View Full Version : AL with no Aging process?
ultraman6970
10-29-06, 09:14 PM
Hi
Just wondering if there is some Aluminum tubing able to being weld w/o having to do an post heating process or aging process?
Nessism
10-29-06, 10:40 PM
Columbus used to sell a tubeset made from Al-Mg 5000 Alloy which did not need heat treatment. Seems to be discontinued these days though.
Strength in solid-solution strengthened aluminium alloys is a best mediocre and at worst dire. The welding process irreversibly destroys the only possible route to strengthening in the material - the dislocation pileup of cold work. There's no acceptable metallurgical reason for using such alloys in bike frames.
ultraman6970
10-30-06, 05:52 PM
heheh thanks :)
Thylacine
11-05-06, 02:30 AM
Aren't 7005 frames from the Orient typically not artificially aged?
vBulletin® v3.7.3, Copyright ©2000-2008, Jelsoft Enterprises Ltd.