关键词: 渗碳淬火；变形控制；装料方式

Abstract: The paper mainly studies the heat treatment deformation rule of the quenching process of 20CrMnTi alloy gear of a light vehicle platform, and uses the new structure tooling to control the deformation control of the platform. By means of different the charging method of parts, studying the gear accuracy, profile, flatness, layer depth and hardness help to direct a more suitable charging method. The results show that matrix tooling can obviously improve the heat treatment deformation of gears. After using the matrix tooling, the gear accuracy of heat treatment changes from 4 to 2. The changes of flatness, layer depth and hardness have been reduced to some extent.

Key words: Carburizing and quenching; Deformation control; Charging method