
SUMIBORON 1 Flute Helical Master BNES Type ● Special Endmill for Hardened Steel Heat Resistant Alloy Tempered Steel Ti Alloy Graphite Carbon Copper Pre-hardened Cast Iron Al Alloy Carbide Hardened Steel Stainless Coated 1 CFRP Steel Steel Alloy Alloy Die Steel Steel 45 to 55 55 to 60 60 to 65 Steel HRC HRC HRC Flute S S G G H H Grades Side Milling e Edg ting l Cut ica Hel gn esi e et D ron rad Pock m iBo 350 G a l Su BN ci Spe ■ Cutter Body Dimensions (mm) Stock Diameter Depth of cut Length Length Shank DC –0.1 Cat. No. 0 BN350 DC APMX LU LF DMM DMM BNES 1060 D 6.0 7.0 11.0 60 10 1080 D 8.0 10.0 14.0 70 10 R0.2 APMX 1100 D 10.0 12.0 17.0 75 12 LU 1120 D 12.0 14.0 20.0 80 12 LF 1140 D 14.0 16.0 21.5 80 16 15° BNES 1160 D 16.0 18.0 24.0 80 16 ● For 3-dimensional profile milling, use SUMIBORON Ball Endmill BNBS Type, or MOLD FINISH MASTER BNBR Type Helix Angle or BNBP Type. ■ Recommended Cutting Conditions Hardness of work H 50 to 57HRC H 58 to 65HRC ae Con d ition Cutting Speed 100 to 170m/min Cutting Speed 80 to 150m/min s External Cutting Speed n Feed Rate vf Depth of Cut ae Cutting Speed n Feed Rate vf Depth of Cut ae øDc (mm) (min-1) (mm/min) (mm) (min-1) (mm/min) (mm) ap ø6 to 8 4,000 to 9,000 240 to 540 Up to 0.1 3,200 to 8,000 150 to 370 Up to 0.08 ø10 to 12 2,700 to 5,400 180 to 360 Up to 0.15 2,100 to 4,800 120 to 370 Up to 0.12 Max p = Endmill Diameter ø14 to 16 2,000 to 3,800 140 to 260 Up to 0.2 1,600 to 3,400 110 to 230 Up to 0.15 ● Dry cut (Air Blow) and Down cut are recommended. ● Make the tool overhang as short as possible and use a rigid machine. ■ Performance ● Long Tool Life and High Efficiency ● Excellent Surface Roughness Tooling · Side cut Conditions Tooling · Side cut Conditions · Work material : SKD11(Hardened) 60HRC · Work material : SCr15 ae ae A · Conditions : (1) vc=100m/min +DUGHQHG 55 to 58HRC vf =186mm/min · Conditions : vc = 130m/min L (2) vc=40m/min B vf = 310mm/min vf =186mm/min Down cut, Dry Down cut, Dry ap ap ap = 4mm ae = 0.05mm SUMIBORON ap=8mm ae=0.05mm Results Results 0.12 2 m 2 m (1) BNES1080 Flank Wear Width (mm) 0.10 F 0.25mm 0.25mm 0.08 Notch wear Chattering 0.06 (2) Comp. A’s Coated endmill Able to continue A Dir. B Dir. F for hardened steel 0.04 D D 2 m D (2) Straight flute 2 m D D 0.02 (1) BNES1120 type (ø8) 0.25mm 0.25mm 0 5 10 15 20 25 Cutting Distance (m) A Dir. B Dir. L119