Originally Posted by
Bandrada
Oh, and that BMX frame looks tits. Has it been built up yet? What are the numbers?
Thank you for the compliments. I have been welding for a really long time and enjoy my work.
The customer just got it together. Ill ask if I can share the geometry.
Depending where the crack is, heat treating may not be required or even desirable. When aluminum get's to the 950, the frame is so soft that they can be easily damaged. It's very difficult to keep them from moving enough to cause problems. I have seen tubes sag as much as 2" in the center so you need to have a lot of stuff around to get it straight.
I have a complete alignment and tube straightening set-up near the quench tanks. I get about 30 mins make them (six at a time) straight before they start to get stiff.