2219铝合金搅拌摩擦焊温度场的三维实体耦合数值模拟

杜岩峰; 白景彬; 田志杰; 李劲松; 张彦华

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2219铝合金搅拌摩擦焊温度场的三维实体耦合数值模拟

杜岩峰, 白景彬, 田志杰, 李劲松, 张彦华

文章导航 > 焊接学报 > 2014 > 35(8): 57-60,70

杜岩峰, 白景彬, 田志杰, 李劲松, 张彦华. 2219铝合金搅拌摩擦焊温度场的三维实体耦合数值模拟[J]. 焊接学报, 2014, 35(8): 57-60,70.

引用本文:

杜岩峰, 白景彬, 田志杰, 李劲松, 张彦华. 2219铝合金搅拌摩擦焊温度场的三维实体耦合数值模拟[J]. 焊接学报, 2014, 35(8): 57-60,70.

DU Yanfeng, BAI Jingbin, TIAN Zhijie, LI Jinsong, ZHANG Yanhua. Investigation on three-dimensional real coupling numerical simulation of temperature field of friction stir welding of 2219 aluminum alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2014, 35(8): 57-60,70.

Citation:

DU Yanfeng, BAI Jingbin, TIAN Zhijie, LI Jinsong, ZHANG Yanhua. Investigation on three-dimensional real coupling numerical simulation of temperature field of friction stir welding of 2219 aluminum alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2014, 35(8): 57-60,70.

2219铝合金搅拌摩擦焊温度场的三维实体耦合数值模拟

1.
首都航天机械公司, 北京 100076;北京航空航天大学机械工程及自动化学院, 北京 100191
2.
首都航天机械公司, 北京 100076
3.
北京航空航天大学机械工程及自动化学院, 北京 100191

Investigation on three-dimensional real coupling numerical simulation of temperature field of friction stir welding of 2219 aluminum alloy

1.
Capital Aerospace Machinery Company, Beijing 100076, China;School of Mechanical Engineering and Automation, Beijing University of Aeronautics & Astronautics, Beijing 100191, China
2.
Capital Aerospace Machinery Company, Beijing 100076, China
3.
School of Mechanical Engineering and Automation, Beijing University of Aeronautics & Astronautics, Beijing 100191, China

摘要: 为更贴近实际的模拟搅拌摩擦焊焊接过程中复杂的热力行为,试验通过建立三维搅拌摩擦焊过程数学模型,采用三维实体耦合的有限元方法来分析2219铝合金搅拌摩擦焊热过程和温度场分布.结果表明,搅拌摩擦焊焊缝的温度场梯度呈现上密下疏,前密后疏的分布状态,最高温度位于后退侧的搅拌针与轴肩的过渡区,焊缝后退边的温度高于前进边,搅拌针底部温度超过2219铝合金的再结晶温度,可确保对接接头根部形成紧密焊缝,模拟结果为研究搅拌摩擦焊的机理和优化搅拌摩擦焊焊接工艺提供了支持.
- 2219铝合金 /
- 搅拌摩擦焊 /
- 温度场 /
- 数值模拟
Abstract: To make the complicated process of heat and force of friction stir welding to be simulated more close to the actual state, we established the three-dimension mathematical model of stirring friction welding process, and analyzed thermal process and temperature field distribution of friction stir welding of 2219 aluminum alloy by means of the finite element method with 3D coupled model. Numerical simulation results show that, the temperature gradient of weld is different which the upper side is more compact than lower side and the advanced side is more compact than back side. The highest temperature is located at the transition zone of the back side between the stir-pin and the stir-head shoulder, the temperatures on the retreating side is higher than that on the advancing side, and it will be assured of tight weld if the temperatures of the area on the bottom of stir-pin are in excess of the recrystallization temperature of 2219 aluminum alloy when welding. At last, the result will provide a support for based research and technology optimization of friction stir welding.
- 2219 aluminum alloy /
- friction stir welding /
- thermal process /
- numerical simulation

