Kyocera - Основной каталог 2011-2012 ENG
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Insert Grades
A
Ceramic
Insert Grades Ceramic
Ceramic inserts are capable of running at high speeds, thus reducing expensive
machining time. Hard turning of 38HRC to 64HRC hardened steel, or rough to
finished turning of cast iron are recommended applications for ceramic inserts.
KYOCERA’s ceramic grades are designed to resist oxidation and maintain
hardness at high 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 has improved thermal shock resistance allowing cast
iron cutting 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)
KA30 White Al2O3 - 17.5 4.0 750 • Aluminum Oxide ceramic (Al2O3)
• Application: Finishing of cast iron at high cutting speeds without coolant
• Silicon nitride ceramic (Si3N4)
KS6000 Gray Si3N4 - 15.7 6.5 1230 • Application: High feed and interrupted cutting of cast iron (with or
K without coolant)
• Silicon nitride ceramic (Si3N4)
KS6050 Gray Si3N4 - 15.6 7.8 1200 • Application: Roughing and interrupted cutting of cast iron.
Cast Iron
Focusing on stability. Wet processing is possible.
Grayish Si3N4 Thin • Silicon nitride ceramic (Si3N4) + CVD Coated Carbide (Special Al2O3
white (Special Al2O3 COAT) coating
CS7050 15.6 7.8 1200 COAT)
• Application: Finishing and continuous cutting, and high speed and
high efcient cutting. Wet processing is possible.
K A65 Black Al2O3+TiC - • Aluminum Oxide and Titanium Carbide ceramic (Al2O3+TiC)
20.6 4.5 780 • Application: Semi-roughing to nishing of cast iron, and hardened
materials.
HCast Iron A66N Gold Al2O3+TiC 20 20.1 4.1 • TiN PVD coated Aluminum Oxide and Titanium Carbide ceramic
(TiN coat) 980 (TiN coated Al2O3+TiC)
• Application: Semi-roughing to nishing of hardened materials
Hardened Materials PT600M Blackish Al2O3+TiC 30 20.1 4.1 • Heat-resistant MEGACOAT on Aluminum Oxide and Titanium
(MEGACOAT) red 980 Carbide ceramic (MEGACOAT Al2O3+TiC)
• Application: Semi-roughing to nishing of cast iron, hardened materials and roll materials
Application Maps Hardened Materials
Cast Iron
Low Cutting speed High KA30 Low Cutting speed High
CS7050 PT600M
A66N
PT600M
A65 KS6050
A65
KS6000
Low Fracture resistance (Toughness) High Low Fracture resistance (Toughness) High
Continuous Light interruption Interruption Continuous Light interruption Interruption
High-Temperature Hardness roperties of PVD Coating MEGACOAT
)W (GPa)
"M-TiC Ceramic 40 TiC MEGACOAT
TiCN
30
Hardness
Hardness "M Ceramic
Cermet 20 TiN
TiAIN
Carbide
High Speed Steel 10
0 200 400 600 800 1000 1200 1400
Oxidation temperature (°C)
A12
Temperature (°C)
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