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gas tungsten arc welding

KOBELCO Welding Handbook - Welding Consumables and Processes.pdf

May 13, 2009 · Filed Under Mechanical & Industrial Engineering · 1 Comment  · Tags: , , , , ,

This welding handbook was issued by Kobe Steel Ltd., involving new group brand names and the corresponding products such as FamiliARC, TrustARC, and PremiARC. This handbook also informs various tips and tricks to get a better welding result by maintaining the welding parameter to prevent welding defects such as hot cracking, selecting proper wires, not to cause the deformations of wires and more.

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Miller - Guidelines For Gas Tungsten Arc Welding (GTAW).pdf

July 13, 2008 · Filed Under Mechanical & Industrial Engineering · 1 Comment  · Tags: , , ,

Gas Tungsten Arc Welding (GTAW), also known as tungsten inert gas (TIG) welding is a process that produces an electric arc maintained between a non consumable tungsten electrode and the part to be welded. The heat-affected zone, the molten metal and the tungsten electrode are all shielded from atmospheric contamination by a blanket of inert gas fed through the GTAW torch. Inert gas (usually Argon) is inactive or deficient in active chemical properties. The shielding gas serves to blanket the weld and exclude the active properties in the surrounding air. Inert gases such as Argon and Helium do not chemically react or combine with other gases. They pose no odor and are transparent, permitting the the welder maximum visibility of the arc. In some instances Hydrogen gas may be added to enhance travel speeds.