| 6061-T6铝合金MIG焊接头微区拉伸性能表征及接头拉伸性能的有限元仿真 |
| |
| 引用本文： | 王前进,徐从昌,李佳,许红,何洪,李落星. 6061-T6铝合金MIG焊接头微区拉伸性能表征及接头拉伸性能的有限元仿真[J]. 机械工程材料, 2021, 45(3): 76-82. DOI: 10.11973/jxgccl202103015 |
| |
| 作者姓名： | 王前进 徐从昌 李佳 许红 何洪 李落星 |
| |
| 作者单位： | 湖南大学机械与运载工程学院, 汽车车身先进设计制造国家重点实验室, 长沙 410082;重庆长安汽车股份有限公司, 重庆 420023;重庆长安汽车股份有限公司, 重庆 420023 |
| |
| 基金项目： | 国家自然科学基金资助项目;国家重点研发计划项目 |
| |
| 摘 要： | 建立了6061-T6铝合金MIG焊接接头微区拉伸性能测试的高精度等效试验方法;采用有限元模拟了焊接过程的温度变化情况,建立了温度与接头各微区拉伸性能的关系;获得了可表征接头各微区材料性能的参数,验证了将接头等效为不同热状态材料所建立的精细模型对接头性能预测的可靠性.结果表明:微区温度场、焊缝熔池形貌和拉伸性能的仿真模拟...
|
| 关 键 词： | 热影响微区 温度分布 拉伸性能 有限元仿真 |
Tensile Properties Characterization of Micro-zone of 6061-T6 Aluminum Alloy MIG Welded Joint and Finite Element Simulation of Tensile Properties of Joint |
| |
| WANG Qianjin,XU Congchang,LI Jia,XU Hong,HE Hong,LI Luoxing. Tensile Properties Characterization of Micro-zone of 6061-T6 Aluminum Alloy MIG Welded Joint and Finite Element Simulation of Tensile Properties of Joint[J]. Materials For Mechanical Engineering, 2021, 45(3): 76-82. DOI: 10.11973/jxgccl202103015 |
| |
| Authors: | WANG Qianjin XU Congchang LI Jia XU Hong HE Hong LI Luoxing |
| |
| Affiliation: | (State Key Laboratory of Advanced Design and Manufacturing for Automobie Body,School of Mechanical and Vehicle Engineering,Huanan University,Changsha 410082,China;Chongqing Changan Atuomobile Co.,Ltd.,Chongqing 420023,China) |
| |
| Abstract: | A high precision equivalent experimental method for measuring micro-zone tensile properties of 6061-T6 aluminum alloy MIG welded joint was established.The temperature changed during the welding process was simulated by finite element,and relationship between temperature and tensile properties of joint micro-zone was established.The parameters that could characterize properties of each micro-zone material of joint was obtained,and verified that joint was equivalent to materials in different thermal states to established the fine model for predicting the properties of joint was reliability.The results show that the simulation of the temperature field,weld pool morphology and tensile properties were in good agreement with the experimental results.The error of the peak force between simulation by eguivalent weld joint and experiment was only 0.1%,and the displacement error of fracture failure was only 5.7%.The heat affected zone grid was divided into different thermal state materials on the basis of temperature distribution could effectively predict tensile properties of weld joint. |
| |
| Keywords: | heat affected micro-zone temperature distribution tensile property finite element simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
