Brazing w/ out lugs?
03-12-14, 11:25 AM
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Brazing w/ out lugs?
I need some tips about brazing with out lugs. Should I tack weld first?
I watched a welder do a bike, and he had a good step procedure to keep it from warping. see the red numbers:
And what is the name of the brazing material that is almost as strong as steel?
https://nhojyesdnil.files.wordpress.c...e-plan-999.jpg too bad I can not up load this picture!
I watched a welder do a bike, and he had a good step procedure to keep it from warping. see the red numbers:
And what is the name of the brazing material that is almost as strong as steel?
https://nhojyesdnil.files.wordpress.c...e-plan-999.jpg too bad I can not up load this picture!
Last edited by jawnn; 03-12-14 at 11:29 AM.
03-12-14, 12:30 PM
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Fillet brazing is traditional, laying down a big smooth fillet that wont need a lot of clean up to look best
is a skill.
the fillet is where the strength is .. the brass filler in not unusual sourced.
is a skill.
the fillet is where the strength is .. the brass filler in not unusual sourced.
03-12-14, 02:10 PM
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If you have fixturing to hold the tubes in place, tack welding is unnecessary. Standard, low-fuming bronze is just fine for fillet brazing.
03-14-14, 06:51 PM
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I built one filet brazed frame in 1988 and never built another. Too much aggravation for a hobbyist. That said I still ride that bike most everyday and it is my favorite hardtail MTB.
I didn't have a jig that would allow me to braze all around the tube, So I tacked it with some nickel-silver rod that melts at a higher temp than brass rod. Worked very well.
I didn't have a jig that would allow me to braze all around the tube, So I tacked it with some nickel-silver rod that melts at a higher temp than brass rod. Worked very well.
