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

[silentstorm]

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

[sogood]

Stamped (Alu?), cold formed (Alu?), molded (CF)

[silentstorm]

i dont think it would be cold worked or stamped

[Bnej]

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]

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]

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

[drawn2mel]

maybe ask an Industrial Designer about the manufacturing process.

[LuckyPierre]

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]

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

[europa]

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