tack weld meaning: definition, quotations

tack weld

verb

To position and secure pieces of work using small welded joints at isolated points (typically, in preparation for the final weld).

Three rolled sheets are clamped together and to a form and are then tack welded into place.1923 June, “Fabricating Storage Tanks by Oxy-Acetylene Welding”, in Acetylene Journal:

noun

A small, isolated weld used to position and secure pieces of work (typically, in preparation for the final weld).

A large number of very small tack welds should be used on thin metal sections, while a few larger tack welds may be used for thicker metal parts.2011, Larry Jeffus, “Fabricating Techniques and Practices”, in Welding: Principles and Applications:

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