Visualizations and Predictions of Welding Arcs

Tanaka, Manabu; Tashiro, Shinichi; Tsujimura, Yoshihiro

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タイトル	Visualizations and Predictions of Welding Arcs
著者	Tanaka, Manabu Tanaka, Manabu
	Tashiro, Shinichi Tashiro, Shinichi
	Tsujimura, Yoshihiro Tsujimura, Yoshihiro
キーワード等	Arc
	Plasma
	Metal vapor
	Spectroscopic analysis
	Numerical calculation
	GMA
	Welding
抄録	This paper gives an instance of recent progress which has led to the capability of the visualization and prediction of welding arcs, though the dynamic observations of spectral image by a high speed digital video camera with a monochromator and also the calculations by numerical models. The dynamic observations lead to visualizations of metal vapor behavior in arc plasma and, for example, show the temperature minima at arc axis in GMA welding. Finally, we discuss plasma physics in welding arcs through numerical calculations, using the basic conservation equations of mass, energy, momentum, current and electron density of plasma physics. There is close interaction between the electrode, the arc plasma, the weld pool, and also the metal vapor, which constitute the welding process, and must be considered as a unified system.
公開者	大阪大学接合科学研究所
公開者の別表記	Joining and Welding Research Institute, Osaka University
公開者 (ヨミ)	オオサカダイガクセツゴウカガクケンキュウジョ
掲載誌名	Transactions of JWRI
巻	41
号	2
開始ページ	1
終了ページ	5
刊行年月	2012-12
ISSN	03874508
NCID	AA00867058
URL	http://hdl.handle.net/11094/24862
言語	英語
カテゴリ	紀要論文 Departmental Bulletin Paper
カテゴリ	Transactions of JWRI / Vol.41 No.2 (2012-12)

著者版フラグ	publisher
NII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.41(2) P.1-P.5
DC.title	Visualizations and Predictions of Welding Arcs
DC.creator	Tanaka, Manabu
	Tashiro, Shinichi
	Tsujimura, Yoshihiro
DC.publisher	大阪大学接合科学研究所
DC.language" scheme="DCTERMS.RFC1766	英語
DCTERMS.issued" scheme="DCTERMS.W3CDTF	2012-12
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/24862
DC.subject	Arc
	Plasma
	Metal vapor
	Spectroscopic analysis
	Numerical calculation
	GMA
	Welding
DCTERMS.abstract	This paper gives an instance of recent progress which has led to the capability of the visualization and prediction of welding arcs, though the dynamic observations of spectral image by a high speed digital video camera with a monochromator and also the calculations by numerical models. The dynamic observations lead to visualizations of metal vapor behavior in arc plasma and, for example, show the temperature minima at arc axis in GMA welding. Finally, we discuss plasma physics in welding arcs through numerical calculations, using the basic conservation equations of mass, energy, momentum, current and electron density of plasma physics. There is close interaction between the electrode, the arc plasma, the weld pool, and also the metal vapor, which constitute the welding process, and must be considered as a unified system.
citation_title	Visualizations and Predictions of Welding Arcs
citation_author	Tanaka, Manabu
	Tashiro, Shinichi
	Tsujimura, Yoshihiro
citation_publisher	大阪大学接合科学研究所
citation_language	英語
citation_date	2012-12
citation_journal_title	Transactions of JWRI
citation_volume	41
citation_issue	2
citation_firstpage	1
citation_lastpage	5
citation_issn	03874508
citation_public_url	http://hdl.handle.net/11094/24862
citation_keywords	Arc
	Plasma
	Metal vapor
	Spectroscopic analysis
	Numerical calculation
	GMA
	Welding

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