Blowing Holes In Sheet Metal Flux Welding

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Blowing holes in sheet metal flux welding.

If your welding wire is too thick it will take more heat to melt the wire than the substrate and can make it even more prone to blowing holes in the panel. Did you want to learn how to work around that and deliver a solid re. Just weld a tiny bit to one side wait a second then weld a tiny bit a third of a circle 120 degrees around then another third around etc until the there is enough metal around to make a continuous weld in the middle to seal things up. I keep blowing through my thin sheet.

To fix that hole and to do any more welding with out blowing through you could clamp a copper backing bar to the backside of the weld. For thinner gauge sheet metal like 18 or 20 gauge we suggest 023. This is the thinnest sheet metal i have ever welded using this process. Have you ever welded something so thin and worn out that all you do is blow holes in it.

Andy gives helpful insights and tips to mig weld thin sheet metal. In this article we are taking a look at how people should go about welding sheet meta l what kind of wire and shielding gas need to be used. I m welding very t. Don t attempt to weld thin materials like sheet metal with flux cored wires which put more heat into the base metal.

Use thin wire one big mistake we see with beginners is using welding wire that is too thick for the metal they re welding. 3 4mm holes are no trouble. Tig welding sheet metal. Forget the larger 1 8 inch tungsten electrode and use a smaller one.

To weld sheet metal with solid wires use electrode positive ep or reverse polarity.