基于多场耦合模拟的齿毂高压气淬工艺设计  

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

作　　者：王皓 王婧 徐骏 顾剑锋 郭正洪[1] Wang Hao;Wang Jing;Xu Jun;Gu Jianfeng;Guo Zhenghong(Institute of Materials Modification and Modelling,School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China;Shanghai Key Laboratory of Materials Laser Processing and Modification,School of Materials Science and Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学材料科学与工程学院材料改性与数值模拟研究所,上海200240 [2]上海交通大学材料科学与工程学院上海市激光制造与材料改性重点实验室,上海200240

出　　处：《金属热处理》2022年第12期244-251,共8页Heat Treatment of Metals

基　　金：国家重点研发计划(2018YFB2001902)。

摘　　要：针对20CrMnTi齿毂高压气淬工艺设计的需求,建立了一套流场-温度场-组织场-应力应变场耦合模拟体系,能够实现对淬火气流与工件的同步耦合计算。利用该体系模拟了不同淬火气压和进气方式下的齿毂高压气淬过程,分析了不同工艺方案下齿毂的组织成分、硬度以及畸变,确定了2.0 MPa、下方单向进气的工艺方案,模拟结果满足齿毂性能要求。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.

关 键 词：多场耦合 数值模拟 高压气淬 同步器齿毂 

分 类 号：TG151.2[金属学及工艺—热处理]