Current Projects chat and miscellany

welll...

"From the website: The alloy 7000, used by Columbus for the tube sets Metal Altec2 Plus, Zonal and Airplane, is defined as self-tempering: it is air-hardened. This means that in the areas overheated by the welding the supersaturated structure is restored, which, owing to the natural ageing (which takes place at ambient temperature), allows for a 75% recovery of the initial properties after a lapse of time of about 3 weeks. Nevertheless, Columbus advises to carry out a precipitation hardening treatment in the oven in order to give the structure a bigger homogeneity of the precipitates, with consequent improvement of the fatigue behaviour of the frame."

(This is a quote of a quote)

its altec2. so im guessing solution heat treating isn't needed, but sticking it in the oven for a bit is recommended. however i definitely dont know what im talking about.

edit: I don't think anyone here will really know what they're talking about with this and I'll wait for the guy who works with aluminium to tell me what he thinks. i find it strange how noone seems to have any experience of getting an aluminium frame repaired though.

ive repaired loads like this you can either gas weld it or tig it,the crack isnt in the middle of a tube its on the end where you can filler rod it into the drop out.