Mig welding is just another name for Wire feeder welding. The fundamental idea behind wire feed welding is that you use a welding wire that constantly feeds through a MIG welding gun when you grip the trigger.

This is a nonstop welding process. You keep your finger on the trigger and the base metal, welding wire touching you can do wire feed weld all day. There are many different types of welding wire. You can use for many different welding applications.

Welding wire is the most commonly used for more than likely an AWS ER70S-6 classification wire. This welding wire is used fabrication shops and all welding for many different types of welds.

A cover wound wind of wire will be evenly wound onto the spool from left to right with each and every layer of wire in order to sitting next to the other. This type of process a lot better for wire feedability as there will be no bends and little kinks in the wire feed.

Random wound will be exactly random wound wire in any old type of fashioned.Because the wire is wound on the spool with each and every layer in a random fashion, the wire will cross over itself a a small amount of times. The spool starts to fill up with the wire feed, each and every time there is a intersect of the wires it can make a little bend in the wire.

These little bends in the wire can damage your wire feedability which in turn will affect your overall weld quality and feed.

When you are using a MIG welding machine or a wire feed welding machine you have welding consumables that need replacing on a regular basis. Every MIG welding machine gun will have a shroud and contact tip or a nozzle. And then depending on which type of brand welding torch you have there will also be a gas diffuser or some kind of insulator.

I guess that most home welders or DIY will use what is meant by gasless welding wire. This process is also known as a flux cored wire. Be careful though because there are two different types of flux cored welding wires. There are a lot more than two, but for general home welding wire feed make sure that you get a gasless MIG welding wire feed that is an E71T-GS.

Now if you want to do decide to use a gasless MIG welding wire you are going to have to modify the wire feed rolls. The reason for this mig welding wire is because it is a flux cored wire the wire is not solid all that way through. The flux is on the in the interior of the wire the wire is very soft.

So if the wire diameter is for dispute sake 0.9 mm you need to use a 1.0 mm get in touch with tip. This will really help with the smooth feeding of the wire and allow better welding.

Finally you're going to have to use a a little larger get in touch with tip for when you use a flux cored wire.