Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  

Go Back   > >

Framebuilders Thinking about a custom frame? Lugged vs Fillet Brazed. Different Frame materials? Newvex or Pacenti Lugs? why get a custom Road, Mountain, or Track Frame? Got a question about framebuilding? Lets discuss framebuilding at it's finest.

User Tag List

Thread Tools Search this Thread
Old 03-12-14, 11:25 AM   #1
Senior Member
Thread Starter
jawnn's Avatar
Join Date: Aug 2004
Posts: 420
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
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?

http://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.
jawnn is offline   Reply With Quote
Old 03-12-14, 12:30 PM   #2
fietsbob's Avatar
Join Date: Jun 2010
Location: NW,Oregon Coast
Bikes: 8
Posts: 28,469
Mentioned: 63 Post(s)
Tagged: 0 Thread(s)
Quoted: 2994 Post(s)
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.
fietsbob is offline   Reply With Quote
Old 03-12-14, 02:10 PM   #3
Old fart
JohnDThompson's Avatar
Join Date: Nov 2004
Location: Appleton WI
Bikes: Several, mostly not name brands.
Posts: 18,213
Mentioned: 43 Post(s)
Tagged: 0 Thread(s)
Quoted: 755 Post(s)
If you have fixturing to hold the tubes in place, tack welding is unnecessary. Standard, low-fuming bronze is just fine for fillet brazing.
JohnDThompson is offline   Reply With Quote
Old 03-14-14, 06:51 PM   #4
Older I get, Better I was
velonomad's Avatar
Join Date: Nov 2003
Location: Greenfield Lake, Wilmington NC
Bikes: '14 BD Lurch Fatbike, '10 homemade road,'03 homemade tourer, '94 Yokota Tandem, '88 homemade MTB
Posts: 1,760
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 34 Post(s)
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.
velonomad is offline   Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

All times are GMT -6. The time now is 03:52 AM.

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    get answers from real people!
Click to start entering your question.