How To Creat Continuous Long
And Durable Welds With Tig Welding
By: Muna Wanjiru
Not all metals can be processed without effort
by welding procedures; there are some with very
high conductivity properties that accumulate and
generate heat almost instantly: it is the case
of aluminum and magnesium. These metals came to
be used only as late as the 1940s by means of
special welding procedures known as MIG welding
that has now been largely replaced by the
process known as tungsten inert gas or tig
welding. Presently, tig welding is used for
almost all aluminum workpieces that require
exemplary execution. The electric arc is formed
between a tungsten electrode and the metal
surface, the result being a very clean weld
without any signs of oxidation whatsoever.
Tig welding is an automatic or semi-automatic
process that allows the creation of continuous
long and durable welds that wouldn't be possible
otherwise. The best gas shield required by tig
welding is helium, argon or their mixture since,
in association, these two chemicals increase the
welding speed and the power of the process for
deep workpiece usage. However, argon is welders'
favorite gas where tig welding is concerned; the
explanation for this preference lies in the
density of the gas ?" heavier than air - and its
high quality coverage.
Why is the presence of the inert gas so
important for tig welding? The flow of argon
passes through the welding device simultaneously
with the electrode, and during the process it
acts as a shield against various contaminants
present in the atmosphere that may affect one
way or the result of the procedure. To put it in
simple words, the argon keeps the air away from
the weld area. Though tig welding can presently
be used to create all sorts of very fine welds,
steel and aluminum are still the metals the most
widely associated with the tungsten inert gas
procedure.
The pieces of equipment also need to be adjusted
to the requirements of tig welding; for instance
there are several types of joints especially
created for the purpose. We could mention
t-joints, corner joints, lap and butt joints
here, some of them need a filler rod, some
others don't. The independent form is the butt
joint where the pieces of metal are connected
along the seams. The use of each the above in
tig welding processes involves different types
of seams and placings of the metal pieces. Good
knowledge of process specificity is an absolute
must here.
Muna wa Wanjiru Has Been Researching and
Reporting on Welding for Years. For More
Information on Tig Welding, Visit His Site at
TIG WELDING
Article Source: http://www.articlesnatch.com
About the Author:
Muna wa Wanjiru Has Been Researching and
Reporting on Welding for Years. For More
Information on Tig Welding, Visit His Site at
TIG WELDING
Tags: home-and-family, home-improvement, tig
welding
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