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

silentstorm
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Joined: Fri Mar 09, 2007 6:30 pm

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

Postby silentstorm » Fri Mar 09, 2007 6:32 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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sogood
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Postby sogood » Fri Mar 09, 2007 6:41 pm

Stamped (Alu?), cold formed (Alu?), molded (CF)
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silentstorm
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Joined: Fri Mar 09, 2007 6:30 pm

derailleurs

Postby silentstorm » Fri Mar 09, 2007 6:53 pm

i dont think it would be cold worked or stamped

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Bnej
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Postby Bnej » Fri Mar 09, 2007 6:56 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.

silentstorm
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Joined: Fri Mar 09, 2007 6:30 pm

derailleur

Postby silentstorm » Fri Mar 09, 2007 6:58 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

silentstorm
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derailleur

Postby silentstorm » Fri Mar 09, 2007 7:00 pm

i know that all the nuts and adjusting bolts are all cold work and drawn out

drawn2mel
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Postby drawn2mel » Fri Mar 09, 2007 7:07 pm

maybe ask an Industrial Designer about the manufacturing process.

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LuckyPierre
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Postby LuckyPierre » Fri Mar 09, 2007 10:25 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.

silentstorm
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Joined: Fri Mar 09, 2007 6:30 pm

derailleurs

Postby silentstorm » Sat Mar 10, 2007 4:39 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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europa
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Postby europa » Sat Mar 10, 2007 9:51 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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