H-M Supporter - Sustaining Member
H-M Platinum Supporter
- Dec 26, 2015
Yes, the Haas face mills come with insert screws. I would not recommend using the inserts designated for aluminum on 304. 304 is a difficult material to begin with because it's so sticky and will work harden if you don't take aggressive enough cuts.I'm considering the 2.5" HS6NP as well on a Bridgeport. What insert type are you using most? I'd like to avoid stocking many types. I'll mostly be using this for squaring stock and finish passes. I usually work with mild steels like 1018 or 304 stainless and aluminum. I was considering the polished HN25 even though it's speced for aluminum. I figured the low hours I put on the tool would likely have them hold up well.
Does the tool come with insert screws? I see HAAS sells them.
Here is a video of the 2" face mill with rectangular inserts cutting 304 stainless using the HMP20 inserts designated for stainless. RPM is 625, DOC is .187", WOC is 3/8". Feed rates increase during the cut from 3 to 6 to 9, then 12 inches/minute. Best results were at 12 IPM, but at this DOC and WOC, it was pushing the rigidity limits of my PM-935.