Simulation and Microstructure Study of Resistance Slant Butt Welding for Aluminum Alloy

WU Qinglong; LI Yingzhe; BI Yuanbo; GUO Jing; LUO Zhen

doi:10.7512/j.issn.1001-2303.2024.08.11

Welding Virtual Simulation | Views : 0 下载量: 4 CSCD: 0

PDF
Export
Share
Collection
Album

Simulation and Microstructure Study of Resistance Slant Butt Welding for Aluminum Alloy
Vol. 54, Issue 8, Pages: 83-89(2024)
Published： 25 August 2024 ，
DOI： 10.7512/j.issn.1001-2303.2024.08.11
稿件说明：

扫描看全文

武庆龙，李英哲，毕元波，等.铝合金的电阻对接点焊模拟仿真与组织研究［J］.电焊机，2024，54（8）：83-89.

WU Qinglong, LI Yingzhe, BI Yuanbo, GUO Jing, LUO Zhen.Simulation and Microstructure Study of Resistance Slant Butt Welding for Aluminum Alloy[J].Electric Welding Machine, 2024, 54(8): 83-89.
武庆龙，李英哲，毕元波，等.铝合金的电阻对接点焊模拟仿真与组织研究［J］.电焊机，2024，54（8）：83-89. DOI： 10.7512/j.issn.1001-2303.2024.08.11.

WU Qinglong, LI Yingzhe, BI Yuanbo, GUO Jing, LUO Zhen.Simulation and Microstructure Study of Resistance Slant Butt Welding for Aluminum Alloy[J].Electric Welding Machine, 2024, 54(8): 83-89. DOI： 10.7512/j.issn.1001-2303.2024.08.11.

摘要

利用Abaqus软件建立了厚度为4 mm的5052铝合金电阻斜坡对接焊过程的有限元模型，在相同参数下设计了工艺试验。分析了在不同的焊接工艺参数下，电阻斜坡对接焊的熔核形成过程与焊接过程的电场、温度场的关系，并通过对比金相试样与有限元模型运算结果验证了模型的准确性。结果表明：电阻斜坡对接焊的熔核为沿接触面生长的椭球形，工件厚度对熔核的生长方向起到了一定的导向作用，同时由于铝合金材料属性与焊接结构的不同，在焊接初期在下电极轴心处形成了一片电流集中区域。同时讨论了电流的最小压降原理在斜坡对接中的作用机理，为进一步研究电阻偏心点焊焊接过程积累基础科学数据。

Abstract

A finite element model of resistance ramp butt welding process of 5052 aluminum alloy with thickness of 4 mm was established by Abaqus

and the process test was designed under the same parameters. The relationship between the formation process of the welding nugget and the electric field and temperature field during the welding process under different welding process parameters was analyzed. The accuracy of the model was verified by comparing the metallographic samples with the results of the finite element model calculations. The results show that the welding nugget of resistance slant butt welding is an ellipsoidal shape that grows along the contact surface

and the thickness of the workpiece plays a certain guiding role in the growth direction of the nugget. At the same time

due to the different material properties of aluminum alloy and welding structure

a current concentration area was formed at the center of the lower electrode in the early stage of welding. The role mechanism of the minimum voltage drop principle in slant butt welding is also discussed

providing basic scientific data for further study of the resistance eccentric spot welding process.

关键词

斜坡对接焊5052铝合金熔核生长有限元模拟

Keywords

CFRPcoaxial one-side resistance spot weldingnumerical analysistemperature fieldwelding parameters

references

He X C，Gu F S，Ball A D. A review of numerical analysis of friction stir welding［J］. Progress in Materials Science，2014，65：1-66．

He X C. Finite element analysis of laser welding：a state of art review［J］. Materials and Manufacturing Processes，2012，27（12）：1354-1365．

Xing B Y，He X C，Wang Y Q，et al. Study of mechanical properties for copper alloy H62 sheets jointed by self-piercing riveting and clinching［J］. Journal of Materials Processing Technology，2014，216：28-36．

Jafari M，Araee A，Senkara J，et al. Experimental and numerical analysis of shunting effect in resistance spot welding of Al2219sheets［J］. Bulletin of the Polish Academy of Sciences Technical Sciences，2016，64（2）：425-434．

中国国家标准化管理委员会中华人民共和国国家质量监督检验检疫总局. GB/T 6417.2-2005 金属压力焊接头缺欠分类及说明［S］. 北京：中国标准出版社，2005.

中国特种设备检测研究院，中国石化工程建设公司，清华大学，等. GB150.3-2011压力容器第三部分：设计［S］. 北京：中国标准出版社，2012：208-210.

王维斌. 超细晶粒钢直流电阻闪光对焊过程数值模拟及接头组织性能预测［D］. 北京：北京工业大学， 2003：36-38.

WANG W B. Numerical simulation of DC resistance flash butt welding process of ultra-fine grain steel and prediction of joint microstructure properties［D］. Beijing： Beijing University of Technology，2003：36-38.

李海权. Q235钢闪光焊温度场分析和焊接接头性能研究［D］. 广东：华南理工大学，2012：44-49.

LI H Q. Analysis of temperature field in flash welding of Q235 steel and study on properties of welded joints ［D］. Guangzhou： South China University of Technology，2012：44-49.

洪小英. 5052铝合金连续铸轧过程温度场与速度场的模拟［J］. 热加工工艺，2015，44（15）：84-86.

HONG X Y. Numerical simulation of temperature and velocity field in continuous cast rolling process of 5052aluminum alloy［J］. Hot Working Technology，2015，44（15）：84-86.

黄伯云. 有色金属材料手册［M］. 北京：化学工业出版社，2009：110-112.

彭健，王永建，钟丽萍，等. 5052铝合金板材热轧过程塑性变形及应力分布的三维热力耦合模拟［J］. 材料热处理学报，2015，36（3）：209-213.

PENG J，WANG Y J，ZHONG L P，et al. Three dimensional thermal mechanical coupled simulation of plastic deformation and stress distribution during hot rolling of 5052aluminum sheet［J］. Transactions of Materials and Heat Treatment，2015，36（3）：209-213.

KAMMER C. 铝手册［M］. 卢惠民译. 北京：化学工业出版社，2009：58-60.

杜慧敏，罗震，敖三三，等. 5052铝合金电阻点焊电极形状对电极寿命的影响［J］. 上海交通大学学报，2019，53（6）：708-712.

DU H M，LUO Z，AO S S，et al. Influence of electrode Shape on electrode life of 5052 aluminum alloy resistance spot welding［J］. Journal of Shanghai Jiao Tong University，2019，53（6）：708-712.

Alert me when the article has been cited

提交

暂无数据