金属热处理 ›› 2022, Vol. 47 ›› Issue (10): 258-262.DOI: 10.13251/j.issn.0254-6051.2022.10.044

• 数值模拟 • 上一篇    下一篇

基于DEFORM的U型截面铝合金锻件淬火入水方式对残余应力的影响

龙帅1, 周杰2, 吴道祥3, 王姝俨3   

  1. 1.重庆科技学院 冶金与材料工程学院, 重庆 401331;
    2.重庆大学 材料科学与工程学院, 重庆 400044;
    3.西南铝业(集团)有限责任公司, 重庆 401326
  • 收稿日期:2022-05-06 修回日期:2022-08-11 出版日期:2022-10-25 发布日期:2022-12-15
  • 作者简介:龙 帅(1991—),男,讲师,博士,主要研究方向为航空铝合金成形制造及仿真,E-mail: longshuai@cqust.edu.cn
  • 基金资助:
    重庆市自然科学基金面上项目(cstc2021jcyj-msxmX0653);重庆市教委科技项目(KJQN202101515);重庆科技学院科研资助项目(CKRC2020015)

Influence of water-entering mode on residual stress during quenching for U-section aluminum alloy forging based on DEFORM

Long Shuai1, Zhou Jie2, Wu Daoxiang3, Wang Shuyan3   

  1. 1. School of Metallurgy and Materials Engineering, Chongqing University of Science and Technology, Chongqing 401331, China;
    2. School of Materials Science and Engineering, Chongqing University, Chongqing 400044, China;
    3. Southwest Aluminum Co., Ltd., Chongqing 401326, China
  • Received:2022-05-06 Revised:2022-08-11 Online:2022-10-25 Published:2022-12-15

摘要: 采用DEFORM软件对U型截面铝合金锻件固溶后淬火入水方式进行了数值模拟分析,研究了4种入水姿态和自由落体、5 m/s及2 m/s的入水速度对锻件温度场和残余应力的影响规律。结果表明,锻件入水姿态和入水速度对残余应力的影响显著,该锻件以U型面旋转90°姿态和自由落体入水时,残余应力值最小且分布最均匀。

关键词: U型截面锻件, 铝合金, 淬火, 入水方式, 残余应力

Abstract: Water-entering modes during quenching for a U-shape sectioned aluminum alloy forging after solution treatment were simulated and analyzed based on DEFORM software. The influence of four different water-entering modes of the forging and water-entering speeds of free-falling, 5 m/s and 2 m/s on the temperature field and residual stress was studied. The results reveal that the water-entering mode and speed of the forging dramatically influence the residual stress. When the forging is rotated 90° in U-face and free falls into water, the residual stress is the smallest and most evenly distributed.

Key words: U-section forging, aluminum alloy, quenching, water-entering mode, residual stress

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