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Arc efficiency of TIG welding

Arc efficiency of TIG welding

Arc efficiency of TIG welding

(OP)
Hi all, why the arc efficiency in TIG welding is less as compared to other arc welding processes?
I define arc efficiency as

"Actual power available for melting the work piece/Total power delivered by power source "

RE: Arc efficiency of TIG welding

Interesting question. But out of curiosity why is arc efficiency a concern for you? The TIG process has advantages over other fusion welding processes for many applications. Is electrical power consumption really a significant concern for your particular application, as opposed to other factors like weld quality?

RE: Arc efficiency of TIG welding

(OP)
My concern was actually that why TIG is limited to small thickness parts? I have learnt that TIG has lowest arc efficiency so i thought that perhaps this could be the reason

RE: Arc efficiency of TIG welding

GTAW is routinely used on very thick parts in various industries, especially in machine GTAW applications (such as the power piping industry.) In many instances, it offers a higher percentage of first time quality compared to other processes, and can offer improved material properties in certain applications. However, it is low-deposition compared to many wire-fed processes, which increases production time, and in some cases, distortion. It may also require an added degree of cleanliness to achieve satisfactory results.

Consequently, it is more expensive.

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