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IJAT Vol.7 No.1 pp. 109-113
doi: 10.20965/ijat.2013.p0109
(2013)

Paper:

Improvement of Welding Stability and Toughness Using Gas Metal Arc Welding in Pure Ar Shielding Gas

Terumi Nakamura* and Kazuo Hiraoka**

*National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan

**Joining and Welding Research Institute, Osaka University, 11-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan

Received:
August 1, 2012
Accepted:
October 30, 2012
Published:
January 5, 2013
Keywords:
Ar-GMA welding, coaxial multilayer solid wire, Ar shielding gas, oxygen, toughness
Abstract

We develop a coaxial multilayer solid wire to use in Gas Metal Arc welding with pure Ar shielding gas (Ar-GMA welding). The oxygen concentration in weld metal that degrades the welded parts is reduced using by Ar-GMA welding. We produce stable welds with pure Ar shielding gas and obtain a high-quality joint with improved toughness.

Cite this article as:
T. Nakamura and K. Hiraoka, “Improvement of Welding Stability and Toughness Using Gas Metal Arc Welding in Pure Ar Shielding Gas,” Int. J. Automation Technol., Vol.7, No.1, pp. 109-113, 2013.
Data files:
References
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  2. [2] T. Nakamura, K. Hiraoka, and S. Zenitani, “Improvement of MIG welding stability in pure Ar shielding gas using small amount of oxygen and coaxial hybrid solid wire,” Science and Technology of Welding and Joining, Vol.13, No.1, pp. 25-32, 2008.
  3. [3] M. Ushio and F.Matsuda, “Effect of Oxygen on Stabilization of Arc in 9%Ni-Steel GMA Welding,” Trans. JWRI, Vol.7, No.1, pp. 93-100, 1978.
  4. [4] T. Nakamura and K. Hiraoka, “Wire Melting Behavior by Non-Steady Heat conduction Numerical Analysis in Gas Metal Arc Welding,” Quarterly J. of the Japan Welding Society, Vol.20, No.1, pp. 53-62, 2002
  5. [5] T. Nakamura and K. Hiraoka, “Modeling of wire melting behavior of coaxial hybrid solid wire in gas metal arc welding in a pure argon shielding gas,” Welding in the World, Vol.53, Nos.7/8, R158-R165, 2009.
  6. [6] K. Hiraoka et al. “Activities of welding sub-group in NEDO project,” Preprints of the National Meeting of JWS, Vol.90, 18-23.

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Last updated on Nov. 08, 2019