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 How To Tig Weld 

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Welding secrets for beginners and experts, everything you need to know about welding is covered, mig, tig, arc and gas welding . A comprehensive download able welding manual covering welding materials, processes, safety, welding equipment, tools, painting, and more. Highly recomended


Tig Welding

Gas tungsten arc welding (GTAW), commonly known as tungsten inert gas (TIG) welding, is an arc welding process that uses a non consumable tungsten electrode to produce the weld. The weld area is protected from atmospheric contamination by a shielding gas (usually an inert gas such as argon), and a filler metal such as aluminium or stainless steel is normally used, though some welds, known as autogenous welds, do not require it. In this instance the metals are simply fused together.  A constant-current welding power supply produces energy which is conducted across the arc through a column of highly ionized gas and metal vapors known as a plasma.

Gas tungsten arc welding is most commonly used to weld stainless steel and light nonferrous materials, such as aluminum and magnesium, but it can be applied to nearly all metals, with notable exceptions being lead and zinc. Its applications involving carbon steels are limited not because of process restrictions, but because of the existence of more economical steel welding techniques, such as mig welding and arc welding.  Tig welding can be performed in a variety of other-than-flat positions, depending on the skill of the welder and the materials being welded, allthough when learning How To Tig Weld the prefered practice position would be flat or downhand.

The tig welding process gives  the operator greater control over the weld than competing procedures such as shielded metal arc and gas metal arc welding, allowing for stronger, higher quality welds. However, tig is comparatively more complex and difficult to master, and  is significantly slower than most other welding techniques such as mig or arc welding. A related process, plasma arc welding, uses a slightly different welding torch to create a more focused welding arc and as a result is often automated.

Manual gas tungsten arc welding is often considered the most difficult of all the welding processes commonly used in industry. Because the welder must maintain a short arc length, great care and skill are required to prevent contact between the electrode and the workpiece. Unlike other welding  processes, learning hot to tig weld  normally requires two hands, since most applications require that the welder manually feed a filler metal into the weld area with one hand while manipulating the welding torch in the other. However, some welds combining thin materials ( fusion welds) can be accomplished without filler metal; most notably edge, corner and butt joints.

Although tig welding at first appears complicated the skill is easy to aquire through practice and tuition and when accomplished is the one of most satisfying and rewarding of welding operations. Reasons for this are very little cleaning of the weld is required, the finished weld is neat & tidy allowing an artistic feel to the work. Examples of quality tig welds are seen on bicycle frames, marine fittings, interior kitchen fittings and steel artwork.

How To Tig Weld Resources

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The Eastwood Company Welding & Metal Finishing

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