Wednesday, 26 August 2015

Hints For Wire Feed Welding

A rare hints Testament lift you bias a bully launch with wire feed welding.

Wire feed welding, which unlike stick welding uses a wire flux to reinforce its weld, consists of two major types -- metal inert gas and flux-cored wire welding. MIG welding provides a better overall appearance, as it causes fewer spatters, and works better with thinner materials. MIG welding requires more equipment than flux-cored welding, however, as it uses an inert gas to shield the weld.

Flux-Cored Wire Welding

When welding with flux-cored wire, keep your wire as clean and dry as you can. Also, when you finish a weld, clean off the slag, or debris, from the top of the weld.

Wire and Metal Thickness

When welding a thinner metal, use thinner wire; use thicker wires for thicker metals. You may also need different-sized machines, depending upon the size of the metal you're welding. Welding machines will usually come with these specifications.

Wire and Metal Matching

According to Hobart Welders, the wire you use should match the type of metal that you're welding; for example, use aluminum wire to weld aluminum and steel wire to weld steel.

MIG Welding Gases

Use carbon dioxide as your shielding gas while MIG welding on steel. Hobart Welders recommends using 75 percent argon and 25 percent carbon dioxide for thinner steel, and argon gas alone to weld aluminum. For stainless steel, experts recommend a triple-mix of helium, argon and carbon dioxide.

Flux-cored wire has the shield built into it, but can only be used with mild steel.

Wire Extension

Keep your wire sticking out of the tip of the contact tube while MIG welding. One-fourth to 3/8 of an inch of wire should extend out at all times while you work, suggests the Hobart Welders website.

A chipping hammer and a wire brush work well for such cleaning.