M43
SUMICRYSTAL
..........................................................
M43
SUMICRYSTAL UP
....................................................
M45
SUMICRYSTAL PD / PDX
..........................................
M46
SUMICRYSTAL
M43 to M46
SUMICRYSTAL
M
SUMIDIA
SUMIDIA
Binderless
SUMI
CRYSTAL
SUMICRYSTAL
M44
General Features
In the past, the use of natural diamond was severely restricted due
its limited supply and unpredicatable nature.
Now with SUMICRYSTAL, consistency in quality, stability and supply
can be assured.
Synthetic Conditions
Pressure 5 to 6GPa
Temperature 1,300 to 1,600°C
Pressure
Pressure
Heater
Pressure
Medium
Pressure Die
Carbide
Piston
Carbon
Source
SUMICRYSTAL
Solvent
Metal
High
Temperature
Low
Temperature
Seed Crystal
Temperature
Difference
(20 to 50°C)
15
10
20
25
30
Natural Diamond SUMICRYSTAL
Microfracture Strength (GPa)
0
500
1000
1500
2000
2500
50 100
SUMICRYSTAL
Natural Diamond
Type a
Temperature (°C)
Thermal Conductivity of Synthetic and Natural Diamond
Natural Diamond Type a
Thermal Conductivity (W/m·K)
Production Method
SUMICRYSTAL is synthesized under ultra-high pressures from 5 to 6GPa and high
temperatures from 1,300 to 1,600°C. A temperature gradient is created and use to
melt the carbon source into molten solvent metal which allows the diamond to grow
on a seed crystal. Through this stringent control of pressures and temperatures, a
more stable structure with minimal impurities can be obtained.
Properties
SUMICRYSTAL has 4 main advantages against natural diamond.
1) Structural advantage: Natural diamond is rounded and the
direction of latice is difficult to determine with the naked eye.
However, SUMICRYSTAL has a distinct crystal face which makes
the identification much easier.
2) Uniform quality: Due to the strict controlled conditions in which
the crystals are grown, uniform quality can be obtained consistently.
3) Availability: Unlike the limited supply of natural diamonds,
SUMICRYSTAL can be mass produced.
4) Better Characteristics: SUMICRYSTAL type Ib, which is used
for cutting tools, have the best thermal conductivity as compared
to any other materials; This characteristic is very similar to the
rare natural diamond type IIa (refer to bottom right graph) desipite
SUMICRYSTAL having minute amounts of nitrogen.
The bottom left graph shows that SUMICRYSTAL has similar or even
better microfracture strength as compared to the natural diamond.
Synthetic Single Crystal Diamond
SUMICRYSTAL
M
SUMIDIA
SUMIDIA
Binderless
SUMI
CRYSTAL
M45
Standard Type
Rectangular parallelepiped type with 6 (100) faces.
General Features
Today’s sophisticated cutting-edge technologies, such as ultra-precision machining
processes, as well as those used for magnetic discs and polygonal mirrors in particular are
seeing rapid development.
SUMICRYSTAL UP blanks have the high performance and reliability that make them
optimally suited to these applications.
Characteristics
(1) High quality with very low variance. Stable wear resistance with excellent resistance to edge chipping.
(2)
Uniform shape ensures minimal stock removal during cutting edge formation for easy cutting edge formation.
Economy Type
Peripheral and upper growth faces are not cut. Features include
having large sizes and low cost.
Ultra-Precision Tooling Grade
SUMICRYSTAL UP
Standard Items
STANDARD TYPE Units mm
Shape Cat. No. L W C
1
,C
2
T
W
T
C1
L
C2
The arrows indicate the
direction for easy polishing.
(Facing orientations are all
(100) except the corners.)
UP 282512
2.8 to 3.5 2.5 to 3.5
Up to
0.8
1. 2
±0.1
UP 282515
2.8 to 3.5 2.5 to 3.5
Up to
0.8
1. 5
±0.1
UP 303015
3.0 to 3.5 3.0 to 3.5
Up to
0.3
1. 5
±0.1
UP 301415
3.0 to 3.5 1.4 to 1.7
Up to
0.3
1. 5
±0.1
UP 333014
3.3 to 4.0 3.0 to 4.0
Up to
0.9
1. 4
±0.1
UP 333017
3.3 to 4.0 3.0 to 4.0
Up to
0.9
1. 7
±
0.1
UP 353514
3.5 to 4.0 3.5 to 4.0
Up to
0.4
1. 4
±0.1
UP 353517
3.5 to 4.0 3.5 to 4.0
Up to
0.4
1. 7
±
0.1
UP 351717
3.5 to 4.0 1.7 to 2.0
Up to
0.4
1. 7
±0.1
*Sizes other than those indicated above can be ordered.
Economy Items
Economy Type (Units mm) Min. guaranteed dimensions
Shape Cat. No. D T
T
UP 2010
2.0
1. 0
UP 2012
1. 2
UP 2510
2.5
1. 0
UP 2512
1. 2
UP 2515
1. 5
UP 3010
3.0
1. 0
UP 3012
1. 2
UP 3015
1. 5
UP 3510
3.5
1. 0
UP 3512
1. 2
UP 3515
1. 5
UP 4010
4.0
1. 0
UP 4012
1. 2
UP 4015
1. 5
UP 4020
2.0
UP 4510
4.5
1. 0
UP 4512
1. 2
UP 4515
1. 5
UP 4520
2.0
UP 5010
5.0
1. 0
UP 5012
1. 2
UP 5015
1. 5
UP 5020
2.0
*Sizes other than those indicated above can be ordered.
