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sales promotion girls should be able to market a product and explain its superiority. for example on car products. spg could explain that the car was assembled using mig welding techniques are very powerful. Until no visible defects, iron builders feels light and soft, invisible even nickel alloy, that's greatness oxy laser welding machine in a perfect result. MIG welding is useful because can use to weld many different types of metals: carbon steel, stainless steel, aluminum, magnesium, copper, nickel, silicon bronze and other alloys.

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cars that accompanied the product look more attractive spg, spg this could explain the benefits of the car, this car was designed with mig welding. She explained The primary advantage of MIG welding is that it allows metal to be welded much quicker than traditional welding "stick welding" techniques. This makes it ideal for welding softer metals such as aluminum. When MIG welding was first developed, the cost of the inert gas (i.e., argon) made the process too expensive for welding steel. However, over the years, the MIG welding process has evolved and semi inert gases such as carbon dioxide can now be used to provide the shielding function which makes MIG welding cost effective for welding steel.

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 This is a basic guide on how to weld using a metal inert gas (MIG) welder. MIG welding is the awesome process of using electricity to melt and join pieces of metal together. MIG welding is sometimes referred to as the "hot glue gun" of the welding world and is generally regarded as one of the easiest type of welding to learn.

**This Instructable is not intended to be THE definitive guide on MIG welding, for that you might want to seek out a a more comprehensive guide from a professional. Think of this Instructable as a guide to get you started MIG welding. Welding is a skill that needs to be developed over time, with a piece of metal in front of you and with a welding gun/torch in your hands.
MIG welding was developed in the 1940's and 60 years later the general principle is still very much the same. MIG welding uses an arc of electricity to create a short circuit between a continuously fed anode (+ the wire-fed welding gun) and a cathode ( - the metal being welded).

The heat produced by the short circuit, along with a non-reactive (hence inert) gas locally melts the metal and allows them to mix together. Once the heat is removed, the metal begins to cool and solidify, and forms a new piece of fused metal.

A few years ago the full name - Metal Inert Gas (MIG) welding was changed to Gas Metal Arc Welding (GMAW) but if you call it that most people won't know what the heck your talking about - the name MIG welding has certainly stuck.

MIG welding is useful because you can use it to weld many different types of metals: carbon steel, stainless steel, aluminum, magnesium, copper, nickel, silicon bronze and other alloys.

Here are some advantages to MIG welding:

• The ability to join a wide range of metals and thicknesses
• All-position welding capability
• A good weld bead
• A minimum of weld splatter
• Easy to learn

Here are some disadvantages of MIG welding:

• MIG welding can only be used on thin to medium thick metals
• The use of an inert gas makes this type of welding less portable than arc welding which requires no external source of shielding gas
• Produces a somewhat sloppier and less controlled weld as compared to TIG (Tungsten Inert Gas Welding)

first.. you know about mig welding

MIG (Metal Inert Gas) welding, also sometimes called GMAW (gas metal arc welding), is a welding process that was originally developed back in the 1940's for welding aluminum and other non-ferrous metals. MIG welding is an automatic or semi automatic process in which a wire connected to a source of direct current acts as an electrode joins two pieces of metal, as it is continuously passed through a welding gun. A flow of an inert gas (originally Argon) is also passed through the welding gun at the same time as the wire electrode. This inert gas acts as a shield, keeping air borne contaminants away from the weld zone.

The primary advantage of MIG welding is that it allows metal to be welded much quicker than traditional welding "stick welding" techniques. This makes it ideal for welding softer metals such as aluminum. When MIG welding was first developed, the cost of the inert gas (i.e., argon) made the process too expensive for welding steel. However, over the years, the MIG welding process has evolved and semi inert gases such as carbon dioxide can now be used to provide the shielding function which makes MIG welding cost effective for welding steel.

MIG Welding

Gas Metal Arc Welding (GMAW) is frequently referred to as MIG welding. MIG welding is a commonly used high deposition rate welding process. Wire is continuously fed from a spool. MIG welding is therefore referred to as a semiautomatic welding process.

MIG Welding Benefits

* All position capability
* Higher deposition rates than SMAW
* Less operator skill required
* Long welds can be made without starts and stops
* Minimal post weld cleaning is required

MIG Welding Shielding Gas

The shielding gas, forms the arc plasma, stabilizes the arc on the metal being welded, shields the arc and molten weld pool, and allows smooth transfer of metal from the weld wire to the molten weld pool. There are three primary metal transfer modes:

* Spray transfer (MP3 Audio)
* Globular transfer (MP3 Audio)
* Short circuiting transfer (MP3 Audio)

The primary shielding gasses used are:

* Argon
* Argon - 1 to 5% Oxygen
* Argon - 3 to 25% CO2
* Argon/Helium

CO2 is also used in its pure form in some MIG welding processes. However, in some applications the presence of CO2 in the shielding gas may adversely affect the mechanical properties of the weld.

Common MIG Welding Concerns

We can help optimize your MIG welding process variables. Evaluate your current welding parameters and techniques. Help eliminate common welding problems and discontinuities such as those listed below:

Weld Discontinuities

* Undercutting
* Excessive melt-through
* Incomplete fusion
* Incomplete joint penetration
* Porosity
* Weld metal cracks
* Heat affected zone cracks


MIG Welding Problems

* Heavily oxidized weld deposit
* Irregular wire feed
* Burnback
* Porosity
* Unstable arc
* Difficult arc starting

If your company is experiencing these or other welding problems you can retain AMC to improve your weld processing. Hire AMC to act as your welding specialist.