Soft variable polarity plasma arc horizontal welding technology and weld asymmetry

References

• Li H., Sun Q. J., Liu X. M., Li W., Zhao H. Y. and Feng J. C.: ‘Research status and development trend of horizontal welding technology’, Adv. Mater. Res., 2013, 753, 407–412.
   Google Scholar
• Fujii H., Umakoshi H., Aoki Y. and Nogi K.: ‘Bubble formation in aluminium alloy during electron beam welding’, J. Mater. Process. Technol., 2004, 155–156, 1252–1255.
   Web of Science ®Google Scholar
• Arata Y., Inoue K., Shibata Y., Tamaoki M. and Akashi H.: ‘Automatic control of horizontal narrow gap welding (report I): algorithm for automatic selection of optimum welding condition (welding physics, processes (instruments)’, Trans. JWRI, 1979, 8, (1), 1–11.
   Google Scholar
• Yang C. L., Guo N., Lin S. B., Fan C. L. and Zhang Y. Q.: ‘Application of rotating arc system to horizontal narrow gap welding’, Sci. Technol. Weld. Join., 2009, 14, (2), 172–177.
   Web of Science ®Google Scholar
• Cui H. C., Jiang Z. D., Tang X. H. and Lu F. G.: ‘Research on narrow-gap GMAW with swing arc system in horizontal position’, Int. J. Adv. Manuf. Technol., 2014, 74, (1–4), 297–305.
   Google Scholar
• Kominek J.: ‘Mechanised welding of thick wall austenitic rotating joints in horizontal position on vertical surface’, Weld. Int., 1989, 3, (8), 717–724.
   Google Scholar
• Manabe Y., Zenitani S., Hiromoto Y., Wada H. and Hashimoto Y.: ‘Study of two-wire, horizontal-position TIG welding with electromagnetically controlled molten pool process’, Weld. Int., 2000, 14, (9), 695–705.
   Google Scholar
• Traidia A., Roger F., Schroeder J., Guyot E. and Marlaud T.: ‘On the effects of gravity and sulfur content on the weld shape in horizontal narrow gap GTAW of stainless steels’, J. Mater. Process. Technol., 2013, 213, (7), 1128–1138.
   Google Scholar
• Kumar A. and DebRoy T.: ‘Heat transfer and fluid flow during gas–metal–arc fillet welding for various joint configurations and welding positions’, Metall. Mater. Trans., 2007, 38, (3), 506–519.
   Web of Science ®Google Scholar
• Woodward N. J., Richardson I. M. and Thomas A.: ‘Variable polarity plasma arc welding of 6.35 mm aluminium alloys: parameter development and preliminary analysis’, Sci. Technol. Weld. Join., 2000, 5, (1), 21–25.
   Web of Science ®Google Scholar
• Zhang Q. L., Yang C. L., Lin S. B. and Fan C. L.: ‘Characteristics of weld formation in variable polarity plasma arc horizontal welding of 2A14 aluminium alloy’, Trans. China Weld. Inst., 2013, 34, (9), 79–82.
   Google Scholar
• Oishi M., Okuda N., Tomita M., Kashimura T. and Koga S.: ‘Process for welding aluminium and aluminium alloys in horizontal welding position’. US Patent 4037078, published 19 July 1977.
   Google Scholar
• Zhang Q. L., Yang C. L., Lin S. B. and Fan C. L.: ‘Horizontal welding of aluminium alloys by soft plasma arc’, Proc. Inst. Mech. Eng. B, J. Eng. Manufact., 2014, 228, (11), 1481–1490.
   Google Scholar
• Zhang Q. L., Fan C. L., Lin S. B. and Yang C. L.: ‘Novel soft variable polarity plasma arc and its influence on keyhole in horizontal welding of aluminium alloys’, Sci. Technol. Weld. Join., 2014, 19, (6), 493–499.
   Web of Science ®Google Scholar
• Campbell S. W., Galloway A. M. and McPherson N. A.: ‘Arc pressure and weld metal fluid flow while using alternating shielding gases. Part 1: arc pressure measurement’, Sci. Technol. Weld. Join., 2013, 18, (7), 591–596.
   Web of Science ®Google Scholar
• Zhou W. S. and Yao J. S.: ‘Aluminium and aluminium alloys welding’; 2006, Beijing, China Machine Press.
   Google Scholar
• Campbell S. W., Galloway A. M. and McPherson N. A.: ‘Arc pressure and fluid flow during alternating shielding gases. Part 2: arc force determination’, Sci. Technol. Weld. Join., 2013, 18, (7), 597–602.
   Web of Science ®Google Scholar
• Huang C. and Kou S.: ‘Partially melted zone in aluminium welds—liquation mechanism and directional solidification’, Weld. J., 2000, 79, (5), 113s–120s.
   Google Scholar