Bionic Balls

Good luck grinding a socket... I don't think it's gonna like it! Adam

Daaamn I need to ride more! Pleasure to watch TILBURY POWER STATION FAME AT LAST! Adam

Hello again.. You've not quite followed what I meant there- you'd need to heat treat the frame as one (as you said you don't have enough control to do it locally), but the metal will have been affected differently at varying distances from the weld. I'm not saying it's easy to repair but it can be done and I believe it this was a very expensive frame! If heat treatment turns out to be too difficult then there are still other options to be considered.. Too many frames get shelved way too soon! Adam

I do You'd need a separate ageing treatment.. And no, it wouldn't be a local treatment- the whole frame would likely need heating. Different areas will be heated at different rates and to different peak temperatures. Some areas could harden due to particulate coarsening. Normalising would only return the parent material to it's original properties if it was normalised to start with. No engineering aluminium alloy I can think of would be supplied like this. No offence to you- you sound like you know a fair bit, but I do actually do this for a job.. Adam

Hi there- not posted on here for ages but people have some funny ideas about welding! Yes there is. Lots. http://en.wikipedia.org/wiki/Fracture_mechanics http://en.wikipedia.org/wiki/Materials_science Yes you can. In an ideal world where there were no other complications we'd probably heat treat every weld if we could! Heat treatment gives restores the properties of the parent material before we welded it. bingo. yes it does. Welding makes it very hot.. some terrible spelling but near enough.. An aluminium frame will theoretically never last forever though (search for "fatigue limit" if you want to know why). the heat affected zone will soften yes, but i'd be surprised if it's a non-heat treatable alloy. Chances are it's either 6 (Al-Mg-Si) or 7xxx (Al-Zn) series aluminium which can be heat treated quite easily if you have a big enough oven. If you want to know how, search for "precipitation hardening". Other big issues with welding aluminium are using the wrong filler (for 6xxx alloys use 4043A or 5356 and for 7xxx alloys use 5556A) and not cleaning the joint enough before welding (difficult on frames as you won't really be able to clean the inside of the tube easily- you should if you can though). Any more welding issues while I'm here?! Adam

agreed.... Damn I need to ride some!

that really was awesome

yeeeees people... gotta come up to London. Love it.

top stuff wheelstar! Shins looking ragged...proper. NEW FRAME?!?! Need to get over for a pedal... Adam

Anyone fancy an evening ride this week..? I've not ridden Cambridge before.. Cheers, Adam

!

heading over to the west.. ladbroke grove(ish).. chai!!! Let me know if you're coming and i'll let you know where we are.. MMMMMINT!

should be out- Joel, Andy, Tommy...? Swwwwwwwish. Adam

smmmmooove.

smmoooooth... more to come yes?!

It's campaign Steve... Good to see you're still on it pal- hope to catch you up sometime soon! Adam

aawesome! Loved that..brings back memories! HOOTSMAN!!

yep..

Sweet.. Im on 07752 234458

woah....

Getting to ben's for 11 ish.. Then ridey time! No idea where I'll actually be riding.. Hopefully Ben does... Hope to see some people out! Swish.

i think i need to ride. Ben? Anyone else about? Adam

f**k me.. i never saw that roadtrip video before. I can't sleep now!

damn you're really leaving me behind now..! I need to get some riding in with you pronto.. 180 up?!!

Nice.. like that