Hi Oxweld,
Thinking of doing a workshop within next months? Jan-Feb?
.... Barring chain requirements ...
The earlier Yakovlev piston-engined airplanes had ti exhausts. Gas welded.
I spoke with a number of engineers familiar with the factory. They agreed that the flux was impossible to acquire - made for the companies making the parts.
I tried for 10 years. Gave up.
It's not that my production required it. I can use TIG like all the Western World.
Glad to see you on the forum here.
Years ago, I gas welded some steel lamp buckets together, after having the sections spun. 1914 Stearns "Tonneau" model (sleeve valve engine - was quite a success on the AACA Grand National show tour.)
Lamp bucket on left is welded, cleaned and ready for final surface finishing - welds disappear completely, both inside and out.
gas weld_steel lamp buckets.jpg