SUMICRYSTAL
Cutting Tool Using SUMICRYSTAL UP
Wiper Insert for Aluminium Body Cutter RF Type
SumiCrystal SC10 Wiper Insert
Utilising Sumitomo Electric Hardmetal's SumiCrystal as a cutting edge.
SumiCrystal is a single-crystal diamond, which is produced using an
unique superhigh pressure technology.
SumiCrystal can maintain its edge sharpness better than sintered
diamonds, this greatly reduces burr formation.
Machined Surface Using SUMICRYSTAL
(Single Crystal Diamond)
Machined Surface Using SUMIDIA
(PCD)
* This product was jointly developed with A.L.M.T. Corp.
M31
M
SUMIDIA
SUMIDIA
Binderless
SUMI
CRYSTAL
SUMICRYSTAL
M46
SUMICRYSTAL PD and PDX are synthetic diamonds
processed into thin prism shapes for use as dressers. These
dressers can be used in automated, high precision dressing
providing reliable performance and longer tool life, as
compared to natural diamonds.
SUMICRYSTAL PD
Characteristics
Revolutionary Elongated Shape
(1) Improved clamp strength prevents diamond pull out.
(2) Consistent cross-section prevents deterioration.
(3) Uniform face orientation promotes stable tool life.
Standard Items
Units mm
Cat. No.
Stock
TWL
W
L
Laser Cut
T
PD 0220
0.2
±0.05
0.2
±0.05
2.0 to 2.5
PD 0420
0.4
±0.05
0.4
±0.05
2.0 to 2.5
PD 0630K
0.6
±0.1
0.6
±0.1
3.0 to 4.0
PD 0640K
4.0 to 5.0
PD 0650K
From 5.0
PD 0830K
0.8
±0.1
0.8
±0.1
3.0 to 4.0
PD 0840K
4.0 to 5.0
· 'L' is the distance between the
centre points of both ends.
· Both upper and lower (111) faces
are cleaved.
PD 0850K
From 5.0
PD 1130K
1. 1
±0.1
1. 1
±0.1
3.0 to 4.0
PD 1140K
4.0 to 5.0
Laser Cut Face
(211)
Cleaved Face
( 111)
(110) Face
Cleaved Face
( 111)
W
L
T
Single cleaved side face with
pre-determind abrasive resistant direction.
PD 0630TK
0.6
±0.1
0.6
±0.1
3.0 to 4.0
PD 0640TK
4.0 to 5.0
PD 0830TK
0.8
±0.1
0.8
±0.1
3.0 to 4.0
PD 0840TK
4.0 to 5.0
PD 1130TK
1. 1
±0.1
1. 1
±0.1
3.0 to 4.0
PD 1140TK
4.0 to 5.0
*Sizes other than those indicated above can be ordered.
SUMICRYSTAL PDX
Characteristics
New Product With Modified Face Orientation
(1) Face orientation (211) provides better tool life than conventional
PD blanks.
(2) Parallel abrasive resistant faces (111) facilitate blank setting
during manufacturing of dressers.
Standard Items
Units mm
Cat. No.
Stock
TWL
W
T
L
Laser Cut
PDX 0220
0.2
±0.05
0.2
±0.05
2.0
±0.1
PDX 0320
0.3
±0.05
0.3
±0.05
PDX 0420
0.4
±0.05
0.4
±0.05
PDX 0630
0.6
±0.1
0.6
±0.1
3.0
±0.5
PDX 0640
4.0
±0.5
PDX 0830
3.0
±0.5
PDX 0840
0.8
±0.1
0.8
±0.1
4.0
±0.5
· 'L' is the distance between the
centre points of both ends.
· Both upper and lower (111) faces
are cleaved.
PDX 1130
1. 1
±0.1
1. 1
±0.1
3.0
±0.5
PDX 1140
4.0
±0.5
*Sizes other than those indicated above can be ordered.
Orientation PDX
(211) Laser Cut Face
Abrasive
Resistant
Direction
(211) Face
(111) Cleaved Face
KK Type
Apart from the standard items listed above, PD is also available in
"KK Type" with both end-faces laser cut.
Both End-faces are Laser Cut
Laser Cut Face Laser Cut Face
· When ordering, please include "KK"
behind the standard catalogue no.
(ex. PD KK,
PD TKK)
· PD0220, 0420 are not available in
"KK Type".
K Type
Apart from the standard items listed above, PDX is also available in
"K Type" with both end-faces laser cut.
Both End-faces are Laser Cut
Laser Cut Face Laser Cut Face
· When ordering, please include
"K" behind the standard
catalog no.
(ex. PDX K)
· PDX0220, 0320 and 0420 are not
available in "K Type".
Orientation PD
55°
(211) Laser Cut Face
<110>
Abrasive
Resistant
Direction
(110) Face
(111) Cleaved Face
55°
(211)
Laser Cut Face
Cleaved
Face (111)
<110>
Abrasive
Resistant
Direction
(110)
Face
(111)
Cleaved Face
PD PD-T
Dresser Blank
SUMICRYSTAL PD / PDX
M
SUMIDIA
SUMIDIA
Binderless
SUMI
CRYSTAL