Learning How To Work With
Welding Symbols
By: Muna Wanjiru
Like in all domains that require precision of
execution, welding makes use of conventional
standard signs that help to the better execution
of a weld according to blueprints. The welding
symbols systematized by the American Welding
Society indicate the exact place where welds
need to be made, the kind of joint necessary for
it and the amount of filler to be used in the
joint. Learning how to work with welding symbols
is part of the training programs welders have to
attend before receiving any certifications. What
do welding symbols actually consist of? The main
basic elements are the arrow, the reference line
and the tail.
All welding symbols are built starting from the
reference line, this is the very foundation of
the sign as such on which you add other data
necessary for the process. The connection
between the reference line and the joint area is
made by the arrow, but the direction of the
arrow has no influence on the meaning of the
reference line. Last but not least, the tail is
not a compulsive element of all welding symbols,
some have it, others don't. It is generally used
in case you want to add some information or
supplementary specification to the process.
There are all sorts of peculiarities connected
to the use of welding symbols. For instance, if
any signs are included in the lower part of the
reference line, you'll have to make the weld on
the side of the joint indicated by the tip of
the arrow. In case the welding symbols are
present on the upper side of the reference line,
then the weld needs to be made on the side
opposite to the direction pointed by the tip of
the arrow. Both sides of the joint must be
welded when you have signs included on both
sides of the reference line. Deciphering such
instructions from blueprints is essential for
the proper working of the welding process.
Two kinds of welding symbols may appear on the
reference line and they are essential when it
comes to understanding how to make a specific
weld. The most important sign here is a circle
that means ?oewelding all around”, thus, you
will have to make the weld all around the joint
in the direction indicated by the tip of the
arrow. Sometimes it is not possible to weld
around one single surface, and in such cases,
the presence of the circle would be incorrect.
Under such circumstances there should be other
specificities related to the process.
Muna wa Wanjiru Has Been Researching and
Reporting on Welding for Years. For More
Information on Welding Symbols, Visit His Site
at Welding Symbols
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 Welding Symbols, Visit His Site
at Welding Symbols
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symbols
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