3/25/2023 0 Comments Slow burn through all lows![]() Slower travel speeds ensure that you are melting into both pieces of material. For thicker metals, you can get away with a slower travel speed – it will also help with penetrating the thicker steels. For thinner materials, a faster travel speed is usually the best choice. Traveling too slow can cause too much heat to build up, which can cause a hole in the metal aka a “burn through”.įinding the perfect balance in travel speed is essential for preventing burn throughs. Traveling too fast will cause thin, stringy beads that aren’t very strong. Travel speed refers to the pace in which a weld is performed. If you were to bump up the amperage to 150, the weld would simply be too hot for the rod (electrode) to keep up. This amperage paired with the filler metal work in harmony to achieve a consistent weld. To avoid this, try following the recommended amperage for your specific process.įor example, a 3/32″ 7018 stick electrode is generally run at about 90 amps. High amperage is great if there is plenty of filler metal being added, but without adequate filler – a burn through is very likely. This will melt through the metal and form a hole. If your amperage is too high, the filler metal can’t keep up with the heat. Having high amperage can be great for welding thicker material, but it can also cause problems with thinner steel. Preventing Burn Through Before It Happens. ![]() ![]() Problem #7 – Welding Thin Steel To Thick Steel.Problem #5 – Too Many Consecutive Passes.
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