Kyocera - Основной каталог 2010-2011 ENG
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Insert Grades
A
Ceramic
Insert Grades
Ceramic
Ceramics inserts are capable of running at high speeds, thus reducing expensive
machining time. Hard turning of 38HRC to 64HRC hardened steels, or rough to
finished turning of cast irons are recommended applications for ceramic inserts.
KYOCERA’s ceramic grades are designed to resist oxidation and maintain
hardness at elevated temperatures.
Features
• Excellent wear resistance enables high cutting speeds
• Ceramic maintains good surface finishes due to the low affinity to workpiece
materials
• Silicon nitride ceramic (KS6000) has improved thermal shock resistance
allowing cast iron machining using coolants
Features of Ceramic
Workpiece Symbol Color Main Hardness of Hardness of FractureToughness Transverse Advantages
Material Component Coated Layer Substrate (GPa) Strength (MPa)
(MPa•m1/2)
(GPa)
K KA30 White Al2O3 - 17.5 4.0 750 • Aluminum Oxide ceramic (Al2O3)
KS6000 Gray Si3N4 - 15.7 • Application: Finishing of cast iron at high cutting speeds without coolant
Cast Iron 20.6
20.1 • Silicon nitride ceramic (Si3N4)
20.1 6.5 1230 • Application: High feed and interrupted machining of cast iron (with
or without coolant)
K A65 Black Al2O3+TiC - • Aluminum Oxide and Titanium Carbide ceramic (Al2O3+TiC)
20 4.5 780 • Application: Semi-roughing to nishing of cast iron, and hardened
30
materials.
Cast Iron A66N Gold Al2O3+TiC • TiN PVD coated Aluminum Oxide and Titanium Carbide ceramic (TiN
(TiN coat) 4.1 980 coated Al2O3+TiC)
H
PT600M Blackish Al2O3+TiC • Application: Semi-roughing to nishing of hard materials
Hard Materials (MEGACOAT) red
• Heat-resistant MEGACOAT on Aluminum Oxide and Titanium
4.1 980 Carbide ceramic (MEGACOAT Al2O3+TiC)
• Application: Semi-roughing to nishing of cast iron, hard materials and roll materials
Application Maps
Cast Iron Machining Hard Materials Machining
Low Cutting speed High KA30 Low Cutting speed High
PT600M PT600M
A66N A66N
KS6000 A65
A65
Low Fracture resistance (Toughness) High
Low Fracture resistance (Toughness) High Continuous Light Interruption Interruption
Continuous Light Interruption Interruption
High-Temperature Hardness Properties of PVD Coating
)W (GPa) MEGACOAT
40 TiC MEGACOAT
TiCN
"M-TiC Ceramic 30
Hardness
Hardness "M Ceramic 20 TiN Al2O3
Cermet
TiAIN (Reference: Ceramic)
Carbide 10 (Reference: Carbide)
High Speed Steel
0 200 400 600 800 1000 1200 1400
Oxidation temperature (°C)
A10 Temperature (°C) kyocera@kyocera-tools.ru
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