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2219铝合金搅拌摩擦焊温度场的三维实体耦合数值模拟

1. 首都航天机械公司, 北京 100076;北京航空航天大学机械工程及自动化学院, 北京 100191

2. 首都航天机械公司, 北京 100076

3. 北京航空航天大学机械工程及自动化学院, 北京 100191

收稿日期: 2014-03-20

关键词:

2219铝合金 /

搅拌摩擦焊 /

温度场 /

数值模拟

摘要: 为更贴近实际的模拟搅拌摩擦焊焊接过程中复杂的热力行为,试验通过建立三维搅拌摩擦焊过程数学模型,采用三维实体耦合的有限元方法来分析2219铝合金搅拌摩擦焊热过程和温度场分布.结果表明,搅拌摩擦焊焊缝的温度场梯度呈现上密下疏,前密后疏的分布状态,最高温度位于后退侧的搅拌针与轴肩的过渡区,焊缝后退边的温度高于前进边,搅拌针底部温度超过2219铝合金的再结晶温度,可确保对接接头根部形成紧密焊缝,模拟结果为研究搅拌摩擦焊的机理和优化搅拌摩擦焊焊接工艺提供了支持.

English Abstract

Investigation on three-dimensional real coupling numerical simulation of temperature field of friction stir welding of 2219 aluminum alloy

1. Capital Aerospace Machinery Company, Beijing 100076, China;School of Mechanical Engineering and Automation, Beijing University of Aeronautics & Astronautics, Beijing 100191, China

2. Capital Aerospace Machinery Company, Beijing 100076, China

3. School of Mechanical Engineering and Automation, Beijing University of Aeronautics & Astronautics, Beijing 100191, China

Received Date: 2014-03-20

Keywords:

Abstract: To make the complicated process of heat and force of friction stir welding to be simulated more close to the actual state, we established the three-dimension mathematical model of stirring friction welding process, and analyzed thermal process and temperature field distribution of friction stir welding of 2219 aluminum alloy by means of the finite element method with 3D coupled model. Numerical simulation results show that, the temperature gradient of weld is different which the upper side is more compact than lower side and the advanced side is more compact than back side. The highest temperature is located at the transition zone of the back side between the stir-pin and the stir-head shoulder, the temperatures on the retreating side is higher than that on the advancing side, and it will be assured of tight weld if the temperatures of the area on the bottom of stir-pin are in excess of the recrystallization temperature of 2219 aluminum alloy when welding. At last, the result will provide a support for based research and technology optimization of friction stir welding.

杜岩峰, 白景彬, 田志杰, 李劲松, 张彦华. 2219铝合金搅拌摩擦焊温度场的三维实体耦合数值模拟[J]. 焊接学报, 2014, 35(8): 57-60,70.

引用本文:

杜岩峰, 白景彬, 田志杰, 李劲松, 张彦华. 2219铝合金搅拌摩擦焊温度场的三维实体耦合数值模拟[J]. 焊接学报, 2014, 35(8): 57-60,70.

Citation:

DU Yanfeng, BAI Jingbin, TIAN Zhijie, LI Jinsong, ZHANG Yanhua. Investigation on three-dimensional real coupling numerical simulation of temperature field of friction stir welding of 2219 aluminum alloy[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2014, 35(8): 57-60,70.

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2219铝合金搅拌摩擦焊温度场的三维实体耦合数值模拟

Investigation on three-dimensional real coupling numerical simulation of temperature field of friction stir welding of 2219 aluminum alloy

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2219铝合金搅拌摩擦焊温度场的三维实体耦合数值模拟

1. 首都航天机械公司, 北京 100076;北京航空航天大学机械工程及自动化学院, 北京 100191 2. 首都航天机械公司, 北京 100076 3. 北京航空航天大学机械工程及自动化学院, 北京 100191

English Abstract

Investigation on three-dimensional real coupling numerical simulation of temperature field of friction stir welding of 2219 aluminum alloy

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目录

1. 首都航天机械公司, 北京 100076;北京航空航天大学机械工程及自动化学院, 北京 100191

2. 首都航天机械公司, 北京 100076

3. 北京航空航天大学机械工程及自动化学院, 北京 100191