B1~31/04.042008.5.94:6PM페이지9
Turning Grades >>>
KORLOY Uncoated Carbide Grades ■ Features ▶
P
Turning
Korloy’s uncoated cemented carbides are designed to optimize machining with uniform quality. Furthermore, Korloy’s cemented carbide manufactured by top quality tungsten carbides, cobalt and refractory carbides (TiC,TaC) has good toughness and wear resistance
Turning Grades
K
■ Advantages P.M.K cemented carbide can be applied for various workpiece. Excellent thermal crack resistance makes it possible to machine in wet cutting. ▶ Fine grain and minimizing chemical affinity to workpiece developed by Special design ▶ High toughness and low cutting force. ▶ ▶
Turning C/B
Workpiece
P
Steel
K Alloyed aluminum Alloyed copper
Recommended cutting speed(m/min)
ISO
ST10
150 (100 ~ 200)
P10
ST15
140 (90 ~ 190)
ST20
130 (70 ~ 180)
ST30A
130 (70 ~ 180)
P30
H02
150 (100 ~ 200)
K01
H01, H05
140 (100 ~ 200)
K10
H10, G10
130 (90 ~ 190)
H01
500 (300 ~ 800)
H01
200 (150 ~ 300)
Application range ST10 ST15 ST20
P20
ST30A H02 H01
Boring Bar
Cast iron
Recommended grade
Turning Inserts External Holder
■ Selection system
H05
K20
H10 G10
K30
Cartridge
■ Main application Composition
Features
Workpiece
P
WC-TiC-TaC-Co
Heat resistance, excellent plastic deformation resistance
Carbon steel, Alloy steel, Stainless steel
M
WC-TiC-TaC-Co
General tools harmonized heat resistance with strength
Carbon steel, Alloy steel, Stainless steel, Cast steel
K
WC-Co
High strength and superior wear resistance
Cast iron, Non-ferrous metal, Plastic, etc
ISO
P
M
K
Thermal expansion Thermal conductivity (cal/cm∙sec∙℃) coefficient(10-6/℃)
Hardness
TRS
Young’s modulus
(HRA)
(kgf/mm2)
(103kgf/mm2)
ST05
92.7
140
-
-
-
ST10
92.1
175
48
6.2
25
ST20
91.9
200
56
5.2
45
ST30A
91.3
230
53
5.2
-
U10
92.4
170
47
-
-
U20
91.1
210
-
-
88
ST30A
91.3
230
53
5.2
-
U40
89.2
270
-
-
-
H02
93.2
185
61
4.4
105
H01
92.9
210
66
4.7
109
G10
90.9
250
63
-
105
Grade
Carbide Shank Boring Bar
■ Properties of Uncoated Carbide
Auto Tools
ISO
� GPa = 102kg/mm2, 1W/mk = 2.39×10-3cal/cm∙sec∙℃
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