2mm aluminum welding with oxygen welding or argon arc welding good?
In order to improve the welding quality and welding seam strength, 2 mm aluminum should be the first choice of AC TIG welding + aluminum welding wire welding.The second is: oxygen acetylene (or oxygen propane flame gas welding) + + aluminum welding wire welding aluminum solder.
Before welding need cleaning with acetone wire and base metal surface oil and oxide layer, according to welding tungsten diameter, filler wire diameter selection of appropriate welding parameters (base current, peak current, pulse width, pulse duration, pulse frequency, duty ratio, etc.).Oxygen acetylene (or oxygen propane) flame welding, flame welding due to large heating area, directly lead to weld coarse grains, degree of weld oxidation is lower than that of AC TIG welding effect. The weld strength and mechanical properties are lower.
2 mm thickness of aluminum welding, argon arc welding preferred.2 mm thickness aluminum plate, in order to ensure the quality of welding and weld strength, the first choice should be: inverter square wave pulse TIG welding machine welding. According to the specific material and grade of the aluminum plate, the aluminum welding wire matched with the base material is selected.