View Single Post
Old 01-27-14, 03:31 AM
Senior Member
cpg's Avatar
Join Date: Apr 2012
Location: Nottingham
Posts: 437

Bikes: Mezzo I4, Trek 1200, Rudge (Montague) BiFrame, Bickerton

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
When building a bike frame from scratch the the tubes, the machined or forged parts are all at a different temper and the welding creates another different temper. After the frame is welded it is annealed to attain the same temper throughout. Best practice would be do a post welding heat treatment process to restore the desired mechanical properties of the material back to how they were before the welding so you don't get a difference between the area of the weld and the rest of the tube. There is no reason why a after a repair has been made it couldn't be given a similar heat treatment.
cpg is offline