Dynamic Behavior of Metal Vapor in Arc Plasma during TIG Welding

Tanaka, Manabu; Tashiro, Shinichi; Tsujimura, Yoshihiro

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タイトル	Dynamic Behavior of Metal Vapor in Arc Plasma during TIG Welding
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
	TIG
	Welding
抄録	In the present paper, the mechanism of metal vapor in arc plasma is discussed through the dynamic observation of spectra of helium, chromium, manganese and iron during stationary TIG welding of stainless steel. Wavelengths from 400 nm to 700 nm are observed by a monochromator with a diffraction grating. Radiation from the arc is sent to the nomochromator through optical lens and spectroscopic images are captured with 500 fps by a high-speed digital video-camera. Spectra of metal elements exist locally in the arc plasma due to dependence of plasma temperature and also intensive region of each metal spectrum depends on kinds of metal elements. The most part of metal vapor produced from the weld pool surface are carried on the cathode jet and then are swept away towards surroundings of the arc. However, if the driving force like diffusion in plasma is large, some metal elements can get across the cathode jet and then can be carried on the circulation flow towards tungsten electrode.
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	1
開始ページ	1
終了ページ	6
刊行年月	2012-06
ISSN	03874508
NCID	AA00867058
URL	http://hdl.handle.net/11094/23159
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.1 (2012-06)

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(1) P.1-P.6
DC.title	Dynamic Behavior of Metal Vapor in Arc Plasma during TIG Welding
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	2012-06
DC.identifier" scheme="DCTERMS.URI	http://hdl.handle.net/11094/23159
DC.subject	Arc
	Plasma
	Metal vapor
	Spectroscopic analysis
	TIG
	Welding
DCTERMS.abstract	In the present paper, the mechanism of metal vapor in arc plasma is discussed through the dynamic observation of spectra of helium, chromium, manganese and iron during stationary TIG welding of stainless steel. Wavelengths from 400 nm to 700 nm are observed by a monochromator with a diffraction grating. Radiation from the arc is sent to the nomochromator through optical lens and spectroscopic images are captured with 500 fps by a high-speed digital video-camera. Spectra of metal elements exist locally in the arc plasma due to dependence of plasma temperature and also intensive region of each metal spectrum depends on kinds of metal elements. The most part of metal vapor produced from the weld pool surface are carried on the cathode jet and then are swept away towards surroundings of the arc. However, if the driving force like diffusion in plasma is large, some metal elements can get across the cathode jet and then can be carried on the circulation flow towards tungsten electrode.
citation_title	Dynamic Behavior of Metal Vapor in Arc Plasma during TIG Welding
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	2012-06
citation_journal_title	Transactions of JWRI
citation_volume	41
citation_issue	1
citation_firstpage	1
citation_lastpage	6
citation_issn	03874508
citation_public_url	http://hdl.handle.net/11094/23159
citation_keywords	Arc
	Plasma
	Metal vapor
	Spectroscopic analysis
	TIG
	Welding

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