No passwords, No popups, No cost, No AI
we earn from your eBay & Amazon purchases

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
curated with aloha by
ted_yosem
Ted Mooney, P.E. RET
- Pine Beach, NJ
finishing.com -- The Home Page of the Finishing Industry


  pub
  The authoritative public forum
  for Metal Finishing since 1989

-----

Deburring internal passages in a Delrin manifold




I'm looking for a process, equipment or local job shop capable of deburring multiple internal passages in a chemical distribution manifold made of Delrin 150. The manifolds are approximately 6"x3"x3" with multiple intersecting passages from 1/8" to 3/4" in diameter. Any burrs in excess of 10 microns are a potential problem.

Troy Koll
- San Antonio, Texas
1999


Troy,

Wow, you have a real problem and in spite of my nigh on 40 years in the (thermo) plastics fabrication business, I'm not too sure I can help.

The only possible way to, perhaps, deburr (as you call it) this acetal material is perhaps, PERHAPS, by using heat, ie. sufficient surface heat to soften/smooth out the surfaces. But if you do that you may heat distort your manifold. And as 10 microns is the size of the 'mist' in a rain cloud, this means it is pretty damn small. so small that your eye cannot discern it!

Why Delrin? Why such superfine tolerances or finishing? What is this manifold for? Maybe if I knew WHAT you were trying to do, I might, perhaps, come up with some ideas.

Cheers!

freeman newton portrait
Freeman Newton [deceased]
(It is our sad duty to advise that Freeman passed away
April 21, 2012. R.I.P. old friend).

1999



2000

There is a process whereby an abrasive slurry is pumped thru the manifold galleries to remove microburrs,this can be unidirectional or reciprocating flow. There is a company near Boston Mass. that specialises in this work on a contract basis,unfortunately I have lost contact with them,

Regards

John Richardson


Is there any alternative method for shot blasting of gear after heat treatment?

Debashis Bhuniya
motor co. - India
2003




(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a 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:

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


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"