MIG Welding Part 1

Prioritize safety in MIG welding by wearing protective clothing and eye protection, keeping the area clean, shielding others with a curtain, and using a helmet with adjustable darkening.

Prepare welding panels by grinding and cleaning edges; remove rust and debris with an angular grinder or wire brush, then wipe with acetone, in a well ventilated, draft-free workspace.

Learn the MIG/MAG welding technique, including shielding gas, wire feed, voltage settings, and consistent arc stability to produce strong, reliable welds in steel and non-ferrous metals.

Learn to select a 0.02 inch / 0.6 mm welding wire for plates 0.02–0.08 inch thick, and test spot welds with varying voltage and wire feed for flat, deep-penetration weld.

Master torch holding techniques for MIG welding to control penetration and seam stability across butt, hollow seam, fillet, and corner welds, by adjusting angle, lean, speed, and wire feed.

Learn how the contact tube distance in inert gas welding determines current resistance and weld penetration. Maintain the correct distance to prevent burn-through and excessive spatter.

Master torch guiding to control seam depth and height, using neutral for spot welds, piercing for flat penetration, and forehand for bodywork; monitor angle, distance, and wire feed.

Master the torch distance in MIG welding to ensure shield gas penetration and stable seams, from lap to plug welds, with proper voltage, wire feed, and gas flow.

Join two flat plates with butt welding, filling gaps by weaving the torch and welding the seam in any position, from edges touching without overlap to closing small gaps.

Learn to close holes in MIG welding with aluminum, copper, or bronze underlay, and repair cutouts by backing with sheet steel, sequential welding, and grinding smooth.

Learn how fillet welds join perpendicular or angled plates using torch angles of 35–45° to the plates and 45–55° to the weld area, with controlled gas flow and wire feed.

Learn the round fillet welding technique for tubes and joints, including torch angles of 45–55 degrees, increased voltage and wire length, and when to apply round fillet versus butt weld.

Learn how oxygen in the shielding gas forms pores and how torch position, gas flow, nozzle condition, and drafts affect weld quality, with argon 4.6 for aluminium and braze welding.

Learn to weld vertical and rising seams by controlling heat with an 80-degree torch angle, increased current for penetration, and a 45-degree tilt, pulling bottom to top with a z-motion.