Useful tips for Wire Feed Welders:

Wire feed welding, which not like stick welding uses a wire flux to reinforce its weld, consists of two main types, first one is metal inert gas and second one is flux-cored wire welding. MIG welding gives a best overall appearance, as it causes fewer spatters, and works best with thinner materials. MIG welding needs more tools than flux-cored welding, however, as it uses an inert gas to shield the weld. Flux-cored wire has the protect built into it, but can only be used with soft steel.

Wire Extension:
Maintain your wire sticking out of the tip of the contact tube as MIG welding. One-fourth to 3/8 of an inch of cable should expand out at all times as you work, suggest the Everlast Welders website.

Wire and Metal Thickness:
When welding a slim metal, use thinner cable; use thicker cables for thicker metals. You may also require different sized machinery, based upon the size of the metal you are welding. Welding machines will regularly come with these specifications.

Wire and Metal Matching:
According to Everlast Welders, the cables you use should match the type of metal that you are welding; for ex, use aluminum cable to weld aluminum and steel cable to weld steel.

MIG Welding Gases:
Use carbon dioxide as your shielding gas as MIG welding on steel. Everlast Welders suggests using 75 percent argon and 25 percent carbon dioxide for slim steel, and argon gas alone to weld aluminum. For stainless steel, experts suggest a triple-mix of helium, argon and carbon dioxide.

Flux-Cored Wire Welding:
When welding with flux-cored cable, maintain your cable as dirt free and dry as you can. In addition, when you complete a weld, clean off the slag, or debris, from the top of the weld. A chipping hammer and a cable brush work fine for such cleaning.