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.
