کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1787222 | 1023434 | 2012 | 6 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Droplet transfer during conventional gas metal arc and plasma-gas metal arc hybrid welding with Al 5183 filler metal Droplet transfer during conventional gas metal arc and plasma-gas metal arc hybrid welding with Al 5183 filler metal](/preview/png/1787222.png)
When welding with 5xxx series aluminium filler wires, explosion of droplets occurs during droplet transfer, which results in spatter formation. In plasma-GMA (gas metal arc) hybrid welding, the coaxial plasma arc surrounding the GMA enables more stable droplet transfer and lower GMA current. In this study, bead-on-plate welding tests were conducted using conventional GMA welding and plasma-GMA hybrid welding. Droplet transfer behaviours for both processes were observed using high-speed imaging, and droplet explosion behaviour was analysed under various welding conditions. In plasma-GMA welding, the droplet transfer was stabilized without in-flight explosion, even for high welding current and higher melting rate was achieved by the additional plasma arc.
Journal: Current Applied Physics - Volume 12, Supplement 2, September 2012, Pages S178–S183