MIG Welding Wire Continuous : Welded indicates that specific merge operation of two or more metal parts in order to give continuity to both physical chemistry and the same term is used to indicate the actual result of: the welded joint.

The processes by which they join the metal pieces are mainly two:
- Autogenous welding or direct;
- Welding heterogeneity or indirect.

The procedure is divided in turn autogenous in two other specific procedures.
The first is called Fusion and is when the parts are welded without any material but only heating the outside edges, while the second is called “pressure” or when the flaps are to be heated together under high pressure.

The welding heterogeneity, which is what this article addresses, is a type of union that occurs by making other material which is deposited outside the body and is one with everything.

To seal so heterogeneous, the methods are different: blowtorch, coated electrodes, MIG, MAG, TIG, etc.. but here will be described only as MIG welding is easier to learn for those who are beginners and also because you can weld both small and large thicknesses.

The acronym MIG is Metal Inert Gas or natural gas in fact protected by metal during welding, the filler material is protected by an inert gas that serves to prevent oxygen from the air attacks the bathroom of the merger and also increases the mechanical properties of the weld itself.

In the market there are coils of wire (the filler material) that are coated with a special material that allows you to pay without inert gas even if the welds are a bit ‘darker and slightly poorer mechanical properties of which, it must be said, however, that this is absolutely not a problem for normal chores and then the MIG welding wire knitted and are more practical because it lacks the cylinder of inert gas that costs, heavy, and difficult to transport.

In the case of welding without protective gas, they are also called Weld Flux.

With the introduction of cored wire upholstery has been possible are creating MIG welder actually reduced in size because with this kind of spin the bottle is no longer necessary and we can now perform quick and practical welding in every seat in the house.
For example, we often find having such small tubes in the garage or garden area, in places even a little ‘uncomfortable (eg on a scale) and once the only method possible for a hobbyist was to use a normal electric arc welder , using coated electrodes, in which small weld thickness (as sheets) is impossible and then learn to weld with that type welder is much more difficult.

The only “against” that have the MIG welding is that the distance between the welder and torch may not be very long because it runs inside the wire so you’ll always have the body of the welder in your area. Nothing particularly problematic.

The advantage of MIG welding and possesses a great flexibility, allowing it to vary the speed of the wire and the intensity of welding current, and in this way, you can either solder materials is very thick and deep run in welds, or puntature On plates and thin metals.

From this we can see that joining together with a continuous wire welding, the parameters to set are: speed of the wire and electric power based, however, the wire diameter and thickness that we are welding.

Here’s how it is composed of a modern continuous wire welding machine, analyzing the functions of a standard laptop (which is what we need) but the level and quality high enough to afford to make any kind of welding.

The main components of a MIG welding are:
1) flashlight pistol;
2) ground clamp;
3) control knob wire feed speed;
4) welding, remove the lid to access the system pulls the wire and the coil of wire;
5) Switch to vary the power from minimum to maximum and vice versa;
6) switch on and off.

It would be better to avoid too cheap welding machines such as those having only one switch that changes both the speed of progress of the wire and the welding current because this reduces the potential of a MIG welder. Better to start from a model that has at least the knob for adjusting the speed of the wire, as well as obviously the switch to adjust the current on two different intensities.

The operation is as follows:
the wire, coiled on a reel installed inside the welder, is driven by two rollers feeders and slid into the guide it is connected to the gun. Via a switch on the gun, the welder starts or stops the release of the wire from the gun, and thus whether the operation of welding.

In the case of MIG welding with gas, together with the wire while escaping gas.

The wire is connected to a pole of the welding machine and once on the arc, and start welding, the melting of the wire will be exactly offset by the advanced it, or you may need to make the appropriate changes in the welding parameters.

The continuous wire welding, flux is that gas is a well balanced mix of: wire feed speed, intensity of welding current, speed of the operator, all depending on thickness of the material being welded.
With practice you will understand in what proportions to mix these “ingredients” and get good welds.

Position of the torch during welding
To learn how to weld, experiment on pieces of iron of about 6 mm thick. Solder a piece without uniting with another, but only on the surface of one.
The torch must be at a distance varying from 20 to 30 mm (at distances smaller beads are lower and vice versa) and at an angle between 5 ° and 15 ° starting from the vertical.
Have to do several tests before it can be a discrete welders. Then you can experiment welding vertical sopratesta.

Security
Remember to always use the appropriate clothing, gloves and protective mask for the eyes, never looking directly pay the intense light that emanates the arc without using the appropriate mask.