Posts Tagged ‘Mig Welding Machine’

MIG Welding – Don’t take it too lightly!!

Friday, February 4th, 2011

Metal inert gas (MIG) welding is the most common form of industrial welding. It is also called as metal active gas (MAG) welding and gas metal arc welding (GMAW). It is the common method of welding used universally, however it’s the most dangerous method as well. Even though MIG Welding is the easiest process to learn, it requires thorough training for handling the wide range of industrial situations.

The major danger associated with the MIG welding is the fire. The light and the sparks will cause permanent damage to the eyes. So it’s better to wear protective clothing and have the safety gear on. Even the fragments of metal are highly dangerous, so make sure the workshop has good ventilation facilities and it’s preferable to wear a mask. Instead of a fire extinguisher you can even use a bucket of sand to saturate flames, which is as effective as an extinguisher and it’s cheaper.

MIG welding can be taken as a career as MIG welders are in good demand and can have a high income career. There are specific an advance level training given in the MIG schools. These two trainings help the MIG welders to learn and earn.

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Factors to consider while choosing MIG welder:

Thursday, November 4th, 2010

• MIG welders come in 115-volt or 230-volt models. A 115 volt welder works well for thinner metals; 230 volt models can accommodate metals up to 1 1/2 inches thick. Decide what voltage you require.

• Decide on the length of duty cycle you require. For instance, duty cycle indicates how many minutes a welder can operate in a 10 minutes period without overheating.

• Find out if you need to weld using multiple wire thicknesses. For example, some MIG welders work better for small jobs using 0.03 inch wire.

• Decide what types of metal you will weld.

• Decide if you want to shield with pure carbon dioxide or if you want to shield with an argon and carbon dioxide mix. The compressed gas protects the pool of heated metal from elements in the air. For instance, normal air contains hydrogen, nitrogen and oxygen.

• Compare features. Many features include overload protection, short-circuit protection and a contactor.

• Make sure MIG welder fits your budget.

• Compare warranties. Your MIG welder should come with a warranty that ranges from two to three years.

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How to buy the mig welders for sale:

Wednesday, September 22nd, 2010

A welder is a machine or welding equipment that the weldor makes to weld and different types of welder machines are available for different types of welding process. Mig welding that is also called as gas metal arc welding use the mig welder for its process. Cost and budget is important when buying the mig welder and it is of your choice to buy the welders. The different types of mig welder available are used mig welders, cheap mig welder, reconditioned mig welder and more. Before buying the mig welders for sale, be sure that your work location can accommodate it. Compare the duty cycles, its features, warranties and depending upon your requirement choose the welder. If you want 250 amps constant output use 200 welder or of you want 250 amps output choose 250 welder. Similarly there are also 160 welders, 135 welders and more depending upon the requirements.

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Things to look into when you buy an expensive MIG welder

Tuesday, August 31st, 2010

If you notice quality of MIG welders have come down as most of them are manufactured in Eastern Europe and China. If you buy cheap MIG welders you have to compromise on functionality. The major advantage of buying a slightly more expensive welder is that wire feed control automatically varies according to power. Wire speed knob does not require fiddling when you change power settings. If you buy one of these you will never regret. In addition, if you buy a slightly expensive welder you can get a good sized feed motor and a quality wire feed mechanism. If you buy an expensive MIG welder which will cost somewhere around £200 to £500 you can avail more benefits in the long run. Generally expensive welders have two controls –one for power and the other for wire speed. Another control is spot timer.

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What is MIG Welding and what are its Types

Thursday, May 13th, 2010

MIG welding is expanded as Metal Inert Gas. This methodology of welding is popularly known as Gas Metal Arc Welding. The process involved in MIG welding is to make use of the aluminum alloy wire along with the blend of filler material and electrode. This process is carried on by the welder who is well averse about the facts of MIG welding and its types in it. This weld procedure is one of the simplest procedures.

Any person who is willing to learn this process of weld can learn it as it is very easy to handle the weld. Metal Inert Gas welding is also termed as semi-automatic weld as for the reason most of its welding procedure is carried on with the help of machine which is specifically designed for this purpose.

There are two procedures in MIG welding. They are:

  1. Weld by Conventional Metal Inert Gas – this weld technique is best suited to mold the materials whose thickness is above 4mm.
  2. Weld by Pulsed Metal Inert Gas – this weld technique is best suited to mold the thinner materials and this can be carried on in any position of weld.
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Two Basic Mistakes Of MIG Welding

Saturday, April 17th, 2010

When it comes to MIG Welding, the two main mistakes a lot of beginners do is the stickout problem, and the ground problem. There is nothing like you can not rectify a welding mistake that you do, it is always advisable to be careful with the gas type, gas shielded or flux core, size and type of wire that you choose for your welding.

The first mistake anyone does is when there is a bad ground. This problem happens when your wire feeder doesn’t suit with the ground and resulting in pumping wire. The best solution to offer in thin case is to better go for a good ground clamp or try using a piece of copper to glide under one of the jaws. Try grinding a small area clean and then attach the clamp in that spot. You will se that your MIG welding is way better than normal.

The second mistake is the Stickout problem. This problem happens when the stick out distance is too much. A half an inch of stickout is ideal for a perfect MIG Welding

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MIG Welding and its Types

Thursday, February 18th, 2010

Metal Inert Gas in short term known as MIG welding. It is popularly known as Gas Metal Arc Welding. In Mig welding process the usage of aluminum alloy wire with the combination of filler material and electrode are used by the welders. The process is one of the easiest processes that one can learn to weld. As the welder is capable of meeting all the parameters of welds with the help of machine it can also be termed as semi-automatic weld.

Mig welding can be carried on at two different processes they are:

  • Conventional Metal Inert Gas weld-
    In this process of welding it uses DC power source with constant voltage. As there is limitations for the spray transfer, for the arc current the welding has its lower limits. Since it is limited to certain range it can weld materials where the thickness being above 4 mm.
  • Pulsed Metal Inert Gas weld-
    Here the passage of DC power source is retained at low and high intervals. When the welds are done at low current welders maintain the arc without transferring metals. And during the high current passage metals are transferred in spray mode. Therefore this makes Pulsed welding process to weld at high and low heat inputs which is not possible in conventional process. And the possibility of welding thinner materials is much easier at any positions.
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