Framebuilders - AL with no Aging process?

Bikeforums.net is a forum about nothing but bikes. Our community can help you find information about hard-to-find and localized information like bicycle tours, specialties like where in your area to have your recumbent bike serviced, or what are the best bicycle tires and seats for the activities you use your bike for.

PDA

View Full Version : AL with no Aging process?

ultraman6970

10-29-06, 10:14 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, 11:40 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.

Falanx

10-30-06, 03:50 PM

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, 06:52 PM

heheh thanks :)

Thylacine

11-05-06, 03:30 AM

Aren't 7005 frames from the Orient typically not artificially aged?