O termo usado na indústria para SOLDA DE PONTO é tack weld.
Basta ver na web o número de ocorrências.
What Is Tack Welding?
'After items to be welded together have been positioned as required, generally by clamping them on suitable fixtures, tack welds are used as a temporarymeans to hold the components in the proper location, alignment, and distance apart, until final welding can be completed.
In short-production-run manual welding operations, tack welding can be used to set up the workpieces without using fixtures. Typically, tack welds are short welds. In any construction, several tack welds are made at some distance from each other to hold edges together.
An advantage of this provisionalassembly procedure is that if the alignment for final welding is found to be incorrect, the parts can be disassembled easily, realigned, and tack welded again.
In general, tack welding is performed by the same process that is used for the final weld. For example, aluminum-alloy assemblies to be joined by friction stir welding are tack-welded by the same process using a small tool developed for this purpose. Or electron beam tack welds, created with reduced power, are used to supplement or replace fixturing and to maintain the correct shape and dimensions during final electron beam welding.'