一次爆炸焊接制备铝/镁/铝合金复合板的数值模拟

doi:10.3901/JME.2019.14.037

机械工程学报 ›› 2019, Vol. 55 ›› Issue (14): 37-42.doi: 10.3901/JME.2019.14.037

一次爆炸焊接制备铝/镁/铝合金复合板的数值模拟

魏屹^1,2,3, 王永祯², 王文先^1,2,3, 张婷婷^1,2,3, 闫志峰^1,2,3

1. 先进镁基材料山西省重点实验室太原 030024;
2. 太原理工大学材料科学与工程学院太原 030024;
3. 新材料界面科学与工程省部共建教育部重点实验室太原 030024

收稿日期:2018-09-21 修回日期:2019-03-28 出版日期:2019-07-20 发布日期:2019-07-20
通讯作者: 王永祯(通信作者),男,1968年出生,教授,博士研究生导师。主要研究方向为树脂材料改性及其光造型、石墨烯能源材料的结构表征技术。E-mail:wyz1231@126.com
作者简介:魏屹,男,1992年出生。主要研究方向为镁基材料爆炸焊接。E-mail:651928434@qq.com
基金资助:
国家自然科学基金（51375328、51805359）和中国博士后科学基金面上项目（2018M631772）资助项目。

Numerical Simulation of Al/Mg/Al Composite Plates Fabricated by Explosive Welding in One Stage

WEI Yi^1,2,3, WANG Yongzhen², WANG Wenxian^1,2,3, ZHANG Tingting^1,2,3, YAN Zhifeng^1,2,3

1. Shanxi Key Laboratory of Advanced Magnesium-based Materials, Taiyuan 030024;
2. College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan 030024;
3. Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Taiyuan 030024

Received:2018-09-21 Revised:2019-03-28 Online:2019-07-20 Published:2019-07-20

摘要/Abstract

摘要： 爆炸焊接过程具有瞬时、极速和复杂物理化学反应的特点，数值模拟是一种重要且有效指导和优化爆炸焊接试验的方法。提出一次爆炸焊接方法制备铝/镁/铝合金复合板，采用SEM和EDS表征复合板结合界面形貌及组织成分，研究发现铝/镁/铝合金复合板界面形成明显的波形界面，且结合界面处发生明显的扩散行为。通过数值模拟的方法分析爆炸焊接过程中复合板界面的应力应变场分布和温度场分布，结果表明复合板结合界面的连接机理是压力焊、熔化焊和扩散焊综合作用的结果。所得结果有利于指导一次爆炸焊接成型制备多层复合板及连接界面结合机理的研究。

关键词: 爆炸焊接, 连接机理, 铝/镁/铝复合板, 数值模拟

Abstract: Explosive welding has characteristics of instantaneous, rapid and complicated reactions. The numerical simulation is important and effective method to research explosive welding. The method of explosive welding in one stage is used to fabricate the Al/Mg/Al composite plates. The SEM and EDS are adopted to research the morphology and the component of interface. The bonding interface presents a periodical wave and the diffusion phenomena is detected at interface. The bonding interface has serious plastic deformation because the serious pressure on the interface in the processes of explosive welding. The numerical simulation tests are used to research the distribution of temperature, stress and strain in the processes of explosive welding. The temperature at the interface is much more than the melting points of AZ31B and 6061. The results show that the bonding mechanism is interaction of pressure welding, diffusion welding and local melting welding. The research of explosive welding in one stage and the bonding mechanism of interface can be guided.

Key words: Al/Mg/Al composite plates, bonding mechanism, explosive welding, numerical simulation tests

中图分类号:

TG156

魏屹, 王永祯, 王文先, 张婷婷, 闫志峰. 一次爆炸焊接制备铝/镁/铝合金复合板的数值模拟[J]. 机械工程学报, 2019, 55(14): 37-42.

WEI Yi, WANG Yongzhen, WANG Wenxian, ZHANG Tingting, YAN Zhifeng. Numerical Simulation of Al/Mg/Al Composite Plates Fabricated by Explosive Welding in One Stage[J]. Journal of Mechanical Engineering, 2019, 55(14): 37-42.

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一次爆炸焊接制备铝/镁/铝合金复合板的数值模拟

Numerical Simulation of Al/Mg/Al Composite Plates Fabricated by Explosive Welding in One Stage

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