Characteristics of alternate supply of shielding gases in aluminum GMA welding

Kang, B. Y., Yarlagadda, Prasad K., Kang, M. J., Kim, H. J., & Kim, I. S. (2009) Characteristics of alternate supply of shielding gases in aluminum GMA welding. Journal of Materials Processing Technology, 209, pp. 4716-4721.

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Recently, unlike conventional method in supplying shielding gas, a newly method which alternately supplies different kinds of shielding gases in weld zone is developed and partly commercialized. However, literature related to the present status of the technology in the actual weld field is very scant. To give better understand on this technology, this study was performed. Compared with conventional gas supply method, the variations of weld porosity and weld shape in aluminum welding with alternate supply method of pure argon and pure helium were compared with conventional gas supply method with pure argon and argon + 67%helium mixture, respectively. As a result, compared with the welding by supplying pure argon and argon + 67%helium mixture by conventional method, the welding by supplying alternately pure argon and pure helium, produced lower degree of weld porosity and deeper and broader weld penetration profile.

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12 citations in Web of Science®

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ID Code: 25886
Item Type: Journal Article
Refereed: Yes
Keywords: Argon, Weld Porosity, Weld Penetratrion, Fluidity of weld pool, Shielding Gases
DOI: 10.1016/j.jmatprotec.2008.11.036
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > MANUFACTURING ENGINEERING (091000) > Manufacturing Processes and Technologies (excl. Textiles) (091006)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > Schools > School of Engineering Systems
Copyright Owner: Elsevier Publishers
Copyright Statement: © 2009 Elsevier B.V. All rights reserved.
Deposited On: 24 Jun 2009 01:05
Last Modified: 29 Feb 2012 13:54

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