Face Mill For Finishing 304 SS

[GoetzInd]

Hi Guys,

Does anyone know of a face mill that they have had experience achieving fine surface finishes with? By fine I mean 16ra or less. Looking for something perhaps with adjustable cassetes. TIA.

 

Mike

[Matthew Hajicek - Singularity]

We use Ingersoll hi-posquad with wipers on H-13 @ 47RC with good results.

 

http://ecat.ingersol...s.aspx?ID=16991

 

They claim finishes to 15RMS.

[RaiderX]

300 series stainless is not real hard to get very good finishes. I have had good luck with brand name 45 lead pos rake face mills.

[robk]

Mike,

Currently cutting Jethete M152 which is not as bad as 304(18-8) but pretty close. Using Kennametal Ø5.00 Shell Mill (KSSISR492SE44345M6) with SEPT1404AEENLD2 Grade KC725M insert running 260sfm @ .004fpt with excellent results. We are being pretty conservative. We're not shooting for 16rms, but I believe we are very close to getting it. Not sure if it helps, but it may be worth a try.

[GoetzInd]

Thanks for the help guys. I think I'll give a widia M6800 a try and keep the feed .003/.004. Rob, just dug out a smaller version of the KSSISR and will give that a try if needed. (We don't currently stock inserts for it).

 

Mike

[Rotary Ninja]

We use Ingersoll hi-posquad with wipers on H-13 @ 47RC with good results.

 

http://ecat.ingersol...s.aspx?ID=16991

 

They claim finishes to 15RMS.

 

We use these exact same face mills. They are the best I have ever used. I run a 2" one at 2500 RPM and 25 IPM on the finish pass taking a .005" to .010" cut and the finish is a mirror. It is best to have a rougher and a finisher.

[Matthew Hajicek - Singularity]

Ninja, do you run that wet or dry?

[Rotary Ninja]

Coolant on. I would run dry, but the hot chips melt the chit out of the way cover seals.

[left coast lefty]

Ninja, do you run that wet or dry?

 

Ninja, what RPM do you rough with? We have found that anything over 5-600 SFM with coolant gets heat fracture. Then again, we haven't used this cutter.

[Rotary Ninja]

1640 RPM seems to be the optimal setting

[left coast lefty]

1640 RPM seems to be the optimal setting

 

Thanks Ninja!

[Rotary Ninja]

That is in our little VF2. In the Mazak it will run a little faster. I would actually love to see what these cutters would do in something like an old Okuma or Cincinnati.