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How To Weld Aluminum Sheet Metal. This helps to keep the oxidation out of the puddle when youre welding. This simply means that prior to welding the steel and aluminum together the steel is first.
But it has a twofold use as it improves the quality of the welding process. One side of the insert is welded steel-to-steel and the other aluminum-to-aluminum. How to MIG Weld Aluminium.
Another method many use to successfully weld aluminum to steel is dip coating also commonly referred to as hot dip aluminizing.
Dont attempt to weld thin materials like sheet metal with flux-cored wires which put more heat into the base metal. If a chosen filler metal melts at 1250 degrees F for instance it will braze alloys that melt at greater than approximately l325 degrees F. To weld sheet metal with solid wires use electrode positive EP or reverse polarity. Produce arc-welded joints between aluminum and steel pipelines.