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Welding Vocabulary

TermDefinition
Arc Voltage The voltage that runs along the welding arc.
Base Metal The metal material that will be welded or cut.
Cutting Torch Tool used in gas cutting to control the gases that are used for preheating and cutting metal.
Goggles safety equipment worn to protect the welder’s eyes from harmful radiation while welding and cutting.
Helmet protection equipment worn to protect the welder’s face and neck.
Liquidus the lowest temperature where metal becomes liquid
Melting Point the temperature that needs to be reached to allow metal to begin to liquefy.
Melting Range the range of temperatures between solidus and liquidus.
Solidus the highest temperature where a metal remains completely solid.
Tempering process of reheating hardened steel below the lowest critical temperature and then allowing it to cool to make the steel stronger.
Weld a point where metals have been fused together by heating the materials to a suitable temperature. Filler metals or pressure may be used to accomplish the weld.
Welder Certification document certifying that the welder has made his welds according to the standards prescribed.
Welding Torch tool used for gas welding to control the flow of gases used.
Acetone flammable and unstable liquid that is used to dissolve and stabilize acetylene.
Acetylene a highly combustible gas that is made of carbon and hydrogen that is used in gas welding.
Alloy a mixture of one or more elements with at least one being a metal.
Electrode various materials that are used to conduct the welding current between the electrode holder and the welding arc.
Ferrite a pure form of iron that exists below the lowest critical temperature.
Flux cleaner used to clean metals to be welded, soldered or brazed. It also dissolves rust and releases any trapped gases that may be in the metal.
Nonferrous metals that do not contain any iron. Examples of nonferrous metals include aluminum, bronze, copper, lead and titanium.
Welding Rod filler metal that comes in a rod or wire form and is used in brazing and gas welding or in arc welding where the electrode does not produce filler metal.
Arc Cutting cutting processes where materials are cut by melting that is caused by the heat of the arc between the electrode and the metal.
Arc Welding welding methods where fusion is achieved by heating the materials to be joined using an electric arc(s). This may be done with or without filler material.
Bare Metal-Arc Welding an arc welding method where fusion is accomplished by using an unshielded arc to produce heat between a bare or lightly coated electrode and the material to be welded. The filler metal comes from the electrode and pressure is not used.
Brazing a welding method using a filler metal that is liquefied at a temperature above 800 F is distributed within a groove, flange or other type of joint and distributed through the joint via capillary action.
Braze Welding a welding process where the filler metal is liquefied above 842 F and beneath the base metals’ solid state.
Carbon-Arc Welding a welding method where fusion is created by an arc between a carbon electrode and the material to be welded.
Gas Welding a welding process where a gas flame creates the welding heat.
Metal-Arc Welding a welding process where the heat produced from an arc forms a weld by fusing a metal electrode and material to be welded together.
Pressure Welding a welding process where pressure is used to make a weld.
Created by: JacobGroves
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