Cutting HDPE with a 1/2" ball nose bit

[Greybarn]

I want to cut a female tool in some HDPE for some small fiberglass parts. can I use a 1/2" ball nose? Normally I cut HDPE with a 1/4" spiral O flute but I want the inside edges to be radiused. Will it cut, without melting, iIf I use a 1/2" ball nose at 8,000 RPM and 3 IPS? Seems like it should work okay.....
Any thoughts or ideas would be appreciated.
Regards
Peter G. Smith

[knight_toolworks]

yes it cuts fine. you may have some fuzzies to clean up.

[Greybarn]

Excellent. We will give it a try.
Regards
Peter

[gundog]

I routinely cut .5" HDPE with a .5" 2 flute ball mill I am only cutting a groove .1" deep I run the bit 12000 RPM @ 2" second I get a very good finish I ramp it in for 2".

Mike

[Greybarn]

Thanks for the reply. I am going to cut the part today or tomorrow. I will post pictures of how it turns out.
Regards
Peter