FEM Research on Welding Thermal Deformation of Copper Alloy Sheet and Optimization of Welding Sequence

To reduce the residual stress and deformation of the copper alloy sheet after welding, and improve the welding quality of the copper alloy sheet, the finite element method (FEM) research on welding thermal deformation and welding sequence optimization was carried out. First, a finite element model o...

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Autores principales:	Mingxin Yuan, Suodong Liu, Hongwei Sun, Yunqiang Gao, Xianling Dai, Weibin Chen
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	copper alloy sheet welding heat distortion residual stress welding sequence optimization Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/1dd7b2173ed74a9bb1c3f4ed33c45d39
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spelling	oai:doaj.org-article:1dd7b2173ed74a9bb1c3f4ed33c45d392021-11-25T17:15:36ZFEM Research on Welding Thermal Deformation of Copper Alloy Sheet and Optimization of Welding Sequence10.3390/coatings111112872079-6412https://doaj.org/article/1dd7b2173ed74a9bb1c3f4ed33c45d392021-10-01T00:00:00Zhttps://www.mdpi.com/2079-6412/11/11/1287https://doaj.org/toc/2079-6412To reduce the residual stress and deformation of the copper alloy sheet after welding, and improve the welding quality of the copper alloy sheet, the finite element method (FEM) research on welding thermal deformation and welding sequence optimization was carried out. First, a finite element model of copper alloy sheet welding was established based on ANSYS, the mechanical property parameters of the model at high temperature were determined, and the thermal–structural coupling calculation was performed on the model. Then, the change trend and magnitude of the residual stress and deformation of the model after welding were analyzed. Finally, different welding sequence schemes were designed, and numerical simulation calculations were carried out. The results of the welding sequence solution show that the change trend of the residual stress after welding of the base metal under different welding sequences is basically the same; repeated heating of the base metal at the same position causes large residual stress; the weldment vertical plate is subjected to opposing forces in the x-axis and y-axis directions at the same time. Among four welding schemes, the welding scheme that alternately welds symmetrically from the start and end positions of the weld seam to the middle position of the plate causes the least welding deformation. Compared with the other three schemes, its deformation reduces by 26.6%, 18.3%, and 19.4%, respectively.Mingxin YuanSuodong LiuHongwei SunYunqiang GaoXianling DaiWeibin ChenMDPI AGarticlecopper alloy sheetwelding heat distortionresidual stresswelding sequenceoptimizationEngineering (General). Civil engineering (General)TA1-2040ENCoatings, Vol 11, Iss 1287, p 1287 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	copper alloy sheet welding heat distortion residual stress welding sequence optimization Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	copper alloy sheet welding heat distortion residual stress welding sequence optimization Engineering (General). Civil engineering (General) TA1-2040 Mingxin Yuan Suodong Liu Hongwei Sun Yunqiang Gao Xianling Dai Weibin Chen FEM Research on Welding Thermal Deformation of Copper Alloy Sheet and Optimization of Welding Sequence
description	To reduce the residual stress and deformation of the copper alloy sheet after welding, and improve the welding quality of the copper alloy sheet, the finite element method (FEM) research on welding thermal deformation and welding sequence optimization was carried out. First, a finite element model of copper alloy sheet welding was established based on ANSYS, the mechanical property parameters of the model at high temperature were determined, and the thermal–structural coupling calculation was performed on the model. Then, the change trend and magnitude of the residual stress and deformation of the model after welding were analyzed. Finally, different welding sequence schemes were designed, and numerical simulation calculations were carried out. The results of the welding sequence solution show that the change trend of the residual stress after welding of the base metal under different welding sequences is basically the same; repeated heating of the base metal at the same position causes large residual stress; the weldment vertical plate is subjected to opposing forces in the x-axis and y-axis directions at the same time. Among four welding schemes, the welding scheme that alternately welds symmetrically from the start and end positions of the weld seam to the middle position of the plate causes the least welding deformation. Compared with the other three schemes, its deformation reduces by 26.6%, 18.3%, and 19.4%, respectively.
format	article
author	Mingxin Yuan Suodong Liu Hongwei Sun Yunqiang Gao Xianling Dai Weibin Chen
author_facet	Mingxin Yuan Suodong Liu Hongwei Sun Yunqiang Gao Xianling Dai Weibin Chen
author_sort	Mingxin Yuan
title	FEM Research on Welding Thermal Deformation of Copper Alloy Sheet and Optimization of Welding Sequence
title_short	FEM Research on Welding Thermal Deformation of Copper Alloy Sheet and Optimization of Welding Sequence
title_full	FEM Research on Welding Thermal Deformation of Copper Alloy Sheet and Optimization of Welding Sequence
title_fullStr	FEM Research on Welding Thermal Deformation of Copper Alloy Sheet and Optimization of Welding Sequence
title_full_unstemmed	FEM Research on Welding Thermal Deformation of Copper Alloy Sheet and Optimization of Welding Sequence
title_sort	fem research on welding thermal deformation of copper alloy sheet and optimization of welding sequence
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1dd7b2173ed74a9bb1c3f4ed33c45d39
work_keys_str_mv	AT mingxinyuan femresearchonweldingthermaldeformationofcopperalloysheetandoptimizationofweldingsequence AT suodongliu femresearchonweldingthermaldeformationofcopperalloysheetandoptimizationofweldingsequence AT hongweisun femresearchonweldingthermaldeformationofcopperalloysheetandoptimizationofweldingsequence AT yunqianggao femresearchonweldingthermaldeformationofcopperalloysheetandoptimizationofweldingsequence AT xianlingdai femresearchonweldingthermaldeformationofcopperalloysheetandoptimizationofweldingsequence AT weibinchen femresearchonweldingthermaldeformationofcopperalloysheetandoptimizationofweldingsequence
_version_	1718412576107266048

FEM Research on Welding Thermal Deformation of Copper Alloy Sheet and Optimization of Welding Sequence

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