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)

-----

"Surface finish improvement in barrel tumbling process"





April 19, 2010

Sirs,

We are manufacturing bearing components by barrel tumbling process.

Existing process:

Input Surface roughness Ra - 0.20 to 0.30 microns

2 Deburring cycles with High abrasive cylinder ceramic + HD balls & Deburring powder - 45 mins/cycle
3 Polishing cycles with Low abrasive cylinder ceramic + HD balls & polishing liquid - 45 mins / cycle

After the above process cycles we are able to achieve surface roughness Ra - 0.10 to 0.15 microns.

Currently we are achieving Input Surface roughness Ra - 0.07 to 0.10 microns. I have tried out the above tumbling process for the current improved input Ra.
But output Ra increased to 0.15 microns.

Kindly advise me what I can do to achieve the output surface finish Ra < 0.05 microns.

Thanks & regards

Arun Montee ja
Employee - Ahmedabad, India
^


April 22, 2010

A couple of basics. The size of the abrasive in the media will effect the final finish. The smaller the size grit, the finer the finish. When achieving very fine finishes, you do not want any abrasive at all. Use porcelain media if you are doing a wet process. For the smoothest surface finishes, I prefer to use dry organic abrasive media followed by a a treated polishing organic media.

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