Hand finishing an aluminum weld looks as good as a Fillet brazed joint,
that is also hand finished.

A batch produced lugged frame is quick to build,
if the investment in the tooling to do the job has been made.

watched Gazelle braze together a lugged 531 race frame main triangle
in a matter of minutes,
with a torch array fixture, and a rough alignment jig that insured
all the tubes were in plane , while it was hot.

It was a visit to the old Brick factory building in Dieren NL., years ago.



I understand the legions of TIG welders employed in bike factorys on Taiwan
are very proud of their welding workmanship .

welders are proud of their bead quality.