MadModder

The Shop => Composites & Plastics => Topic started by: bry1975 on July 16, 2011, 02:23:51 PM

Title: Diamond knurling Nylon 66 /PA 66?
Post by: bry1975 on July 16, 2011, 02:23:51 PM

Chaps,


So have any of you diamond knurled PA66? 

Or as a college friend use to say KKK nurl. :lol:


TIA


Bry

Title: Re: Diamond knurling Nylon 66 /PA 66?
Post by: Jasonb on July 16, 2011, 03:14:40 PM

Would have thought you will need to use a cut type knurling tool for that.

J

Title: Re: Diamond knurling Nylon 66 /PA 66?
Post by: Stilldrillin on July 16, 2011, 03:48:52 PM

I tried, on some delrin.

Produced a light pattern, only. But sufficient for my purpose at the time.  :thumbup:

David D

Title: Re: Diamond knurling Nylon 66 /PA 66?
Post by: John Stevenson on July 16, 2011, 04:51:29 PM

I personally haven't done any but the aerospace company up the road pop in and borrow my cut knurler every so often to run some nylon parts.
They reckon it works OK.

John S.

Title: Re: Diamond knurling Nylon 66 /PA 66?
Post by: bry1975 on July 16, 2011, 05:03:51 PM

Thanks chaps,

I wonder can plastic be given a pebble finish by blasting or tumbling?  Gonna have to look into that.

Title: Re: Diamond knurling Nylon 66 /PA 66?
Post by: Jonny on July 16, 2011, 05:17:06 PM

Bead blasting most plastics will only come out matt.
To get any indentation courser media will have to be used.

Cut type knurlers work best on plastics, well on nylon 66 and delrin, but may have to settle for flat peaks.

Title: Re: Diamond knurling Nylon 66 /PA 66?
Post by: bry1975 on July 16, 2011, 05:24:25 PM

Thanks Jonny,

I wonder if I can run a tumbler of the centre lathe so a cylinder running eccentric?