How To Work On Welding. Attach the work lead to the workpiece and hold the gun so the wire meets the weld surface at about a 30-degree angle. Pressure is applied to keep the horn in contact with the welded materials and to hold them together.
Touch the wire very lightly to the surface squeeze the trigger and gently. Other methods rely on pressure to bind metal together and still others use a combination of both heat and pressure. It is the getting ready to weld that takes the time.
The parts to be welded are placed in the anvil or fixture.
Even 18 inch stock should be welded from both sides for penetration and strength. The horn contacts the parts to be welded. Mig welding tools are used to bring out the best in the resulting weld. The shielding comes from a compressed bottle of gas that flows to the weld area to protect it.