Machining Speeds Feeds: boring
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| boring | Inconel_718#coated_carbide | 160 | 60 | 110 | 0.006 | 0.03 | 0.007 | 0.002 | 0.004 | Inconel_718 | S_superalloy | Flood coolant; positive rake; fresh edge; minimal overhang | 3.5 | 300 | 12 | coated_carbide_TiAlN |
| boring | aluminum_6061#pcd | 5,000 | 1,500 | 2,800 | 0.01 | 0.06 | 0.014 | 0.004 | 0.008 | aluminum_6061 | N_nonferrous | PCD preferred for production; flood or mist; Ra 32 uin achievable | 0.25 | 32 | 600 | PCD |
| boring | gray_cast_iron#ceramic | 1,500 | 700 | 1,100 | 0.01 | 0.04 | 0.011 | 0.004 | 0.007 | gray_cast_iron | K_cast_iron | Al2O3 ceramic; dry; high SFM finishing | 0.75 | 250 | 40 | ceramic |
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