Process design of high-pressure gas quenching for a gear hub based on multi-field coupling simulation

doi:10.13251/j.issn.0254-6051.2022.12.041

Abstract

Abstract: According to the requirements of process design of high-pressure gas quenching for 20CrMnTi gear hub, a coupling simulation system of the flow field, temperature field, phase field and stress-strain field was established, which can realize the synchronous coupling calculation of the quenching gas flow and workpiece. Using this system, the high-pressure gas quenching process of gear hub under different quenching gas pressures and gas blowing modes was simulated. By analyzing the microstructure, hardness and distortion of the gear hub under different process schemes, an optimum process scheme of 2.0 MPa and lower unidirectional blowing is proposed, and the simulation results meet the performance requirements of the gear hub.

Key words: multi-field coupling, numerical simulation, high-pressure gas quenching, synchronizer gear hub

CLC Number:

TG151.2

Wang Hao, Wang Jing, Xu Jun, Gu Jianfeng, Guo Zhenghong. Process design of high-pressure gas quenching for a gear hub based on multi-field coupling simulation[J]. Heat Treatment of Metals, 2022, 47(12): 244-251.

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