Optimization of metal transfer in rutile flux-cored arc welding through controlled CO₂ concentration in argon–CO₂ shielding gas

Trinh Ngoc Quang; Le, Khoi Dang; Tashiro, Shinichi; Suga, Tetsuo; Sasakura, Shuji; Fukuda, Kazuhiro; Murphy, Anthony B.; Bui, Hanh Van; Tanaka, Manabu

doi:https://doi.org/10.1016/j.jmapro.2024.06.047

Optimization of metal transfer in rutile flux-cored arc welding through controlled CO₂ concentration in argon–CO₂ shielding gas

Trinh Ngoc Quang; Le, Khoi Dang; Tashiro, Shinichi et al.

Journal of Manufacturing Processes, 2024, 124, 590-603

アクセス数:628件（2025-07-07 14:04 集計）

固定URL: https://hdl.handle.net/11094/98153

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タイトル	Optimization of metal transfer in rutile flux-cored arc welding through controlled CO₂ concentration in argon–CO₂ shielding gas
著者	著者名 Trinh Ngoc Quang
	著者名 Le, Khoi Dang
	NRID 1000070432424 1000070432424 researchmap permalink d8dshw3z d8dshw3z Scopus Author ID 15833130200 15833130200 著者名 Tashiro, Shinichi
	researchmap permalink TS2529 TS2529 NRID 1000010863102 1000010863102 著者名 Suga, Tetsuo
	著者名 Sasakura, Shuji
	著者名 Fukuda, Kazuhiro
	著者名 Murphy, Anthony B.
	著者名 Bui, Hanh Van
	NRID 1000020243272 1000020243272 researchmap permalink read0014392 read0014392 Scopus Author ID 25641191700 25641191700 著者名 Tanaka, Manabu
キーワード等	Arc plasma
	Flux column
	Flux-cored arc welding
	Metal transfer
	Metal vapor
	Rutile flux-cored wire
	Shielding gas
内容	Trinh N.Q., Le K.D., Tashiro S., et al. Optimization of metal transfer in rutile flux-cored arc welding through controlled CO₂ concentration in argon–CO₂ shielding gas. Journal of Manufacturing Processes 124, 590 (2024); https://doi.org/10.1016/j.jmapro.2024.06.047.
抄録	In this study, we analyzed the impact of carbon dioxide concentration in argon–carbon dioxide shielding gas on droplet transfer characteristics in rutile flux-cored arc welding, employing titanium oxide as a primary wire flux component. The welding process was carried out at a welding current of 190, 220, 250, 280, and 310 A under an argon–CO₂ shielding gas mixture with six levels of CO₂ concentration of 0, 5 %, 10 %, 15 %, 20 %, and 25 % for a parametric study. Unlike the conventional solid wire welding trend, where the droplet transfer frequency decreases with the increase in carbon dioxide concentration, an increase in metal transfer frequency was observed with the increase in CO₂ concentration from approximately 5 % to 20 %. The concentration reaching the maximum frequency was 20 % at 190 A, which decreased as the welding current increased, reaching 5 % at 310 A. Droplet initiation at the lower sheath end is succeeded by a gradual downward movement along the flux column's side after a few milliseconds. Upon reaching the lower end, the droplet forms a neck and undergoes separation. Thus, the length of the flux column directly impacts the duration of one droplet transfer cycle. The length was decreased by arc constriction when increasing CO₂ concentration appropriately to concentrate beneath the flux column or by increasing the welding current to raise the arc temperature, which contributed to melting and shortening the flux column.
出版者	Elsevier Ltd
収録物名	Journal of Manufacturing Processes
巻(号)	124
ページ	590-603
刊行年月	2024-08-30
言語	英語
ハンドルURL	https://hdl.handle.net/11094/98153
PISSN	15266125
関連情報 (isIdenticalTo)	DOI (出版社版) https://doi.org/10.1016/j.jmapro.2024.06.047
アクセス権	open access
権利情報	This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
出版タイプ	Version of Record
カテゴリ	学術雑誌論文 Journal Article

資源タイプ	学術雑誌論文
ローカル資源タイプ	学術雑誌論文
DCTERMS.bibliographicCitation	Journal of Manufacturing Processes. 2024, 124, p. 590-603
DC.title	Optimization of metal transfer in rutile flux-cored arc welding through controlled CO₂ concentration in argon–CO₂ shielding gas
DC.creator	Trinh Ngoc Quang
	Le, Khoi Dang
	Tashiro, Shinichi
	Suga, Tetsuo
	Sasakura, Shuji
	Fukuda, Kazuhiro
	Murphy, Anthony B.
	Bui, Hanh Van
	Tanaka, Manabu
DC.publisher	Elsevier Ltd
DC.language' scheme='DCTERMS.RFC1766	英語
DCTERMS.issued' scheme='DCTERMS.W3CDTF	2024-08-30
DC.identifier	https://doi.org/10.1016/j.jmapro.2024.06.047
DC.subject	Arc plasma
	Flux column
	Flux-cored arc welding
	Metal transfer
	Metal vapor
	Rutile flux-cored wire
	Shielding gas
DC.description	Trinh N.Q., Le K.D., Tashiro S., et al. Optimization of metal transfer in rutile flux-cored arc welding through controlled CO₂ concentration in argon–CO₂ shielding gas. Journal of Manufacturing Processes 124, 590 (2024); https://doi.org/10.1016/j.jmapro.2024.06.047.
DCTERMS.abstract	In this study, we analyzed the impact of carbon dioxide concentration in argon–carbon dioxide shielding gas on droplet transfer characteristics in rutile flux-cored arc welding, employing titanium oxide as a primary wire flux component. The welding process was carried out at a welding current of 190, 220, 250, 280, and 310 A under an argon–CO₂ shielding gas mixture with six levels of CO₂ concentration of 0, 5 %, 10 %, 15 %, 20 %, and 25 % for a parametric study. Unlike the conventional solid wire welding trend, where the droplet transfer frequency decreases with the increase in carbon dioxide concentration, an increase in metal transfer frequency was observed with the increase in CO₂ concentration from approximately 5 % to 20 %. The concentration reaching the maximum frequency was 20 % at 190 A, which decreased as the welding current increased, reaching 5 % at 310 A. Droplet initiation at the lower sheath end is succeeded by a gradual downward movement along the flux column's side after a few milliseconds. Upon reaching the lower end, the droplet forms a neck and undergoes separation. Thus, the length of the flux column directly impacts the duration of one droplet transfer cycle. The length was decreased by arc constriction when increasing CO₂ concentration appropriately to concentrate beneath the flux column or by increasing the welding current to raise the arc temperature, which contributed to melting and shortening the flux column.
DC.rights	This article is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
DC.format	98153
citation_title	Optimization of metal transfer in rutile flux-cored arc welding through controlled CO₂ concentration in argon–CO₂ shielding gas
citation_author	Trinh Ngoc Quang
	Le, Khoi Dang
	Tashiro, Shinichi
	Suga, Tetsuo
	Sasakura, Shuji
	Fukuda, Kazuhiro
	Murphy, Anthony B.
	Bui, Hanh Van
	Tanaka, Manabu
citation_publisher	Elsevier Ltd
citation_language	英語
citation_date	2024-08-30
citation_journal_title	Journal of Manufacturing Processes
citation_volume	124
citation_firstpage	590
citation_lastpage	603
citation_doi	https://doi.org/10.1016/j.jmapro.2024.06.047
citation_public_url	https://hdl.handle.net/11094/98153

Optimization of metal transfer in rutile flux-cored arc welding through controlled CO₂ concentration in argon–CO₂ shielding gas

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