it’s “weak“.
Week welds, are welds that took freakin forever to produce.
* Let’s use it in a sentence shall we?
The bead was so long, It took 7 days to weld the seam together...In essence, it became a week of welding...or.....a week weld.
Dang, I get a response for a one letter typo, and some people can cruise around here in ALL CAPS and no punctuation. That's harsh.
Kurt