Get scrap metal of about the same thickness to practice with. With practice you’ll feel when you have a good weld especially but it all adds up but you need to actually do it to learn. the amount of time it takes to get a good weld and especially the feel of the clamps as they come together during the weld. You need to practice and you’ll notice the color, sound of the welder. You need to keep them clean to be most effective.įor beginners, there is no way to tell you how long to clamp and trigger the current for – many factors can affect how long it takes to heat the steel up enough for the two pieces of sheet metal to weld together. I have had to replace the tips once so far, just FYI. The tong makes it way easier to reach in and make the weld and the tips make the spot weld look a lot more like the real ones. It’s lasted me through quite a few builds over the years and is still going strong. I use a Harbor Freight #45689 115 Volt spot welder with AK-Builder upper replacement tong and also tips. This is one of those things where you want to check and double-check prior to and after each weld to make sure nothing shifted on you. The best way I found to align the lower rails in a flat so they were both parallel with the upper rail and aligned with the trunnion was to use a drill bits of the proper size to locate the lower rail and I would then clamp the lower rail in place prior to spot welding. I heat treat the lower rails before I install them.
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