Journal of Light Metal Welding
Online ISSN : 2186-618X
Print ISSN : 0368-5306
ISSN-L : 0368-5306
Volume 51 , Issue 2
JOURNAL OF LIGHT METAL WELDING
Showing 1-1 articles out of 1 articles from the selected issue
Technical Paper
  • Yoshiaki Morisada, Hidetoshi Fujii, Inagaki Huminori, Masayoshi Kam ...
    2013 Volume 51 Issue 2 Pages 62-68
    Published: February 16, 2013
    Released: March 02, 2013
    JOURNALS FREE ACCESS
    A new welding method, called ultrasonic wave tungsten inert gas (TIG) welding, is developed to decrease porosities in a weld. A1050 aluminum plates are welded at an alternating current (AC) frequency from 10 to 40 kHz. An argon (Ar)-1%hydrogen mixture is used as the shielding gas to generate porosities in the experiments. For comparison, a normal TIG welding is also performed at 60 Hz. After welding, the distribution of the porosities in the welds is observed in order to evaluate the effect of the sonic wave. The number of porosities changes with the frequency. A frequency near 15 kHz is the most suitable to decrease the porosities. Using this new method, the area of porosities is decreased to less than about 1/8 of the normal TIG weld. This method is effective for decreasing the number of porosities.
    Download PDF (2841K)
feedback
Top