Indian Welding Journal

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Effects of Shielding Gas Composition on Metal Transfer Phenomena in High Current GMA Welding


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1 Osaka University, Ibaraki, Osaka 567, Japan
     

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Metal transfer phenomena in high current GMA welding with several kinds shielding gas have been systemetically investigated with high speed cine camera Typical transfer modes are classified into four types, depending on the welding current : globular transfer, axial spray transfer, swinging spray transfer, and rotating spray transffer. The dependence of the transfer mode as welding current can be explained by the instability melted electrode using numerical modeling based on MHD theory.
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  • Effects of Shielding Gas Composition on Metal Transfer Phenomena in High Current GMA Welding

Abstract Views: 232  |  PDF Views: 4

Authors

Masao Ushio
Osaka University, Ibaraki, Osaka 567, Japan
Kenji Ikeuchi
Osaka University, Ibaraki, Osaka 567, Japan
Manabu Tanaka
Osaka University, Ibaraki, Osaka 567, Japan
Takeshi Seto
Osaka University, Ibaraki, Osaka 567, Japan

Abstract


Metal transfer phenomena in high current GMA welding with several kinds shielding gas have been systemetically investigated with high speed cine camera Typical transfer modes are classified into four types, depending on the welding current : globular transfer, axial spray transfer, swinging spray transfer, and rotating spray transffer. The dependence of the transfer mode as welding current can be explained by the instability melted electrode using numerical modeling based on MHD theory.