I'm thinking of doing some chainstays with chopped and welded bends. What do you folks think?
I think it's a great idea - though my builders (mass production factories) never wanted to do it.pvd said:I'm thinking of doing some chainstays with chopped and welded bends. What do you folks think?
I have[email protected] said:...Ever tried anything with bits of plate in the chainstay area? - I've been working on that this afternoon after I heard Lynskey had a new water-jet cutter guy, and I wanted some more tyre clearance on our Ti frames...
that's the left chainstay, 3/4"-0.035.rocwandrer said:edit: with welding, depending on the filler strength, no post weld grinding and no patch gusset might be ok. with brazing, the bronze isn't strong enough to prevent the joint from tearing out without a lot of build, so the gusset looks better and gives better clearance. That same issue is my only worry with Peter's joint pictured above. If that tube is a seatstay, it might be fine....
the issue is if it subjected to bending stresses, and how those might be distributed by your plug, as it sounds like you already know... road or mtb use?Peter E said:that's the left chainstay, 3/4"-0.035.
The brazed area is 5 times greater than the cross section area of the 3/4tube. I'm a little concerned too. I'll let you know if it breaks...
wonder how it would be in fatigue loading though? Driveside stays get screwed by fatigue in my experience - we stopped using chainstay bridges and switched to gussets on the outside as a common failure mode of our earlier frames was a fatigue propagating around the stay from the chainstay bridge weld.pvd said:Test peice. Same as the final version, but beat up, smashed and bent.