2A14铝合金构件淬火过程的数值模拟及试验验证

doi:10.13251/j.issn.0254-6051.2024.04.036

金属热处理 ›› 2024, Vol. 49 ›› Issue (4): 223-228.DOI: 10.13251/j.issn.0254-6051.2024.04.036

2A14铝合金构件淬火过程的数值模拟及试验验证

邓肖峰¹, 杨宇辰², 石伟²

1.北京卫星制造厂有限公司, 北京 100080;
2.清华大学机械工程系, 北京 100084

收稿日期:2023-04-19 修回日期:2024-01-08 出版日期:2024-04-25 发布日期:2024-05-27
通讯作者: 石伟,副教授,博士,E-mail: shiw@mail.tsinghua.edu.cn
作者简介:邓肖峰(1995—),男,硕士,主要研究方向为铝合金热处理建模与数值模拟,E-mail:akita_deng@qq.com。
基金资助:
国家国际科技合作专项(2014DFG72020)

Numerical simulation and experimental verification for quenching process of 2A14 aluminum alloy components

Deng Xiaofeng¹, Yang Yuchen², Shi Wei²

1. Spacecrafts Co., Ltd., Beijing 100080, China;
2. Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China

Received:2023-04-19 Revised:2024-01-08 Online:2024-04-25 Published:2024-05-27

摘要/Abstract

摘要： 为了预测2A14铝合金大型构件淬火后的残余应力与变形,采用热膨胀试验、高温拉伸试验和材料计算方法,建立了2A14铝合金淬火过程材料模型。基于在线测量2A14铝合金淬火过程的温度变化数据和XRD测量淬火后的残余应力数值,通过反传热法计算了C形环试样淬火过程的表面换热系数,并通过模拟计算了C形环试样淬火过程的温度、应力和开口距离变化。结果表明,淬火后C形环开口距离增加量的仿真计算结果为0.1158 mm,实际测量结果为0.1657 mm。仿真计算结果与实测结果吻合。

关键词: 淬火, 反传热计算, 残余应力, 2A14铝合金

Abstract: In order to predict the residual stress and deformation of 2A14 aluminum alloy after quenching, a material model of the 2A14 aluminum alloy during quenching was established with thermal expansion test, high temperature tensile test and material computation method. Based on the on-line measured temperature change during quenching process and the residual stress value after quenching measured by XRD, the surface heat transfer coefficient of the C-ring specimen during quenching was calculated by inverse heat transfer method, and the changes of the temperature, stress and opening distance of the C-ring during quenching process were simulated and calculated. The simulation results shows that the increase of the opening distance of the C-ring after quenching is 0.1158 mm, and the actual measurement is 0.1657 mm, which show that the calculated results are in good agreement with the measured results.

Key words: quenching, inverse heat transfer calculation, residual stress, 2A14 aluminum alloy

中图分类号:

TG166.3

邓肖峰, 杨宇辰, 石伟. 2A14铝合金构件淬火过程的数值模拟及试验验证[J]. 金属热处理, 2024, 49(4): 223-228.

Deng Xiaofeng, Yang Yuchen, Shi Wei. Numerical simulation and experimental verification for quenching process of 2A14 aluminum alloy components[J]. Heat Treatment of Metals, 2024, 49(4): 223-228.

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2A14铝合金构件淬火过程的数值模拟及试验验证

Numerical simulation and experimental verification for quenching process of 2A14 aluminum alloy components

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