Stripped the paint and rusty stuff off my passenger door and found this. I've heard of lead wiping/loading and Bog but I've never seen Bronze used to do car rust repairs. Is it a forgotten art, a frowned upon exercise or just a case of "Hey, lets see if this shit works!!!"
Has anyone heard of this being done? Its done the job of filling the holes but still needs heaps of filler

Bronze welding, or brazing, is used to join steel sections - usually with a 'lap' joint. If there is only a few pin holes, and you only have an oxy set [no MIG] it would be OK.

The turret [roof] of a Beetle was bronze welded to the front quarter panels, along with a couple of other spots. There is less heat required, so less distortion

it is easier to grind so some people ,the factory included used it
as a time saver. the 2 metals react causing corrosion . maybe not so ideal .

Yep, seen it heaps but definately corrosion inducing.

Probably best to cut it out then, don't really want to try and get another door here. Freight just from Darwin is near on 500

Quote:

Originally posted by DubbyDo Probably best to cut it out then, don't really want to try and get another door here. Freight just from Darwin is near on 500

Brazing is not good for panel repairs. The heat and flux used both promotes and accelerates rust.

For joins on cars nowadays on the production line they use MIG Bronze.

Wyy would a MIG bronze and a properly cleaned up Oxy bronze be any different?

The flux is the issue, if it is removed there is no problem, same as oxy welding, if you do not remove the scale caused by the welding it will rust again.

Exactly!
That's how I repaired the pinholes around the front and rear windows of my HQ many moons ago.
Was all good 10 years later when I sold it.