Numerical and Experimental Study on Nugget Formation in Resistance Spot Welding for High Strength Steel Sheets in Automobile Bodies

Ma, Ninshu; Murakawa, Hidekazu

doi:https://doi.org/10.18910/3585

Numerical and Experimental Study on Nugget Formation in Resistance Spot Welding for High Strength Steel Sheets in Automobile Bodies

Ma, Ninshu; Murakawa, Hidekazu

Transactions of JWRI, 2009, 38(2), 19-24

アクセス数:263件（2025-03-15 16:22 集計）

固定URL: https://doi.org/10.18910/3585

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タイトル	Numerical and Experimental Study on Nugget Formation in Resistance Spot Welding for High Strength Steel Sheets in Automobile Bodies
著者	NRID 1000010263328 1000010263328 ORCID 0000-0002-8088-4154 0000-0002-8088-4154 researchmap permalink ma.ninshu ma.ninshu Scopus Author ID 36343934100 36343934100 著者名 Ma, Ninshu
著者	NRID 1000060166270 1000060166270 著者名 Murakawa, Hidekazu
キーワード等	Spot welding
	Welding conditions
	Nugget Formation
	Simulation
	Experiment
抄録	Resistance spot welding is the most popular joining process in automobile body assembly production lines. There have been many researches concerned with spot welding for two pieces of sheets. In order to reduce the cost and improve the strength of the lightweight automobile bodies, resistance spot welding for multi-pieces of sheets has to be investigated before production. In this paper, resistance spot welding for three pieces of high strength steel sheets is mainly taken as an object and the nugget formation process is firstly investigated by experiments. Then the spot welding process is simulated by FEM program JWRIAN developed by the authors with the coupling of the electrical field, thermal field and mechanical field. The nugget size and its formation process predicted by FEM agree very well with experimental results. Based on the simulation results, weldable conditions (current, cycles and force) of spot welding for both two pieces and three pieces of high strength steel sheets can estimated with a good accuracy.
出版者	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
収録物名	Transactions of JWRI
巻(号)	38(2)
ページ	19-24
刊行年月	2009-12
言語	英語
ハンドルURL	https://hdl.handle.net/11094/3585
DOI	https://doi.org/10.18910/3585
PISSN	03874508
NCID	AA00867058
アクセス権	open access
出版タイプ	Version of Record
カテゴリ	紀要論文 Departmental Bulletin Paper
カテゴリ	Transactions of JWRI / Vol.38 No.2 (2009-12)

資源タイプ	紀要論文
ローカル資源タイプ	紀要論文
DCMI資源タイプ	text
DCTERMS.bibliographicCitation	Transactions of JWRI. 2009, 38(2), p. 19-24
DC.title	Numerical and Experimental Study on Nugget Formation in Resistance Spot Welding for High Strength Steel Sheets in Automobile Bodies
DC.creator	Ma, Ninshu
DC.creator	Murakawa, Hidekazu
DC.publisher	大阪大学接合科学研究所
	オオサカダイガクセツゴウカガクケンキュウジョ
	Joining and Welding Research Institute, Osaka University
DC.language' scheme='DCTERMS.RFC1766	英語
DC.type' scheme='DCTERMS.DCMIType	text
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2009-12
DC.subject	Spot welding
	Welding conditions
	Nugget Formation
	Simulation
	Experiment
DCTERMS.abstract	Resistance spot welding is the most popular joining process in automobile body assembly production lines. There have been many researches concerned with spot welding for two pieces of sheets. In order to reduce the cost and improve the strength of the lightweight automobile bodies, resistance spot welding for multi-pieces of sheets has to be investigated before production. In this paper, resistance spot welding for three pieces of high strength steel sheets is mainly taken as an object and the nugget formation process is firstly investigated by experiments. Then the spot welding process is simulated by FEM program JWRIAN developed by the authors with the coupling of the electrical field, thermal field and mechanical field. The nugget size and its formation process predicted by FEM agree very well with experimental results. Based on the simulation results, weldable conditions (current, cycles and force) of spot welding for both two pieces and three pieces of high strength steel sheets can estimated with a good accuracy.
DC.identifier	10.18910/3585
DC.format	3585
citation_title	Numerical and Experimental Study on Nugget Formation in Resistance Spot Welding for High Strength Steel Sheets in Automobile Bodies
citation_author	Ma, Ninshu
citation_author	Murakawa, Hidekazu
citation_publisher	大阪大学接合科学研究所
citation_language	英語
citation_date	2009-12
citation_journal_title	Transactions of JWRI
citation_volume	38
citation_issue	2
citation_firstpage	19
citation_lastpage	24
citation_public_url	https://hdl.handle.net/11094/3585
citation_doi_detail	10.18910/3585
citation_doi	https://doi.org/10.18910/3585

Numerical and Experimental Study on Nugget Formation in Resistance Spot Welding for High Strength Steel Sheets in Automobile Bodies

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