I have a couple 25-pound weight lifting plates I lay on floors when I am putting in patch panels. Make sure you go into the patch panel enough to get a good "bite" on the panel.Īnother key is to make sure the patch panel is laying tight to the ledge under it. Get the puddle flowing well, then little circles with the MIG gun until you hit the edges of the hole in your patch panel. Turn the heat up, and turn the wire speed up just enough so it feeds into the molten puddle. When it cools, the filler material is bonded to the patch panel, but not bonded well enough to the ledge under it. Then you're filling the hole on your patch panel. I believe what's happening is that you're getting a puddle of melted metal (the filler wire) that ends up sitting on top of your ledge-it didn't get hot enough to penetrate the ledge. I'm with the other guys here-you need to set the machine to get good penetration on the thicker metal. The gas is an argon mix running 22CFH.Īny advice? I'm doing something wrong but don't know what. It's worked well on welding like thickness panels together. I've tried fast wire, high heat, slow wire high heat, slow wire low heat etc. It cools and POP it breaks loose! The metal is clean, I ground it off until it was shiny! I believe it's me, my lack of knowledge and experience. I start in the center of the hole on the lip and hold the tip as I squeeze the trigger, I count till about five, swirl it a little to hit the new pan and stop. I started with a 1/8" hole, moved up to a 3/16 and then 1/4" all with the same result. I drilled holes spaced about 1" apart to weld onto a thicker lip to hold the pans. Welding in new floor pans on an air cooled VW. Looking for some advice / help on spot welding, plug welding whatever he proper term for it is.
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