One of the most widely used types of welders is the MIG welder. The process of welding that a MIG welder uses is called gas metal arc welding (GMAW). These welders work by feeding a wire which is the electrode through a welding gun. At the same time there is a continuous flow of inert shielding gas. This protects the weld while it cools.
The most common gases used are carbon dioxide for general purpose welding. It is the cheapest of the welding gases, and creates a good weld. Argon and carbon dioxide is also used in a mixture to have a welding arc with less spatter, giving cleaner welds. Pure argon gas is used to obtain the best welds when welding aluminum.
The GMAW process have a number of advantages over the other common welding processes. The welding gun has a trigger to control the electrode which allows you to position it without accidentally striking an arc. When you have it in the correct place all you have to do is flip down your helmet and pull the trigger.
The inert shielding gases make the welds smooth and clean. There is no slag to chip off. MIG welders are also very well suited to weld sheet metal and thinner metals. This is because they can weld at lower amperage than most welders. MIG welders always use DC current to strike the welding arc. This is because using alternating current doesn’t give you a steady arc.
On a MIG welder you can adjust the voltage, amperage and the speed at which the wire is fed through the welder. The tensioner on the welding wire is variable as well They will also have a valve to control the flow of gas.
It is also possible to use a mig welder without the shielding gas. This is called flux cored arc welding (FCAW). Most welders have the option of switching the polarity of the welding arc for use with flux cored wire. In this welding process the welding wire has a hollow core that is filled with flux.
Flux cored arc welding can be done outside, because there is no need to worry about the shielding gas being blown away. The flux core wire has a hotter arc and therefore can be used to weld thicker pieces of metal. The disadvantages of FCAW are that you have to remove the slag from the weld similar to welding with a standard stick welder. It cannot generally be used to weld thinner sheet metal and other light metals.
MIG welders can be used to weld aluminum, tin, copper, zinc and brass., and steel. There are dozens of different compositions of MIG welding wires to choose from. This means you can get the best combination for almost any welding situation. MIG welders are the ideal choice if you only want to buy one welder, and still be able to weld on a variety of metals. If you want to start welding, a MIG welder would probably be your best choice for a welder that is very versatile and easy to learn on.
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Mk Products Cobramatic Push Pull Welder Mig Aluminum No Reserve | ||||
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| From rip11981 (100.0% Positive) can be shipped to US for $50.00 from Largo, Florida, US. | |||||
| $400.00 USD (11 Bids) | Ends: 7 hours | ||||
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Eastwood Mig135 Mig Welder 110vac 135 Amp Output Welding free fast shipping – 100% satisfaction – easy returns | ||||
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| From The Eastwood Company (99.9% Positive) can be shipped to US for Free from Pottstown, PA, US. | |||||
$299.99 USD  |
Ends: 14 day 10 hours | ||||
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Miller Dimension 652 Mig Welder | ||||
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| From craigkenworthy21 (100.0% Positive) can be shipped to US for $250.00 from lubbock, TX, US. | |||||
| $2400.00 USD |
Ends: 8 hours | ||||
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Lincoln Electric Weld Pak 3200 Hd Mig Welder | ||||
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| From Motor City Pawn (99.6% Positive) can be shipped to US for $0.00 from Roseville, Michigan, US. | |||||
| $355.00 USD (25 Bids) | Ends: 11 hours | ||||
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Tillman Mig Welding Gloves (deer Skin) | ||||
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| From jdolalde (100.0% Positive) can be shipped to US for $5.99 from League City, Texas, US. | |||||
| $9.99 USD (0 Bids) | Ends: 17 hours | ||||
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Miller Passport Plus Suitcase Mig, Stick Portable Welder Pkg ~ Great With Bobcat no reserve ~~ sold regardless of $$ ~~ starts @ .99 cts | ||||
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| From Pinnaclesells (99.4% Positive) can be shipped to US for $48.95 from Santa Rosa Beach, US. | |||||
| $995.00 USD (22 Bids) | Ends: 21 hours | ||||
