Diffusion bonding of stainless ASTM A240 grade 304 in double side flux cored arc welding

Authors

  • Sombat Pitaknorachon King Mongkut’s University of Technology Thonburi
  • Bovornchok Poopat King Mongkut’s University of Technology Thonburi

Keywords:

Double side flux cored arc welding (DS-FCAW), Diffusion

Abstract

Double side flux cored arc welding (DS-FCAW) has been developed from conventional flux cored arc welding (FCAW). DS-FCAW, dual torches are used by placing an opposite to each other and welding on both sides simultaneously. The objective of this research paper is to investigate diffusion bonding effect due to DS-FCAW. Stainless steel ASTM A240 Grade 304 was studied. Other welding parameters were set constant except welding current and voltage. Diffusion bonding was observed even though weld profiles from macro inspection showed lack of penetration by we ld metal in all experiments. It can be concluded that, at certain conditions, the welds can pass both mechanical test and microstructure examination because diffusion bonding process was completely developed due to high contraction stress and high temperature. The advantage of DS-FCAW is that the required joint mechanical properties can be achieved in single welding which results in reduction of welding time and cost.

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References

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Dave, V.R., Beyerlein, I.J., Hartman, D.A. and Barbieri., J.M. A Probabilistic Diffusion Weld Modeling Framework. Welding Research. : 170-171. 6. ASME Section II Part D, 2001 ED: 671-672 and Section IX : 3.

Yeh, M.S., Tseng, Y.H. and Chuang, T.H. Effect of Superplastic Deformation on the Diffusion Welding of SuperDux 65 Stainless steel. In : Welding Research. Miami, American Welding Society : 301-304.

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Published

2017-04-23

How to Cite

[1]
S. Pitaknorachon and B. . Poopat, “Diffusion bonding of stainless ASTM A240 grade 304 in double side flux cored arc welding”, J Met Mater Miner, vol. 18, no. 1, Apr. 2017.

Issue

Vol. 18 No. 1 (2008)

Section

Original Research Articles

License

Copyright (c) 2017 Journal of Metals, Materials and Minerals

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