MIG ALUMINUM

COMMON MISTAKES

• To much of a gun angle
• Voltage and wire speed
• To much/not enough stick out
• Not clean metal

GASES

• 100% Argon
• Argon/Helium
• Only use Helium on metal thicker than 1/2 inch. Helium burns hotter and penetrates deeper.
• Too much Argon creates erratic arc.

MIG VS TIG

• 1/8 or thicker: Mig
• Thinner than 1/8 or pipe: Tig
• Long production welds: Mig
• Small structural welds: Tig

PUSH VS PULL

• Push: ->
• Pull:
• Push aluminum; Welding into the shielding gas rather than away from it.

OVER HEATING ALUMINUM

• It is difficult to detect because the molten pool does not look much different than the base metal.

VIDEO

• http://www.weldingtipsandtricks.com/aluminum-welding-hobart-ironman.html

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