金属热处理 ›› 2023, Vol. 48 ›› Issue (4): 229-234.DOI: 10.13251/j.issn.0254-6051.2023.04.036

• 数值模拟 • 上一篇    下一篇

基于热处理模拟仿真的超高强度钢制复杂零件构型优化与验证

马蓼奕1, 慈言海2, 李世键1, 杨立新1, 刘刚1, 崔晶1   

  1. 1.沈阳飞机工业集团有限公司, 辽宁 沈阳 110034;
    2.空军装备部驻沈阳地区军事代表局驻沈阳地区第一军事代表室, 辽宁 沈阳 110034
  • 收稿日期:2022-10-08 修回日期:2023-01-10 发布日期:2023-05-27
  • 作者简介:马蓼奕(1996—),男,助理工程师,主要研究方向为钢及钛合金热处理畸变控制及模拟仿真,E-mail:yiluma@163.com

Optimization and verification of configuration of complex parts produced by ultra-high strength steel based on heat treatment simulation

Ma Luyi1, Ci Yanhai2, Li Shijian1, Yang Lixin1, Liu Gang1, Cui Jing1   

  1. 1. Shenyang Aircraft Corporation, Shenyang Liaoning 110034, China;
    2. The First Military Representative Office in Shenyang of the Military Representative Office of the AirForce Equipment Department, Shenyang Liaoning 110034, China
  • Received:2022-10-08 Revised:2023-01-10 Published:2023-05-27

摘要: 某超高强度钢制航空零件初始构型复杂,热处理后关键部位畸变量不能满足设计要求(±1 mm)。针对此问题,采用模拟仿真手段,研究了零件不同构型状态下的热处理畸变。结果表明,零件初始构型整体冷却先快后慢,厚壁部分应力较大,薄壁部分应力相对较小,尾部畸变最大,达2.16 mm。通过反复迭代优化零件有限元模型,模拟结果显示关键部位最大畸变量由最初的2.16 mm减少至0.90 mm,最终获得优化的零件构型。基于优化后的构型在实际生产中对零件进行了验证,零件各特征点实际畸变量均满足设计要求,模拟结果与实际生产结果吻合良好,证明了所建有限元模型的准确性及热处理模拟仿真技术在零件构型状态优化过程中的有效性。

关键词: 超高强度钢, 复杂零件, 畸变, 模拟仿真, 构型优化

Abstract: Key parts' distortion of an ultra-high strength steel aviation part cannot meet the design requirements (±1 mm) after heat treatment due to its complex initial configuration. To solve this problem, the heat treatment distortion of parts in different configurations was studied by means of simulation. The results show that the overall cooling of the initial configuration of the part is first fast and then slow, with higher stresses in the thick-walled part and relatively low stresses in the thin-walled part, and the largest distortion of 2.16 mm in the tail. Through iterative optimization of the finite element model, the simulation results show that the maximum distortion of the critical part is reduced from 2.16 mm to 0.90 mm, and the optimized part configuration is finally obtained. Based on the optimized configuration, the part is verified in actual production, and the actual distortion of each feature point of the part meets the design requirements, and the simulation results match well with the actual production results, which verifies the accuracy of the constructed finite element model and the effectiveness of the heat treatment simulation technology in the optimization of the configuration state.

Key words: ultra-high strength steel, complex parts, distortion, simulation, configuration optimization

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