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Frequently Asked Questions


Here at Alloy Weldworks we specialize in many forms of welding and fabrication. Below are a few frequently asked questions to help better inform you about some of our techniques. If you don't find the answer that you're looking for below, please contact us anytime, as we're happy to help.


What is TIG Welding?


TIG (Tungsten Inert Gas) In TIG welding, a tungsten electrode heats the metal you are welding and gas (most commonly Argon) protects the weld puddle from airborne contaminants. TIG welding produces clean, precise welds on any metal.


What is MIG Welding?


MIG welding is an arc welding process in which a continuous solid wire electrode is fed through a welding gun and into the weld pool, joining the two base materials together. A shielding gas is also sent through the welding gun and protects the weld pool from contamination. In fact, MIG stands for "Metal Inert Gas." The technical name for it is "Gas Metal Arc Welding" (or GMAW), and the slang name for it is "wire welding."


What is Brazing?


Brazing is a metal joining process where by a filler metal heated above melting point and distributed between two or more close-fitting parts by capillary action filler metal is brought slightly above its melting (liquidus) temperature while protected by a suitable atmosphere, usually a flux. It then flows over the base metal (known as wetting) and is then cooled to join the work pieces together. It is similar to soldering, except the temperatures used to melt the filler metal are higher.


Can different metallic materials be welded together?


Yes and no; Some materials can be brazed or soldered together, i.e. Aluminum to Brass.


What is Plasma Cutting?


Plasma cutting is a process that is used to cut steel and other metals of different thicknesses (or sometimes other materials) using a plasma torch. In this process, an inert gas (in some units, compressed air) is blown at high speed out of a nozzle; at the same time an electrical arc is formed through that gas from the nozzle to the surface being cut, turning some of that gas to plasma. The plasma is sufficiently hot to melt the metal being cut and moves sufficiently fast to blow molten metal away from the cut.

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