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新能源汽车底盘后上摆臂多道次锻造自动化模拟计算
英文标题:Automatic simulation calculation on multi-pass forging for rear upper swing arm for new energy vehicle chassis
作者:   晟1   玉1 张文会2 张广和2 陈守忠2   海1 3 
单位:1. 大连理工大学 2. 浙江锐泰悬挂系统科技有限公司 3. 大连理工大学宁波研究院 
关键词:后上摆臂 JMatPro 30MnVS非调质钢 自动化模拟 多道次锻造 
分类号:TG316.3
出版年,卷(期):页码:2024,49(1):12-22
摘要:

 某新能源汽车底盘后上摆臂采用30MnVS非调质钢进行多道次锻造生产,工艺流程长、研发周期长。为提高锻造工艺的研发效率,采用数值模拟的方法对辊锻、制坯、预成形、终成形等主要成形道次进行了计算。采用JMatPro计算30MnVS非调质钢的力学性能参数,再利用DEFORM前处理自动化程序,对多道次锻造进行自动化模拟计算。通过分析各道次的宏观成形及温度、损伤、等效应力与等效应变场结果,预测可能产生的缺陷,得出各道次成形过程中的相对最优运行速度。通过对比实际产品的成形效果和缺陷,验证了模拟的可靠性。证明了采用JMatPro计算材料参数及锻造模拟自动化的可行性,该方法可以进一步提高锻造工艺的研发效率。

 The rear upper swing arm of a new energy vehicle chassis is produced by multi-pass forging using 30MnVS non-quenched and tempered steel, which requires a long process flows and long research and development cycle. Therefore, in order to improve the research and development efficiency of forging process, the main forming passes such as roll forging, billet making, pre-forming and final forming were calculated by numerical simulation method, and the mechanical performance parameters of 30MnVS non-quenched and tempered steel were calculated by JMatPro. Then, the DEFORM pre-processing automation program was used to perform the automated simulation calculations for multi-pass forging. Furthermore, by analyzing the macro-forming as well as temperature, damage, equivalent stress and equivalent sptrain field results of each pass, the potential defects were predicted, and the relative optimal operating speed during the forming process of each pass was obtained. The reliability of the simulation was verified by comparing the forming effect and defects of actual product. The result shows that the feasibility of material parameter calculation using JMatPro and automated forging simulation is proved, and this method can further improve the research and development efficiency of forging process. 

 
基金项目:
科技创新2025重大专项(宁波市重大科技任务攻关项目)(2022Z048)
作者简介:
作者简介:金 晟(1997-),男,硕士研究生 E-mail:js32005035@mail.dlut.edu.cn 通信作者:白 玉(1985-),女,博士,副教授 E-mail:ybai@dlut.edu.cn
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