Welding Small Holes In Sheet Metal

In this video matt goes over how to fill holes in sheet metal using a mig welder and a tig welder.

Welding small holes in sheet metal.

Any kind of welder can be used but the best. The welding process actually adds new steel to the thin steel and can result in a repaired spot that is stronger than the original metal. Never go for a thinner base metal for the auto body sheet welding to get the best result out of it. Holes larger than 1 4 need to be filled with metal.

Weld thru coating many welding operation leave a section of the weld hidden. A small magnet will help keep the filler metal in place while you weld. I used a piece of pvc pipe a vice mount miniature metal break and body hammer kit. It will inflict less damage on the metal as well.

After slicing the patches out with a cutoff wheel next came the bending hammer and dolly session until the patches matched the holes and fit snug and flush into the flanged seat. Always use the smallest wire diameter possible since smaller wires take less heat to melt and heat the metal less. 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. Small wire diameter will let you have flexibility if you mess up anything.

Small wires also provide more control over the weld bead and a better chance of recovering from mistakes due to lower deposition rates. The complexity of welding increases as the thickness of the material decreases. The most permanent repair to a hole in sheet metal is to weld the hole shut. Get a tig 200.

Regardless of the reason you will have holes that need welded shut. Make sure you always work with a small wire diameter to avoid making holes in your sheet metal. As a rule of thumb don t use a filler metal thicker than the base. Mig welding 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. If you are going to weld on thin sheet metal such as car body parts then you re going to have holes to weld from time to time. I then used the templates to trace out the patch panels on some sheet metal.