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22-11.-2001, 10:59 AM
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#1 |
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Guest
Posts: n/a
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adhesives
Just a question....does anyone know if adhesively bonded frames are still made?
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24-11.-2001, 01:08 PM
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#2 |
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ArchAngel
Join Date: Aug 2001
Location: Orion Nebula
Posts: 2,163
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Re: adhesives
Giant and Univega used to make them, as far as I can recall. Not sure if the technology is still around. All carbon-fibre nowadays.
__________________
Pain is inevitable...suffering is optional |
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03-12.-2001, 12:47 AM
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#3 |
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Guest
Posts: n/a
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Re: adhesives
Chris:
One of the U.K. recumbent trike manufacturers was using this method. The name escapes me for now - he designed Chris Boardman's bike. You might be able to search the archives at framebuilders@phred.org the topic has been mentioned there, but rarely. Cheers. |
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04-12.-2001, 12:33 PM
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#4 |
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Guest
Posts: n/a
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Re: adhesives
Mike Burrows, of Windcheetah fame.
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05-12.-2001, 09:31 PM
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#5 |
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Guest
Posts: n/a
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YES
Many of the LOOK's top models (KG261,KG281) use aluminum lugs, with bonded carbon fiber tubes.
My ride, the Colnago C-40 also has carbon fiber tubes, bonded to carbon fiber lugs. *The C-40 is not a one-piece frame like most Kestrals for example. |
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18-01.-2002, 07:35 PM
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#6 |
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Guest
Posts: n/a
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Re: adhesives
Hi,
I work in composites building America's Cup yachts. We use many different types of epoxy resin. You would be surprised at the array of strengths available from different types of glue. One rule of thumb is that the faster the air drying cure rate, the weaker the final strength of your bonding. I just got myself a C40 after much deliberation as to which process of construction was best, i.e. Female moulded in 1 piece or tubes bonded into lugs. I went to the Colnago in the end, as that's the frame I reallly wanted. I checked out a Trek 5900 before I made my decision. I'd heard that this was a moulded frame, but looking closely you can see that this frame uses tubes bonded in a male/female type joint. Ultimately I think it is tooling costs that govern how the frame gets built for composite frames. The tooling must suit many sizes of frame (lugs) or limit the mould to 1 size of frame. See you later ! |
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