MOLD FINISH MASTER
SUMIBORON Mold Finish Master BNBP Type
SUMIBORON Mold Finish Master BNBC Type
R Ballnose
R Ballnose
For Copper Electrodes
H
● Achieves high precision machining with precise ball radius of ±0.005mm. ● Combination of SUMIBORON BN350 with excellent fracture resistance and cutting edge designed with negative rake angle provides stable, interrupted cutting.
● Ballnose radii of 0.1 to 0.5mm are covered by this series. ● Achieves high quality milling with high precision cutting edge.
High edge sharpness and wear resistance Sharp Cutting Edge
Large Negative Rake Angle
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Central edge stabilizes machined surface quality ● Strong cutting edge enables use in roughing applications
● Achieves further improved tool life
MOLD FINISH MASTER
Coated Carbide
MOLD FINISH MASTER
Competitor’s Carbide + CrN-Coated Product
No fracture
Breakage on central edge
Low Wear (Cutting Length 15.75")
High Wear (Cutting Length 3.94")
Work Material:
STAVAX(52HRC)
Work Material:
Tough-Pitch Copper (Side Milling)
Tool: BNBP 2R100-0554 ( R 1.0) Cutting Conditions: n = 25,000 RPM, v f = 59" IPM a p = 0.004", p f = 0.008" Oil Mist
Tool: BNBC 2R030-0304 ( R 0.3) Cutting Conditions: n = 30,000 RPM, v f = 27.56" IPM a p = 0.014", a e = 0.0012" Oil Mist
● Adoption of material with high CBN content provides excellent edge-sharpness performance and wear resistance.
● Excellent wear resistance and machined surface quality
0.0016
0.0016
Large wear - burr formation
Carbide + CrN Coat
Coated Carbide
0.0012
0.0012
0.0008
0.0008
MOLD FINISH MASTER
BNBC Type
Difference in Tool Life
Small amount of wear
0.0004
0.0004
MOLD FINISH MASTER BNBP Type
Longer Tool Life
0
0
4 8 12 20 30 40 60 80 100 120 200 250 300 350 (0.5h) (1h) (2h) (4h) (11h) (14h) 400 Cutting Length (yds) (Cutting Time)
0
50
100
150
200
250
Cutting Length (yds)
Tool Wear Comparison
Tool Wear Comparison MOLD FINISH MASTER
Competitor’s Carbide + CrN-Coated Product
MOLD FINISH MASTER (6 passes)
Coated Carbide (2 passes)
Microwear, can still be used Large amount of wear
Small amount of wear
Large amount of wear
Ra 0.347
Ra 1.368
Good cutter mark surface on BNBC Type
Good machined surface
Burr formation
Work Material:
Tough-Pitch Copper
Work Material:
STAVAX(52HRC)
Tool: BNBC 2R030-0304 ( R 0.3) Cutting Conditions: v c = 187 SFM, n = 30,000 RPM
Tool: BNBP 2R030-0154 ( R 0.3) Cutting Conditions: n = 25,000 RPM, v f = 59" IPM a p = 0.002", p f = 0.004" Oil Mist
f z = 0.0003" IPT, v f = 15.75" IPM a p = 0.0002", a e = 0.002" Oil Mist
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