Fillet Brazing- how big should fillets be?
#1
Senior Member
Thread Starter
Join Date: Oct 2009
Location: England, currently dividing my time between university in Guildford and home just outside Reading
Posts: 1,921
Bikes: Too many to list here!
Mentioned: 1 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 4 Times
in
2 Posts
Fillet Brazing- how big should fillets be?
Roughly how big do the brass fillets need to be on a typical fillet-brazed bike? I'm probably going to use brass, does that make a difference?
Apologies if these are dumb questions
Thanks
Apologies if these are dumb questions
Thanks
#2
Decrepit Member
Use brass or bronze brazing rod as in this Dave Kirk frame:
Generally speaking, the radius of the fillet should be about four times the tubing wall thickness. Sorry, but I don't know the source of this drawing:
Generally speaking, the radius of the fillet should be about four times the tubing wall thickness. Sorry, but I don't know the source of this drawing:
Last edited by Scooper; 01-20-10 at 04:06 PM.
#3
Banned
Join Date: Aug 2005
Posts: 5,115
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 2 Times
in
1 Post
Keep in mind that the fillet depth is much affected by the angle of the joint, both in terms of tubing geometry angles, and the side of the tube in question, the flats allowing little depth. So your eye can be your guide as much as anything else. Nothing that is forbidding you from doing some destructo tests, not that those loads are the main failure mode, but at least you know you have some basic result.
Thread
Thread Starter
Forum
Replies
Last Post
scarlson
Classic & Vintage
34
01-08-20 10:08 PM