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Analysis And Comparison Of Aluminum Alloy Welded Joints Between Metal Inert Gas Welding And Tungsten Inert Gas Welding

Author

Listed:
  • LEI ZHAO

    (Beihang University, 37 Xueyuan Road, Beijing 100191, P. R. China)

  • YINGCHUN GUAN

    (Beihang University, 37 Xueyuan Road, Beijing 100191, P. R. China;
    Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore;
    Singapore Institute of Manufacturing Technology, 71 Nanyang Drive, Singapore 638075, Singapore)

  • QIANG WANG

    (Beihang University, 37 Xueyuan Road, Beijing 100191, P. R. China)

  • BAOQIANG CONG

    (Beihang University, 37 Xueyuan Road, Beijing 100191, P. R. China)

  • BOJIN QI

    (Beihang University, 37 Xueyuan Road, Beijing 100191, P. R. China)

Abstract

Surface contamination usually occurs during welding processing and it affects the welds quality largely. However, the formation of such contaminants has seldom been studied. Effort was made to study the contaminants caused by metal inert gas (MIG) welding and tungsten inert gas (TIG) welding processes of aluminum alloy, respectively. SEM, FTIR and XPS analysis was carried out to investigate the microstructure as well as surface chemistry. These contaminants were found to be mainly consisting ofAl2O3,MgO, carbide and chromium complexes. The difference of contaminants between MIG and TIG welds was further examined. In addition, method to minimize these contaminants was proposed.

Suggested Citation

  • Lei Zhao & Yingchun Guan & Qiang Wang & Baoqiang Cong & Bojin Qi, 2015. "Analysis And Comparison Of Aluminum Alloy Welded Joints Between Metal Inert Gas Welding And Tungsten Inert Gas Welding," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 22(06), pages 1-7.
    • Handle: RePEc:wsi:srlxxx:v:22:y:2015:i:06:n:s0218625x15500791
    DOI: 10.1142/S0218625X15500791
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