200 series nickel thin wall lathe?

[mold100]

I recieved an rfq from a potential new avenue and no one wants to touch these parts. 200 nickle (no experience) and round aprox 3/4 long .520 dia with a thru hole of .49 +/- .002. i was looking to have them extruded 1 in 12 suppliers quoted it. Can this be turned? i do not have a cnc lathe but..........would be motivated into one possibly if this could be done.

 

I am wondering if it would be possible to finish the id, part them finish length then use some sort of expansion arbor to turn the OD.

 

Thanks in advance.

 

[ 05-27-2009, 06:24 PM: Message edited by: mold100 ]

[mold100]

Bump........?

[chris m]

Sorry, Corey, no experience with that mat'l at all; dimensionally it would be no problem to turn but I have no idea about the machinability of the stock

[mold100]

Chris,

 

Web site i seen says its gummy, but I am curious as to if that would be way to machine them from any material. I have very little lathe experience. Thanks.

[88Matt]

200 nickel moves around a lot. I had some plates about 5in square .050 and .036 thick. Tried some different milling techniques and they all curled. Even tried grinding it. I finally got it by roll milling it to thickness and then wiring it out. It had a mirror finish and was easy to drill and tap then.

 

The customer was using it because of the magnetic properties so the work hardening from the roll mill was fine and made it easier to deal with.

 

You probably try a combo of lathe and wire in your case.

 

HTH

 

Matt

[mold100]

88 and chris thank you.

 

Anyone with any more material experience let me know.

[chris m]

If you were making that part from some 'normal' material then I would say: face, drill, bore, cutoff and then transfer to some kind of full-contact ID gripping fixture [Dunham arbor, hydraulic mandrel, etc] and: face, turn the OD, chamfer the bore.

 

We turn stuff thinner than that all day long, so it it certainly acheivable, but don't cheap out on the workholding

[88Matt]

Mold,

 

What kind of quantity are you looking at?

[mold100]

Matt,

 

2500 to start, I have 4 other simalar items ranging in various sizes. all quantiy minimaums are 500. I am not opposed to outsourcing.