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Tig Weld Penetration Improvement by Laser-Activated Process With Oxygen

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Abstract

This paper deals with a newly developed pretreatment for TIG arc welding to improve weld penetration. As a pre-treatment, a small oxidized region was produced on the surface of stainless steel plates by laser irradiation using oxygen gas prior to travelling TIG arc. The effect of the pre-treatment (especially named LA pre-treatment) on the TIG weld penetration was evaluated. It was found that the pre-treated region extremely smaller than the weld could make the TIG weld penetration deeper at lower welding speeds.

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Authors and Affiliations

  1. Joining and Welding Research Institute, Osaka University, Osaka, Japan

    Masami Mizutani &  Seiji Katayama

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  1. Masami Mizutani
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  2. Seiji Katayama
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Mizutani, M., Katayama, S. Tig Weld Penetration Improvement by Laser-Activated Process With Oxygen. Weld World 56, 21–29 (2012). https://doi.org/10.1007/BF03321141

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  • DOI: https://doi.org/10.1007/BF03321141

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