Home /
T.O.C.
FAQs
 
Good
Books
Ref.
Libr.
Advertise
Here
Help
Wanted
Current
Q&A's
Search 🔍
the Site

Chime right in! (no registration req'd)

-----

"Obtaining a 8-12Rms Finish on Machined Die Cast A380"



2000

We are currently attempting to manufacture a 6.00" diameter groove which approximately .125" wide. After machining we obtaining a 20-30 Rms. finish on the groove walls .300" deep. I am seeking a coating or process to improve this to the required 12 or better. The walls of the groove act as the sealing surface for a teflon encapsulated o-ring (which has only passed test with 12Rms finish). Due to the volume constraint the cycle time would need to be close to 1 minute.

Due to the narrow groove width we have looked into grinding, film buffing, teflon impregnation. Any ideas or suggestions would be welcome. Thanks,

Ken Hagadorn
- Benton Harbor MI, USA
^


2000

Ken, Over all part size would be nice. I think the RMS you need to achieve can only be accomplished using mechanical methods. It may be possible to get the finish you are looking for using mass finishing equipment and dry organic media. However,it still may be tough.

tony kenton
AF Kenton
Hatboro,
Pennsylvania

^

none
finishing.com is made possible by ...
this text gets replaced with bannerText
spacer gets replaced with bannerImages

Q, A, or Comment on THIS thread SEARCH for Threads about ... My Topic Not Found: Start NEW Thread

Disclaimer: It's not possible to fully diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations might be harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact    -    Privacy Policy    -    ©1995-2021 finishing.com, Pine Beach, New Jersey, USA