Originally Posted by
scbvideoboy
Didn't know 7000 series alum isn't weldable for stuctural parts.
Actually, some are - 7005 TIG welds quite easily and isn't as susceptible to post weld tensile loss as 6061, thus permitting the fabricator to forgo post heat treating. For that reason, many of the aluminum frames manufactured across the pond use 7005. However, sourcing 7005 stateside is a problem.