Travel speed should keep the weld puddle small and controlled, preventing overheating. A typical range is 98% argon with 1% to 2% oxygen, which promotes a stable arc, good wetting, and a visually appealing bead.
Essential Post-Weld Cleaning for Stainless Steel MIG Welds
Using straight argon is possible but often produces a narrower bead profile and can be more challenging for beginners. Avoid weaving the gun excessively; instead, use a tight, controlled stitch or drag technique.
Wire feed speed typically ranges from 200 to 400 inches per minute, adjusted until the arc sounds smooth and the bead looks consistent. Voltage and Wire Feed Speed Guidelines While exact numbers vary by machine, wire diameter, and material thickness, general ranges provide a reliable starting point.
Essential Post-Weld Cleaning for Stainless Steel MIG Welds
Excessive heat input can burn off the chromium, creating weak, rust-prone welds, while too little heat leads to poor fusion and lack of penetration. When in doubt, test on scrap material to dial in the amperage and travel speed before working on critical parts.
More About Mig welding stainless steel settings
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