M39
SUMIDIA
Binderless
Nano-Polycrystalline Diamond Tool / SUMIDIA Binderless
...
M40
MOLD FINISH MASTER / SUMIDIA Binderless Ball-nose Endmills NPDB Type
...
M41
SUMIDIA
Binderless
M39 to M41
SUMIDIA Binderless
M
SUMIDIA
SUMIDIA
Binderless
SUMI
CRYSTAL
M40
Single
Crystal Diamond
SUMIDIA
Binderl ess
Conventional PCD
150100500
Knoop Hardness HK(GPa)
Load 4.9N
Hardness depends on face orientation
No anisotropy and ultra-hard
Nano-Polycrystalline Diamond Tool
SUMIDIA Binderless
M
Comparison of Structures
SUMIDIA Binderless
SEM Image
Diamond Grains
30 to 50
Diamond Grains
1 to 10μ
Conventional PCD
SEM Image
Application Examples of SUMIDIA Binderless
Ballnose Endmill (Direct Cutting of Carbide) Indexable Insert (Turning of Carbide)
Drill (Drilling of Ceramics) Cutting Tool (Ultra-Precision Cutting of Carbide)
Hardness
SUMIDIA Binderless is polycrystalline diamond that directly
binds nano-order diamond particles with high strength without
using any binders. SUMIDIA Binderless is harder than single-
crystal diamond and has no cleavability. Therefore, it enables
machining of hard, brittle material such as carbides and makes
possible new machining methods.
SUMIDIA Binderless is a pure diamond, but, unlike single-crystal diamonds, has
no anisotropy. Therefore, it displays excellent wear resistance with less uneven
wear.
Thanks to its polycrystalline structure, SUMIDIA Binderless has no cleavability
peculiar to single-crystal diamonds and displays excellent fracture resistance.
General Features
Characteristic
Binder Co
M
SUMIDIA
Binderless
SUMIDIA
SUMIDIA
Binderless
SUMI
CRYSTAL
M41
SUMIDIA
Binderless
MOLD FINISH MASTER
SUMIDIA Binderless
Ball-nose Endmills
The NPDB type enables direct mirror finishing of
carbide, which is impossible for existing single-crystal
or polycrystalline diamonds, by employing nano-
polycrystalline diamond, which is harder than single-
crystal diamond, for the cutting edge.
General Features
Characteristic
Application Example
Close-up of Cutting Edge Direct Cutting of Carbide
NPDB Type Stock Page
Chip Close-up
NPDB Type
Ideal for Finishing of Hard, Brittle Materials Including Carbide
Provides excellent machined surface quality thanks to the sharp cutting edge and optimized edge treatment.
Enables High-Precision Machining and Achieves Long Tool Life
Maintains excellent dimensional accuracy for a long time thanks to the high contour accuracy of the cutting edge and the excellent wear resistance of diamonds.
88
Application to Optical Use (Fly-Eye Lens Mold) Application to Medical Use (μ-TAS Mold)
Work Material
Finishing Tool
Finishing Time
Finishing Conditions
Surface Roughness
Carbide AF1 Ultra-fine Grain Carbide
SUMIDIA Binderless
R0.5 Ballnose Endmill (Finishing)
(Roughing: R0.5 Diamond-Coated Endmill, 55 minutes)
2 hours 40 minutes
n =60,000min
-1
v
f
=300mm/min
p
f
=0.005mm Oil Mist
Ra0.015μm
Work Materia
l
Finishing Tool
Finishing Time
Finishing Conditions
Carbide AF1 Ultra-fine Grain Carbide
SUMIDIA Binderless
R0.3 Ballnose Endmill
1 hour 28 minutes
n =38,000min
-1
v
f
=95mm/min
Machining Allowance=0.003mm
p
f
=0.001mm Wet(Oil based) Cutting Length=8.3m
Ra0.016 to 0.020μm
M
1mm1mm
SUMIDIA
SUMIDIA
Binderless
SUMI
CRYSTAL