Welding Terminology
Welding
has plenty of Welding Terms that go along with learning the trade. Learn
Welding and about Welding Terms.
If you are interesting in welding there are many different
terms that you will want to familiarize yourself with in order to read
magazines or books on the topic. Here is a list of common terms that are
important to know:
ACETYLENE — this is a gas that you will be working with to
do welding. It is a very flammable gas so you have to be careful with it. This
gas is made up of carbon and hydrogen and it is used in the oxyacetylene type
of welding process.
AIR-ACETYLENE — this is a flare that you can produce using
low temperature. It is created when you burn acetylene with air and not oxygen.
AIR-CARBON ARC CUTTING (CAC-A) — this is a way of arc
cutting where you melt metals through the heat of a carbon arc.
ALLOY — this is a mix that has metallic properties because
it has at least one element that is metal, but it can have several other things
in the mix as long as one is metal.
ALTERNATING CURRENT — a current that goes backward and
forward at regular intervals (see DC Current).
BACK FIRE — this is the popping sound that you hear when
you turn on the acetylene torch when you connect it with fire. It is created
because the flame turns back into the tip for a moment and then comes back out
of the torch as a flame.
BACKHAND WELDING — this is a special welding technique
where you point the flame at the weld that is already completed.
BACKING STRIP — this is a strip of material that you will
use when you need to keep metal that is melted at the bottom of the weld. You
may also use this strip to add strength to the thermal load of a joint so you
can stop the base of the metal from warping too much.
BASE METAL — this is what you call the metal that you are
going to weld or that you are going to cut. If this is an alloy, it will be the
metal that you have in the highest amount.
BRAZING — this is actually several welding processes. You
will use this when you have a groove, fillet, lap or flange joint that you need
to bond. This will require a nonferrous filler metal that has a melting point
higher than 800 degrees F (427 degrees C) but less then your base metals. Then, the filler metal will be distributed
throughout the joint using capillary attraction.
DIRECT CURRENT (DC) — a current that only flows in one
direction — forward.
- Flows in one direction and does not reverse its direction
of flow.
DEFECT — there can be defects in your weld after you create
it. The main defects you can find are things like cracks, porosity, places
where the metal has been undercut , or where you have a slag inclusion.
EDGE JOINT — this is where you set two plates
and put them together at a 90 degree angle with their outer edges.
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Tags: acetylene torch, alloy, back fire, cac, carbon arc, element, flame, flammable gas, flare, hydrogen, intervals, low temperature, magazines, metallic properties, metals, oxygen, welding process, welding technique