What makes it aerospace/plane steel?bowie wrote:yes my aerospace/plane steeeeeel...
I cracked my frame!
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Re: I cracked my frame!
Postby rkelsen » Tue Aug 04, 2009 3:48 pm
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Re: I cracked my frame!
Postby toolonglegs » Tue Aug 04, 2009 3:54 pm
They just melt some of these ....rkelsen wrote:What makes it aerospace/plane steel?bowie wrote:yes my aerospace/plane steeeeeel...
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Re: I cracked my frame!
Postby bowie » Tue Aug 04, 2009 3:54 pm
MarketingWhat makes it aerospace/plane steel?
http://en.wikipedia.org/wiki/41xx_steel
And the fact that they simply used to tool for the aviation industry
http://www.sheldonbrown.com/lambert.html
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Re: I cracked my frame!
Postby Lark2004 » Tue Aug 04, 2009 4:07 pm
In the skin and frame, yes, but there is also a few parts made from Cr-Mo in there as well. These was actually a problem with an after market part for one type of plane, it had been made out of 4130 Cr-Mo instead of 531. (This was in an Air safty Magazine at my Dad's place a few months ago. He's an Avionics Engineer and always has aircraft magazines hanging around)JV911 wrote:pretty sure most planes are...wait for it...aluminium alloy!bowie wrote:my aerospace/plane steeeeeel
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Re: I cracked my frame!
Postby twizzle » Tue Aug 04, 2009 4:17 pm
Colin Chapman, Lotus.Nobody wrote:You're supposed to just state the obvious and then let them draw their own conclusion.bowie wrote:*gloats with his 40yr old aerospace forged steal bicycle"
Was it Porche that once was quoted as saying something like the ideal race car finishes the race first then immediately fall apart?
...real cyclists don't have squeaky chains...
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Re: I cracked my frame!
Postby Lark2004 » Tue Aug 04, 2009 4:30 pm
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Re: I cracked my frame!
Postby fitz » Tue Aug 04, 2009 4:31 pm
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Re: I cracked my frame!
Postby Nobody » Tue Aug 04, 2009 6:00 pm
That's why they...wait for it...crack!JV911 wrote:pretty sure most planes are...wait for it...aluminium alloy!bowie wrote:my aerospace/plane steeeeeel
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Re: I cracked my frame!
Postby Nobody » Tue Aug 04, 2009 6:01 pm
That anvil looks pretty strong TLL. You could probably hammer it all day and it wouldn't crack.toolonglegs wrote:They just melt some of these ....rkelsen wrote:What makes it aerospace/plane steel?bowie wrote:yes my aerospace/plane steeeeeel...
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Re: I cracked my frame!
Postby Nobody » Tue Aug 04, 2009 6:03 pm
No, the steel should hold it together.Lark2004 wrote:have to admit..... I have got carbon on my bike now........ Three tiny little spacers under the stem...... Will my bike Implode on itself and create a hole in the space time continuum?
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Re: I cracked my frame!
Postby im_no_pro » Tue Aug 04, 2009 6:05 pm
If anyone can break it.......Nobody wrote: That anvil looks pretty strong TLL. You could probably hammer it all day and it wouldn't crack.
master6 wrote: Moderators are like Club Handicappers; I often think they are wrong, but I dont want the job.
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Re: I cracked my frame!
Postby Chaderotti » Tue Aug 04, 2009 6:22 pm
-Pinarello rider (not me I swear!)
Mistress = Pinarello Opera, Ultegra SL
Mistress #2 = Drag Bluebird
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Re: I cracked my frame!
Postby snedden9485 » Tue Aug 04, 2009 6:29 pm
2011 Giant TCR Advanced SL
2011 Malvern Star Oppy TT9 Time Trial
2011 Giant Omnium Track
2012 Giant XTC Composite 29
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Re: I cracked my frame!
