Blowing Holes In Sheet Metal Flux Welding

Stick welding sheet metal with 6013 rods.

Blowing holes in sheet metal flux welding.

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. Use thin wire one big mistake we see with beginners is using welding wire that is too thick for the metal they re welding. Did you want to learn how to work around that and deliver a solid re. Forget the larger 1 8 inch tungsten electrode and use a smaller one.

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. Andy gives helpful insights and tips to mig weld thin sheet metal. 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. When it comes to welding thin sheet metal like car body panels if you are not experienced and skilled enough then you can easily create a mess as blow holes in the sheet and make the metal useless.

Don t attempt to weld thin materials like sheet metal with flux cored wires which put more heat into the base metal. Best deal on goodyear air hose check this out https amzn to 3b5cjvy. For thinner gauge sheet metal like 18 or 20 gauge we suggest 023. I m welding very t.

As far as the weld you put down it looks fine you probably don t want to go much bigger than 1 8 of an inch fillet weld if the material the frame rail is only 1 8 inch thick. I keep blowing through my thin sheet. To weld sheet metal with solid wires use electrode positive ep or reverse polarity. 3 4mm holes are no trouble.

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.