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Nib Lincoln Weld Pak 140hd Mig, Wire Feed Electric Welder, Model 2514-1, Save!! no reserve, completely new. | ||||
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| From tool.express.liquidator (99.7% Positive) can be shipped to US for $65.00 from SOUTH EAST US, US. | |||||
| $395.00 USD (15 Bids) | Ends: 21 hours | ||||
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Miller Millermatic 211 W/autoset Mig Welder Pkg 907422 | ||||
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| From Welding Supplies From Ioc (100.0% Positive) can be shipped to US for Free from INDIANAPOLIS, US. | |||||
| $995.77 USD (306 Bids) | Ends: 17 day 13 hours | ||||
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Mig 100 Amp Mig Welder 90 Amp Mig Welder 100 Amp Wire Welder Flux | ||||
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| From Toolprice Power Hand Air Tools (98.9% Positive) can be shipped to US for Free from Toolprice, US. | |||||
| $149.99 USD |
Ends: 1 day | ||||
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Lincoln Tig 250 Stick & Tig Welder + Lincoln Wirematic 250 Mig With Spool Gun | ||||
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| From ralfnmiranda (100.0% Positive) can be shipped to None for $0.00 from Metropolis, Illinois, US. | |||||
| $3500.00 USD |
Ends: 1 day 1 hours | ||||
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135 Amp Flux/mig Welding Machine Etl/cetl Certified New | ||||
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| From A Unlimitedtoolz (99.5% Positive) can be shipped to US CA for Free from Alhambra, California, US. | |||||
| $349.99 USD (0 Bids) | Ends: 1 day 8 hours | ||||
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Lincoln Electric Welder Nascar Performance Pro-mig 140 * No Reserve * | ||||
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| From justforhome09 (93.9% Positive) can be shipped to US for Free from MCDONOUGH, GA, US. | |||||
| $355.00 USD (19 Bids) | Ends: 1 day 9 hours | ||||
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220v 151 Co2 Gas Flux Mig Welder 120amp Gas Mag Welding Machine W/ Wheels | ||||
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| From Econo Super Store (98.8% Positive) can be shipped to US CA for Free from Brea, California, US. | |||||
| $269.99 USD (0 Bids) | Ends: 1 day 14 hours | ||||
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Miller Dimension 452 903254 Mig Welder | ||||
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| From jmsldvs (0.0% Positive) can be shipped to None for $0.00 from Lueders, TX, US. | |||||
| $311.00 USD (12 Bids) | Ends: 1 day 15 hours | ||||
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Millermatic 252 Mig Welder Complete Package 907321 | ||||
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| From Welding Supplies From Ioc (100.0% Positive) can be shipped to US for Free from INDIANAPOLIS, US. | |||||
| $2102.77 USD (104 Bids) | Ends: 17 day 12 hours | ||||
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Mig-195 Gas / No Gas Dual Mig Welder Flux 220v 190 Amp | ||||
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| From Inspiredepot (99.1% Positive) can be shipped to Americas for Free from Pomona, US. | |||||
| $299.99 USD (0 Bids) | Ends: 1 day 17 hours | ||||
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Mig-175 Gas / No Gas Dual Mig Welder Flux 220v 170 Amp | ||||
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| From Inspiredepot (99.1% Positive) can be shipped to Americas for Free from Pomona, US. | |||||
| $279.99 USD (0 Bids) | Ends: 1 day 17 hours | ||||
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Mig-150 Gas / No Gas Dual Mig Welder Flux 220v 150 Amp | ||||
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| From Inspiredepot (99.1% Positive) can be shipped to Americas for Free from Pomona, US. | |||||
| $249.99 USD (0 Bids) | Ends: 1 day 17 hours | ||||
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Mig-100 Gas-less Flux Core Wire Welder Welding Machine With Cooling Fans New 4 heat range setting | ||||
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| From Inspiredepot (99.1% Positive) can be shipped to Americas for Free from Pomona, US. | |||||
| $139.99 USD (0 Bids) | Ends: 1 day 17 hours | ||||
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Mig-130 Gas-less Flux Core Wire Welder Welding Machine With Cooling Fans | ||||
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| From Inspiredepot (99.1% Positive) can be shipped to Americas for Free from Pomona, US. | |||||
| $159.99 USD (0 Bids) | Ends: 1 day 17 hours | ||||
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