Postby AUbicycles » Tue Aug 04, 2009 6:37 pm
I am sure it will work out with the replacement.
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Re: I cracked my frame!
Postby snedden9485 » Tue Aug 04, 2009 6:52 pm
So, do turbo trainers damage alu frames or am i just unlucky? I wont be telling the LBS about the trainer though
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2012 Giant XTC Composite 29
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Re: I cracked my frame!
Postby Nobody » Tue Aug 04, 2009 7:00 pm
According to Mr Zinn, it doesn't and he is supposed to be an authority. However TLL's experience is different. Maybe Mr Zinn is referring to a 75Kg cyclists.snedden9485 wrote:It brings me to wonder how bad trainers are on frames??? My bike has done around 10 sessons in the KK trainer. I do some sprint work in the trainer, but i would have thought if it was related to this, it would have broke in the carbon stays?
So, do turbo trainers damage alu frames or am i just unlucky? I wont be telling the LBS about the trainer though
Third letter down.
http://www.velonews.com/article/90568
If you're worried about it, you could always setup a cheap steel bike for the trainer like some have. I haven't had any trouble with my frame on the KK yet.
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Re: I cracked my frame!
Postby grosry » Tue Aug 04, 2009 7:17 pm
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Re: I cracked my frame!
Postby sogood » Tue Aug 04, 2009 7:27 pm
Material defect, fatigue, abuse... And the list goes on.grosry wrote:what are the main reasons for frames cracking... just becuase they do or...?
RK wrote:And that is Wikipedia - I can write my own definition.
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Re: I cracked my frame!
Postby Supe » Tue Aug 04, 2009 7:51 pm
Inappropriate moment to gloat, mate. Will you still be gloating if Sneddon isn't covered and has to wear the cost of a replacement frame?bowie wrote:*gloats with his 40yr old aerospace forged steal bicycle"
*EDIT.. steeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeel*
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Re: I cracked my frame!
Postby trailgumby » Tue Aug 04, 2009 8:08 pm
At which point they ...wait for it... patch them with carbon fibre.Nobody wrote:That's why they...wait for it...crack!JV911 wrote:pretty sure most planes are...wait for it...aluminium alloy!bowie wrote:my aerospace/plane steeeeeel
That's what Hawker de Havilland do at Bankstown (or did, are they still there?). What do you think holds our F-111's together?
I got a couple of test pieces from a mate who worked at HdH a few years ago to use for fabricating model race car parts. Do you think I could get a drill to put a hole in it? Nup, not even a brand new titanium-nitrided bit would touch it. Danged thing would wander all over the place, even with a drill press. The only way to get a start was to mark the spot with the tip of a pointy stone in a Dremel. That was some real tough stuff. I think the resin was boron-impregnated. Yes, I wore breating apparatus when cutting it - again, with a dremel cutoff wheel. Sawblades wouldn't touch it either.
What were we talking about? Oh yes, snedden's downtube failure.
We now resume normal transmission...
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Re: I cracked my frame!
Postby provoked » Tue Aug 04, 2009 8:21 pm
Anyhow, wish ya luck snedden!
The mind is its own place, and in itself, can make heaven of Hell, and a hell of Heaven. - John Milton
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Re: I cracked my frame!
Postby twizzle » Tue Aug 04, 2009 8:23 pm
I think it was Carroll Smith (famed motorsport engineer) who said : "The price of man in motion is the occasional collision". Holds true for bicycles as well as race cars.
...real cyclists don't have squeaky chains...
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Re: I cracked my frame!
Postby Lark2004 » Tue Aug 04, 2009 9:11 pm
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Re: I cracked my frame!
Postby grosry » Tue Aug 04, 2009 10:07 pm
dont most frames have a weight limit on the riders? cause that would help snap a frame!sogood wrote:Material defect, fatigue, abuse... And the list goes on.grosry wrote:what are the main reasons for frames cracking... just becuase they do or...?
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