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Autogenous Welding

Last updated: June 3, 2018

What Does Autogenous Welding Mean?

Autogenous welding is a process that coalesces two or more metals without the addition of filler metal. Autogenous welding can be performed on many different joint types. A wide variety of materials and welding processes can be used for autogenous welding.

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Corrosionpedia Explains Autogenous Welding

Autogenous welding can be used for many different welding processes. Some processes, such as gas tungsten arc welding or oxyacetylene welding, can use either filler metal or be autogenous. Processes like gas metal arc welding can never be autogenous because the welding process itself is defined by the consumable filler metal electrode. Laser beam welding or electron beam welding are almost always autogenous because the addition of filler metal is difficult to incorporate with these processes.

Perhaps the most common type of joint for autogenous welding is the edge joint. Other common autogenous welding joints include the lap joint and the corner joint. The tee joint is one type of weld joint that should never be joined autogenously. Since there is no additional metal added to the joint, metal is taken from the base material, thus reducing the intended strength of the base material.

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