Machining Speeds Feeds: turning_roughing
Machining speeds and feeds reference data — cutting speed (SFM), feed rate (IPR/IPT), depth of cut, tool life, surface finish, and specific cutting energy for 9 operations (turning roughing/finishing, milling face/end/slot, drilling, reaming, tapping, boring) across 14 workpiece materials (low/medium/high carbon steel, alloy steel, stainless 304/316, gray and ductile cast iron, aluminum 6061/7075, brass, copper, titanium Ti-6Al-4V, Inconel 718, plastics) and 6 tool types (HSS, uncoated carbide, coated carbide TiAlN, ceramic, CBN, PCD)
| operation | record id | cutting speed sfm max (sfm) | cutting speed sfm min (sfm) | cutting speed sfm typical (sfm) | depth of cut in finishing (in) | depth of cut in roughing (in) | feed ipr max (in/rev) | feed ipr min (in/rev) | feed ipr typical (in/rev) | material | material group | notes | specific cutting energy hp per in3 per min (hp/(in3/min)) | surface finish Ra uin typical (uin) | tool life min typical (min) | tool type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| turning_roughing | Inconel_718#ceramic | 900 | 500 | 700 | 0.01 | 0.04 | 0.01 | 0.003 | 0.006 | Inconel_718 | S_superalloy | SiAlON ceramic; dry; high thermal management required; finish passes only | 3.5 | 400 | 5 | ceramic |
| turning_roughing | Inconel_718#coated_carbide | 150 | 50 | 100 | 0.015 | 0.06 | 0.014 | 0.004 | 0.008 | Inconel_718 | S_superalloy | Inconel 718 annealed; flood coolant; work hardening risk | 3.5 | 350 | 10 | coated_carbide_TiAlN |
| turning_roughing | alloy_steel#cbn | 1,200 | 600 | 900 | 0.01 | 0.04 | 0.016 | 0.006 | 0.01 | alloy_steel | P_steel | 4340 hardened 50-65 HRC; CBN only | 1.25 | 50 | 30 | CBN |
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