Shop Floor Talk  

Go Back   Shop Floor Talk > Welding and Metalworking Forums > Machining

SFT Search:   
Reply
 
Thread Tools Display Modes
  #11  
Old 01-10-2019, 11:19 PM
MetalWolf's Avatar
MetalWolf MetalWolf is offline
Lubrication Consultant
 
Join Date: Jan 2011
Location: LaVernia,Tx.
Posts: 2,756
Default

Quote:
Originally Posted by LKeithR View Post
For that application any plastic will do. Delrin, UHMW, nylon; you name it; there isn't enough load that you'd be able to tell the difference...
Keith...
I'm just going by the two different color Delrin which one should I use as that is the only material I have available to use for this...
and if one is better than the other and need not be wasted I'd rather not waste any of one or the other but it is still all I have to work with...
__________________
MetalWolf, AKA---- Metallic Shapeshifter-----

I Have Only One Wish To Achieve "Pura Vida" In All That I Do!
Reply With Quote
  #12  
Old 01-11-2019, 02:31 AM
LKeithR's Avatar
LKeithR LKeithR is offline
Hey...wait...is there a prize?
 
Join Date: Aug 2011
Location: Langley, B.C.
Posts: 4,843
Default

Quote:
Originally Posted by MetalWolf View Post
Keith...
I'm just going by the two different color Delrin which one should I use as that is the only material I have available to use for this...
and if one is better than the other and need not be wasted I'd rather not waste any of one or the other but it is still all I have to work with...
Without some way of tracing the origin there's no way to know if there is a physical difference between them. When it comes to colours there is no standardization between manufacturers so colour is no indication of the specific grade of material. They could be identical materials or they could be completely different. There is always a possibility that they are not even Delrin because, even though it is a brand name, it has become very generic and can mean different things to different people. In your case use whichever you want because it won't make a difference.

One thought. If one of the pieces is natural colour it's more likely to be a lesser grade than one that's coloured but that's a guess only...
__________________
Keith

Measure twice and cut once...or...wait, was that the other way around?
Reply With Quote
  #13  
Old 01-11-2019, 03:33 AM
midmosandblasting's Avatar
midmosandblasting midmosandblasting is offline
Blast this!
 
Join Date: Oct 2005
Location: Calhoun ,Mo
Posts: 7,839
Default

Kieth have you tried freezing the umhm before machining . We used to freeze before machining or drilling .It helped but thawed fast .
Reply With Quote
  #14  
Old 01-11-2019, 04:20 AM
LKeithR's Avatar
LKeithR LKeithR is offline
Hey...wait...is there a prize?
 
Join Date: Aug 2011
Location: Langley, B.C.
Posts: 4,843
Default

Quote:
Originally Posted by midmosandblasting View Post
...Kieth have you tried freezing the umhm before machining...
I've never tried it but I've never felt the need to either. If you use really sharp tooling and take fairly heavy cuts UHMW doesn't machine that bad; you just have to deal with the really stringy swarf that the cut produces. I use the ultra-sharp uncoated inserts designed for aluminum--they cut really well and leave a good surface finish, especially if you take a heavy DOC and spin the RPM up good...
__________________
Keith

Measure twice and cut once...or...wait, was that the other way around?
Reply With Quote
  #15  
Old 01-11-2019, 06:39 PM
arizonian's Avatar
arizonian arizonian is online now
Elite Member
 
Join Date: Jul 2007
Location: Tucson, Arizona
Posts: 1,178
Default

My experience with Delrin...

Keep it out of a tankhouse environment. Sulfuric acid will eat that stuff alive. Guess you don't really have to worry about that, tho.

Delrin is great for stable low friction applications. It won't creep like PTFE will.

You Suck...
__________________
Bill in sunny Tucson

I believe in gun control.

Gun Control: The ability to consistently hit what you are aiming at.

Weldor by choice, engineer by necessity.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Web Search:

All times are GMT -5. The time now is 03:00 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2019, vBulletin Solutions Inc.