1. PCD Materials

1-1) ADICO PCD is largely divided into 3 types (“S” series, “X” series, and “U” series) and the characteristics of each types are described in the table below.
"S" series
"X" series
"U" series
Microstructure Characteristics
High in diamond content, high degree of direct diamond-to-diamond bondings
Relatively low in diamond content, a lot of metal binder phases and therefore relatively low in direct diamond-to-diamond bondings
Compared to “S” series, this series is made by maximizing the content of diamond and by maximizing diamond-to-diamond bondings, so that it can be made very hard and highly abrasion-resistance. However, there is less metal binder, which relatively deteriorates wire EDM cuttability
Impact Resistance & Abrasion Resistance
Excellent abrasion resistance due to high hardness
Despite high mechanical impact and thermal impact resistance, relatively low abrasion resistance
Relatively more wheel consumption for making PCD tools
Little chipping, high grindability when making PCD tools
Built-Up Edge
Little built-up edge in case of Al finish
Relatively a bit of built-up edge if Al finish is done
Electrical Conductivity
Compared to conventional PCD, featuring good electrical conductivity, easy for EDM finish
Shows good electrical conductivity, perform with superior cutting speed during EDM processing, no edge burning. Fit with EDM process for specified shape.
Divided into coarse, medium, and fine grades, with similar qualities to conventional PCD (GE 1600, 1300, 1500)
Divided into coarse, medium, and fine grades, with unique properties (heat resistance, impact resistance, abrasion resistance (stone)
Specially Recommended Applications
CS: Outstanding performance and fine finish can be rendered through high silicon aluminum finish
MX: Wooden resin mixture, such as MDF and HDF, which generates a lot of heat during processing
- Coated wood with, for example, SiC Al2O3 
CX: Suitable for interrupted cutting of aluminum 

1-2) ADICO PCD is classified into 3 grades, according to the particle size of diamond comprising PCD: Coarse, medium, and fine.

* Images of Composition of Each Grade

1-3) ADICO PCD Cutting Tool Blank Application Areas
Workpiece Materials
Application Industries
(Automotive, Hydraulic, Aircraft, Aerospace, Construction)
Non-ferrous alloys, Plastics, Woods, MMC, Composites
Fine grain PCD ("F-grade")
Aluminium alloys & Copper alloys
FS ‥‥‥‥‥‥
Si-Al alloys (for higher Si-content)
Plastics, Fiberglass
FX ‥‥‥‥‥‥
Si-Al alloys
Plastics, Fiberglass
FU ‥‥‥‥‥‥
More wear-resistant material
(ex. best surface finish for fuselage)

UFS ‥‥‥‥‥‥
High impact resistance, Mirror finishing
Al alloys, composite material, Titanium, etc
Medium grain PCD ("M-grade")
Woodworking & Metalworking
MS ‥‥‥‥‥‥
Metal working (reaming, milling, machining)
(ex. automotive parts)
Good where specific problems exist in Woodworking
(ex. abrasive plastics, abrasive wood-based boards)
MX ‥‥‥‥‥‥
Particle board, MDF, Cement board
Ceramic coated wooden-floor
MU ‥‥‥‥‥‥
Difficult-to-machine material(carbon-fibre composite, CFRP, ceramic parts, plastic lens, Al2O3-coated laminated floor)
Coarse grain PCD ("C-grade")
More impact required & interrupted cutting
CS ‥‥‥‥‥‥
For special purpose with higher diamond content
(ex. MMC-milling, ceramics, WC-machining)
CX ‥‥‥‥‥‥
High Si-Al alloys (20% Si)
Metal matrix composites (MMC)
Plastic composites (glassfiber)
Soft gray cast iron (ex. crank-shaft bore machine)
CU ‥‥‥‥‥‥
For even more useful for machining difficult-to-machine material
(ex. carbon-fibre composite body, PCB, CFRP, SiC reinforced Al-alloys, Kevlar)

* ADICO PCD Characteristics Chart