Alumina-based ceramics (White ceramics)

Characterized by high oxidation resistance and adhesion resistance. This ceramic utilizes alumina that is thermally and chemically stable. This ceramic is best suited for high-speed cutting applications where cutting temperature tends to be high with no coolant.

Gray cast iron, Finishing,  Dry cutting, White ceramic

Gray cast iron, Finishing, Dry cutting, White ceramic

Alumina-based ceramics (White ceramics)

HC1

Ideal grade for high-speed finishing of cast iron

HC1

Brake rotor
Gray cast ironBrake rotor
2100 SFM
.012 IPR
.020" DOC
DRY
NTK : HC1 130 pcs
Competitor's
black ceramic
65 pcs
Features
  • Best wear resistance
  • Stable machining performance in many high-speed machining applications
Grade Work material Application Purpose Cutting speed (SFM) Feed
(IPR)
Depth of cut (inch) DRY WET
HC1 Gray cast iron Turning Finish 1200-2100 .004-.016 .020-.080  

HW2

Alumina-based ceramic grade with high toughness

HW2

Cylinder liner
Chilled linerCylinder liner
1200 SFM
.012 IPR
.080" DOC
DRY
NTK : HW2 70 pcs
Competitor's
white ceramic
30 pcs
Features
  • Outstanding fracture toughness
  • Stable machining performance in many high-speed machining applications
Grade Work material Application Purpose Cutting speed (SFM) Feed
(IPR)
Depth of cut (inch) DRY WET
HW2 Gray cast iron Turning Rough-Finish 1200-2100 .004-.016 .020-.080  
Cylinder Liners Turning Rough-Finish 600-1800 .008-.016 .020-.100