feed and speed help, please

[AllenT]

Hello all

I 'll be cutting heat treated D2 material tomorrow, hardness is 60-62 RC, what is the speed and feed for that? Using .75 dia Stellram TiAlN PVD coating EM, I am cutting on the side with .015 to be removed, 1.5" deep, I have never cut materials this hard. thanks in advanced for your helps.

Allen

[DavidB]

80 Metersmin speed and .1 feed per tooth, that's using an 8 fluted cutter. 1300 RPM 1000mmmin.

A 4 fluted tool at 60 metersmin 1000 RPM and 400mmmin.

Cut it dry with air blast and if you can vegtable oil mist.

 

HTH

[AllenT]

thanks, I'll try it now

Allen

[Hardmill]

Id prolly start @ 650 sfm minimum. (800 more likely) .002 chip load.

Full depth 1 semi-fin 1 fin pass.

 

Never used the Stellram mills (have heard good things though)

Gotta keep the surface feet up being that Tialn likes to cut hot.

 

 

PEACE