that many friends have encountered gears deformed during precision metal processing. In order to avoid such incidents in the future, how can we prevent precision metal processing gears from deforming? The author will share below. Techniques to prevent the deformation of precision metal processing gears: 1. Control the quality of raw materials: high-quality raw materials are a prerequisite for the production of high-quality products. No matter what method is adopted, the raw materials must undergo strict chemical composition inspection and grain size after arriving at the factory. The purpose of measurement and purity evaluation is to adjust the heat treatment deformation in time to improve the quality of the tooth profile processing. 2. Control gear precision: gear precision must be controlled, linear speed is higher than 20m/s gear, tooth pitch limit deviation, gear ring radial runout tolerance, tooth direction tolerance must be stable and reach level 7 accuracy. In the case of a gear with 7-level precision, the tooth part must be reversed and the tooth root boss must be strictly prevented. 3. Prevent heat treatment deformation: After rough machining, the tooth blank becomes a fine forging, which is normalized or quenched and tempered to remove the residual force and soften the steel for cutting. The skills of precision metal machining gear deformation are shared with you. If you encounter such a situation, you can make corresponding adjustments according to the above methods. I hope to help you.