How To Weld - Choosing the Correct Process

Learning how to weld can be as easy or as complex as you make it. Virtually each welding job will have different requirements involving the substance to be welded, the type of filler metal for the weld and the welding process itself. Some processes such as Mig or Tig welds can be used on substances that were different as long as the welding equipment is set up to accommodate that particular material.

General Welding Processes

There are three Power Welding Electrodes which are used in welding assignments, manufacturing businesses and for home design and farm use.

Mig Welding

Mig stands for Metal Inert Gas or The Gas Metal Arc Welding process (GMAW). This process in probably the most common process today. Its basically an arc welding process which utilizes a continuous wire feed of an electrode that's shielded using an external gas source. The components to compose the welding system comprises of the wire feed unit, a cable and weld gun in addition to the welding power source. Shielding gas is fed via the welder cable along with the electrode.

Being the most versatile this is the easiest way to learn how to weld sheet metal through to heavy work and how to heavy plate. The flexibility of a Mig means they can be used in all positions, can weld different materials such as mild steel, stainless steel or aluminum, and in most thicknesses. A correctly set up machine will produce high quality welds that need minimal clean up.

The Tig Welding Process

Stands for Gas Tungsten Arc Welding (GTAW) or much more commonly Tungsten Inert Gas process (TIG)

Learning how to Tig weld is more difficult than the mig process as the operator must control the welding torch and the filler material concurrently. The process involves an arc being struck to the job using a tungsten electrode in the hand-piece, filler material is then applied through the resulting arc. In some instances such as sheet metals no more filler rods are used as the join can be fused together using the arc. Clearly this requires a neat joint without gaps.

Tig welds preformed properly will give an outstanding quality finish with high strength. They need minimal clean up as there is no slag or soot to bargain with. Most effective for welding stainless steel and aluminum sheet metals, pipe work and products needing a neat clean finish.

Arc Welding.

Next to gas the Arc welding process is the oldest of welding processes. Nevertheless used widely in industry and for home use learning how to arc weld is a somewhat easier process. However having said that the application of the process can be complicated in the choice of welding electrodes. Arc weld electrodes have a flux coating that generates a shielding gas to protect the metal from atmospheric contaminants, they increase deposition levels and covers the weld with a slag coating. There are lots of specialist electrodes available such as for hard facing and pipeline welds which are needed to have x rays for quality. Hard Facing Electrodes Manufacturers are many, you can find the best with Nishit Thermit Alloys Pvt Ltd.

Arc welding can be used for welding mild steel, hardened steels, stainless steel, cast iron and numerous specialty steels. Slag deposits require removal so some clean up is needed. Numerous electrodes need less or more clean up.

As arc welders do not require an external gas resource they are ideal for outdoor and site work, and are widely used in maintenance and construction work.

Nishit Thermit Alloys Pvt Ltd are the best Hard facing Electrodes Suppliers.