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http://dx.doi.org/10.5781/JWJ.2014.32.1.28

Weldability Evaluation in Plasma-GMA Hybrid Welding for Al-5083 Using Analysis of Variance  

Jung, Jin Soo (Department of Mechanical Engineering, Pukung National University)
Lee, Jong Jung (Department of Mechanical Engineering, Pukung National University)
Lee, Hee Keun (Industrial Application R&D Institute, DSME Co., LTD.)
Park, Young Whan (Department of Mechanical Engineering, Pukung National University)
Publication Information
Journal of Welding and Joining / v.32, no.1, 2014 , pp. 28-33 More about this Journal
Abstract
In this paper, I-butt welding with 6mm thickness using Plasma-GMA welding was carried out. And weld characteristics of the Al-5083 aluminium alloy for Plasma-GMA hybrid welding was evaluated. The orthogonal experimental design was used to investigate the influence of plasma-MIG welding parameters such as plasma current, wire feeding rate, MIG-welding voltage and welding speed on the weld bead geometry and tensile strength using the ANOVA(Analysis of Variation). Then we conducted evaluation of contribution for process parameters. ANOVA results show that bead dimensions are affected by wire feeding speed, welding voltage and welding speed and tensile strength is mainly affected by welding speed and plasma arc current. Tensile strength was decreased by rise in plasma welding current because GMA welding current was decreased by plasma arc.
Keywords
AL5083 alloy; Plasma-GMA welding; ANOVA; Hybrid welding; Orthogonal design;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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1 B.Y. Kang and J.H. Jo : Consideration for Structure and Fabrication Procedure of Aluminum Boat, Journal of KWJS, 22-3 (2004), 39-44 (in Korean)   과학기술학회마을
2 Y.W. Park : A Study of the Process Variables Optimization Methodology and Intelligent Quality Estimation for the Manufacturing Automation in Laser Material Processing, Ph. D. Dissertation Hanyang University, 2006 (in Korean)
3 S.J. Kim, S.K. Jang and M.S. Han : Evaluation of Mechanical Characteristic of Al Alloy for Ship's Welded with Various Welding Techniques, Journal of the KSME & Safety, 13-3 (2007), 223-228 (in Korean)
4 S.K. Jang and J.S. Park : Mechanical Characteristics and Macro-and micro-structures on Friction Stir Welded Joints with 5083O Al Alloys, Journal of the KSME, 33-1 (2009), 104-111 (in Korean)   과학기술학회마을   DOI   ScienceOn
5 D.C. Montgomery : Design and Analysis of Experiments (7th Edition), John Wiley & Sons, Inc., 2009.
6 ANSI, AWS D1.2 : Structural Welding Code-Aluminum (3th Edition), 1997
7 Welding & Joining Handbook, KWJS. 2008, 317-320 (in Korean)
8 A.A. Resende, V.A. Ferraresi, A. Scotti and J.C. Dutra : Influence of Welding Current in Plasma- MIG Weld Process on the Bead Weld Geometry and Wire Fusion Rate, Welding International, 25-12 (2011), 910-916   DOI   ScienceOn
9 H. Ton : Physical Properties of the Plasma-MIG Welding Arc, Appl Phys., 8-4 (1975), 922-933
10 G. Mathers : The Welding of Aluminum and Its Alloys, Woodhead Publishing Ltd., 2002