Comparison of Mechanical Properties and Microstructural Charateristies of Tandem GMAW Weld Metal in 490MPa Grade Steel

• DOI: 10.5781/kwjs.2009.27.2.076
• Publication Date: 2012-08-20T08:33:23Z
• Authors: Hui-Jun Yi; Sung-Soo Kang; Gum-Bin Yu; Won-Hak Bae; Hyun-Soo Moon
• Keywords: Charpy impact test

Tandem GMAW is one of the high performance welding process and used in many industries to increase productivity. An evaluation presented mechanical properties microstructural characteristics conventional Single welds 30mm thickness 490MPa grade steel by comparison method. Welding sequence bead with hight was kept, avoiding effect shape sequence. Tension, bending, hardness Charpy impact test results met requirement specification showed similar distribution GMAW. Volume fraction ferrite phase weld metal little difference between