Page 118 - Welding of Aluminium and its Alloys
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(a)
(b)
6.5 AC-TIG argon shielded (a) unbacked 3mm sheet, single pass, flat
position; (b) unbacked 6mm thick plate, two pass, flat position.
6.6 AC-TIG argon shielded, 6mm thick plate, single pass,
horizontal–vertical.
25
12
MATERIAL THICKNESS (mm) 10 6.0
5.0
3.0
2.0
1.6
1.0
0
0 50 100 150 200 250 300 350 400
WELDING CURRENT (A)
6.7 Typical TIG current ranges for various material thicknesses.
