A286 stainless

[fadalman]

Any one made parts with A286 stainless?

[djr76]

No, but from the looks of it, its some tough stuff for some tough applications. I cut a ton of 300 and 400 series stainless, its all relatively close in feeds and speeds.

[little bubba]

Yes, it sucks, take your quote and triple it.

What are you doing? milling or turning? It sucks both ways.

My experiences. First with milling, a 175 piece job, a thin walled(.070) spring clip. Annealed back to a 13C. Carbide roughers, 100sfm, .002 per tooth, wet, decent tool life. Increased to 130SFM same feed per tooth same paths and increased tool life time by almost 50%. 135SFM, and tool life went to seconds instead of hours. AlTiN coated tools lasted 30% less in terms of tool life. If I knew then what I know now, I would have tried it dry.

Went to ceramics, roughing time went from 24 minutes to 24 seconds. 6300SFM, 2" face mill, KY2100s, 4 fluter. A nasty gigantic flaming mess at 11700rpms on a Mazak FJV20, 250ipm in a 2"X2" platform. Don't try it on a Fadal, it won't work, I tried it, box ways and all, just wouldn't do it, the whole column pushed back, ugly ugly ugly.

Turning, it still sucks, not much experience on that side, but the one shot I did have, I gave up. 6-32 UNJF thread, 1 part per insert edge, $2.00 per complete part, 2 edges per insert, $18 an insert(I didn't bid it, but what did I know? I was just the guy who made the parts and bought the tools, I guess if I was the guy humming the owner then I would have known better).