Characteristics of a Co₂ Shielded Gas Tungsten Arc

Tanaka, Manabu; Tashiro, Shinichi; Kashima, Takayuki; Murphy, Anthony.B.; Lowke, John.J.

doi:https://doi.org/10.18910/6515

Characteristics of a Co₂ Shielded Gas Tungsten Arc

Tanaka, Manabu; Tashiro, Shinichi; Kashima, Takayuki et al.

Transactions of JWRI, 2006, 35(1), 9-12

アクセス数:390件（2025-06-23 02:47 集計）

固定URL: https://doi.org/10.18910/6515

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タイトル	Characteristics of a Co₂ Shielded Gas Tungsten Arc
著者	NRID 1000020243272 1000020243272 researchmap permalink read0014392 read0014392 Scopus Author ID 25641191700 25641191700 著者名 Tanaka, Manabu
	NRID 1000070432424 1000070432424 researchmap permalink d8dshw3z d8dshw3z Scopus Author ID 15833130200 15833130200 著者名 Tashiro, Shinichi
	著者名 Kashima, Takayuki
	著者名 Murphy, Anthony.B.
	著者名 Lowke, John.J.
キーワード等	CO₂ gas
	Thermal plasma
	Arc
	Heat source
	Materials processing
	Low cost
	High productivity
抄録	In order to develop a novel heat source for materials processing with low costs and high productivity in comparison with the TIG arc, the characteristics of a CO₂ gas shielded plasma arc are studied. A double gas shielded system which consists of CO₂ gas and inert gas is employed for the plasma arc torch, so avoiding the consumption of tungsten electrode, and then achieves equivalent arc stability to a TIG arc for 1800 seconds operation. The arc voltage of the CO₂ gas shielded plasma arc in the conditions of arc current 150 A and arc gap 3 mm is about 19 V, which is much higher than the 12 V of a TIG arc. The CO₂ gas clearly constricts the arc and the maximum heat intensity at the anode surface in the CO₂ gas shielded plasma arc becomes about 10 times larger than that of the TIG arc. The penetration depth of stainless steel melted by the CO₂ gas shielded plasma arc is much larger than that for the argon TIG arc. It is concluded that the greater heating power of the CO₂ gas shielded plasma arc due to the arc constriction remarkably contributes to the high productivity of materials processing.
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)	35(1)
ページ	9-12
刊行年月	2006-07
言語	英語
ハンドルURL	https://hdl.handle.net/11094/6515
DOI	https://doi.org/10.18910/6515
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.35 No.1 (2006-07)

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. 2006, 35(1), p. 9-12
DC.title	Characteristics of a Co₂ Shielded Gas Tungsten Arc
DC.creator	Tanaka, Manabu
	Tashiro, Shinichi
	Kashima, Takayuki
	Murphy, Anthony.B.
	Lowke, John.J.
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	2006-07
DC.subject	CO₂ gas
	Thermal plasma
	Arc
	Heat source
	Materials processing
	Low cost
	High productivity
DCTERMS.abstract	In order to develop a novel heat source for materials processing with low costs and high productivity in comparison with the TIG arc, the characteristics of a CO₂ gas shielded plasma arc are studied. A double gas shielded system which consists of CO₂ gas and inert gas is employed for the plasma arc torch, so avoiding the consumption of tungsten electrode, and then achieves equivalent arc stability to a TIG arc for 1800 seconds operation. The arc voltage of the CO₂ gas shielded plasma arc in the conditions of arc current 150 A and arc gap 3 mm is about 19 V, which is much higher than the 12 V of a TIG arc. The CO₂ gas clearly constricts the arc and the maximum heat intensity at the anode surface in the CO₂ gas shielded plasma arc becomes about 10 times larger than that of the TIG arc. The penetration depth of stainless steel melted by the CO₂ gas shielded plasma arc is much larger than that for the argon TIG arc. It is concluded that the greater heating power of the CO₂ gas shielded plasma arc due to the arc constriction remarkably contributes to the high productivity of materials processing.
DC.identifier	10.18910/6515
DC.format	6515
citation_title	Characteristics of a Co₂ Shielded Gas Tungsten Arc
citation_author	Tanaka, Manabu
	Tashiro, Shinichi
	Kashima, Takayuki
	Murphy, Anthony.B.
	Lowke, John.J.
citation_publisher	大阪大学接合科学研究所
citation_language	英語
citation_date	2006-07
citation_journal_title	Transactions of JWRI
citation_volume	35
citation_issue	1
citation_firstpage	9
citation_lastpage	12
citation_public_url	https://hdl.handle.net/11094/6515
citation_doi_detail	10.18910/6515
citation_doi	https://doi.org/10.18910/6515

Characteristics of a Co₂ Shielded Gas Tungsten Arc

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