Tips for How to MIG Weld
The avid welder should always consider tips on Metal Inert Gas (MIG) welding to determine how to make a solid weld. The revolutionary welding method of Gas Metal Arc Welding (GMAW), i.e., MIG, welding was initially developed for aluminum and other non-ferrous materials. It basically consists of a consumable wire electrode and a shielding gas that is fed to the welding gun. Welders prefer to use a MIG welding machine because it allows for less welding time compared to other conventional methods. Tips on MIG welding will help you to make a strong and stable weld. Does this Spark an idea?
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Owner's Manual
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People often ignore their owner's manuals, ending up with less than satisfying welding jobs. It is best to always read, understand and follow the safety precautions indicated in your owner's manual. This alone will show you the basics of adjusting the various settings needed to make a clean and strong weld.
Electrode Extension
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Maintain at least ¼- to 3/8-inch of electrode sticking out to make a good, strong weld. An electrode that is too long or too short will produce an unsightly weld and may sacrifice the integrity of the metal.
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Wire Sizes
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As a general rule, use a smaller diameter MIG solid wire for thin metals and a larger MIG solid wire or machine for welding thicker metals. Refer to the wire size chart indicated in your owner's manual to determine the kind of wire that is best to use for a particular gauge of metal. Be sure to use a wire that matches the kind of metal that you are welding. This simply means utilizing an aluminum wire to weld aluminum and a stainless steel wire to weld stainless steel.
Shielding Gas
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Determine the right concentration of shielding gas. Tips on MIG welding will always state that CO2 is best for penetrating welds on steel but the high temperatures may melt thin metal. Thinner metal will weld better using a mixture of 75 percent CO2 and 25 percent argon. If you plan to weld aluminum, use only argon as a shielding gas. For stainless steel, it is best to use a mixture of CO2, argon and helium to perform a good and solid weld.
Gun Handling
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How you hold the gun will also determine the strength and beauty of the weld. Always start with a clean gun liner, drive rolls and gun nozzle. Use both hands to hold the gun as you weld.
When welding on tight or awkward spots, it is best to maintain a small weld pool for proper bead control and use the smallest diameter welding wire available. The consistency of the weld bead will depend on how you direct the wire at the edge of the weld pool.
Tips on MIG welding will not only help you make a strong and properly beaded weld but will also save you time and resources in the process.
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References
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