New CBN Small Diameter Ball Nose Endmills Type BNBP
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New CBN Small Diameter Ball Nose Endmills Type BNBP - 1

TOOLING NEWS New CBN Small Diameter Ball Nose Endmills Type BNBP High precision machining of hardened steels < H R C70 with long tool life Super tough grade SUMIBORON BN350 prevents chipping of the cutting edge Width of Flank Wear (mm) Machined Surface MOULD FINISH MASTER MOULD FINISH MASTER R1,0 Ball endmill, Cutting data: Surface blemish Work material: X155CrVMo12-1 (HRC60) N = 20.000 rpm, f t = 0,05 mm/tooth (v f = 2.000mm/min) doc = 0,05 mm, woc = 0,05 mm, Air blast High Speed Machining -- Width of Flank Wear (mm) Coated carbide endmill Tool life difference 10 times MOULD FINISH MASTER R1,0 Ball endmill, Cutting data: Work material: X155CrVMo12-1 (HRC60) N = 40.000 rpm, f t = 0,05 mm/tooth (v f = 4.000mm/min) doc = 0,05 mm, woc = 0,05 mm, Oil mist Excellent surface finish compared with competitor’s CBN and coated carbide endmills

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New CBN Small Diameter Ball Nose Endmills Type BNBP - 2

SUMIBORON Endmills 6,0 mm (Shank Diam.) 4,0 mm (Shank Diam.) ”FINISH MASTER” Type BNBP MOULD FINISH MASTER Shank Diam. Radius of ball nose Spindle revolutions: N (rpm), Feed rate per tooth: f t (mm/ tooth), Depth of cut: doc (mm), Wide of cut: woc (mm) Pre-hardened steel, Die steel ( ~ HRC52) Important Notes (1) For stable machining, a more rigid machine is recommended. (2) Air blast or oil mist coolant is recommended. (3) Shorten overhang as much as possible. ( Germany ) SUMITOMO ELECTRIC Hartmetall GmbH Siemensring 84, D - 47877 Willich High speed tool steel Recommended Cutting Conditions...

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