DERAILLEURS!!!!!! I NEED HELP PLZ!!!!

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DERAILLEURS!!!!!! I NEED HELP PLZ!!!!

Postby silentstorm » Fri Mar 09, 2007 5:32 pm

OK!! i got an assignment about derailleurs and i just hit a brick wall, one of the questions ask 'what is the process of manufacturing derailleurs'

May anyone help me!

I think they die cast them but not sure

thanks
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by BNA » Fri Mar 09, 2007 5:41 pm

BNA
 

Postby sogood » Fri Mar 09, 2007 5:41 pm

Stamped (Alu?), cold formed (Alu?), molded (CF)
Bianchi, Ridley, Montague, GT, Garmin and All things Apple :)
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derailleurs

Postby silentstorm » Fri Mar 09, 2007 5:53 pm

i dont think it would be cold worked or stamped
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Postby Bnej » Fri Mar 09, 2007 5:56 pm

Would depend on the specific model and part you are talking about. Most have parts of different material in them, so no single manufacture process will cover the whole thing, I think.

Don't really know much about it, you'd have to talk to a bicycle component manufacturer.
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derailleur

Postby silentstorm » Fri Mar 09, 2007 5:58 pm

where can i find I? i rang up like Campagnolo and Shimano companies and like 3 bike shops and they dont noe or told me that is private information!! lol sigh
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derailleur

Postby silentstorm » Fri Mar 09, 2007 6:00 pm

i know that all the nuts and adjusting bolts are all cold work and drawn out
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Postby drawn2mel » Fri Mar 09, 2007 6:07 pm

maybe ask an Industrial Designer about the manufacturing process.
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Postby LuckyPierre » Fri Mar 09, 2007 9:25 pm

Perhaps you could put this exploded view of a derailleur in your assignment and then nominate the manufacturing process for each component. It seems possible to me that you could make a reasonable guess at the process for nearly all of the parts.
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derailleurs

Postby silentstorm » Sat Mar 10, 2007 3:39 pm

thanks to all people that help me :) especially LuckyPierre (thanks)

heres what i found

derailleur outter case: die casted

springs and screws: cold drawn

Inner plates of derailleur: drop forged

thanks too all
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Postby europa » Sat Mar 10, 2007 8:51 pm

Hmm, that's more than the rest of us know. Like to share a bit more about you? Like a rant about the perverted sod who set you this assignment in the first place?

Richard
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