Каталог Sumitomo пластины с алмазными вставками Sumidia - страница 5

SUMIDIA Binderless
NPD10
■ General Features
By using nano-polycrystalline diamond for the cutting edge, these tools achieve
excellent wear resistance and fracture resistance compared to tools made with
previous polycrystalline diamond.
In particular, nano-polycrystalline diamond makes it possible to achieve improved
machining accuracy and long tool life for machining brittle materials such as carbide, etc.


■ Characteristics
● Best suited for high precision machining of carbide
Achieves high precision machining of carbide with nano-polycrystalline diamond, which has excellent wear resistance.
● Maintain excellent dimensional accuracy over long periods
Greatly reduces the number of times that the tool must be replaced compared to previous diamond tools, improving work efficiency and
reducing total cost.
● Applicable to machining brittle materials
Makes it possible to perform turning on brittle materials (ceramics, etc.) that could previously only be machined through grinding.

■ Applicable Range (Carbide Machining)
1. Hardness less than 88 HRA 2. Hardness 88 HRA or more
0.20 0.20
Depth of cut ap (mm)


Depth of cut ap (mm)


0.15 0.15

0.10 0.10

0.05 0.05

0 0.05 0.10 0.15 0.20 0 0.05 0.10 0.15 0.20
Feed rate f (mm/rev) Feed rate f (mm/rev)
■ Recommended Cutting Conditions (Carbide Machining)
Work material Cutting conditions
Class Hardness (HRA) SEI Grades Cutting speed vc (m/min) Feed rate f (mm/rev) Depth of cut ap (mm/rev)
70 83 or more and
VM G7
60 5 to 20 to 30 0.03 to 0.10 to 0.20 0.03 to 0.10 to 0.20
VC less than 88 G6
50
VM G5
VC 40 88 or more 5 to 15 to 20 0.03 to 0.05 to 0.07 0.03 to 0.05 to 0.07
D2
Lower limit value - recommended value - upper limit value Cutting oil: Dry
■ Machining Accuracy
External Turning of Carbide VC50 (87HRA)
0.025 30mm
Boring of Carbide VM 30 (91HRA) M
SUMIDIA


0.10 30mm
Dimension variation


Conventional grade
0.020 ●
Dimension variation


0.08
ø50mm
(mm)


0.015
ø26mm


● 0.06
(mm)


0.010 Conventional grade
0.04
● SUMIDIA
● ●
0.005 ● SUMIDIA Binderless
● NPD10 0.02 ●
●
● ■■■■
■ ● ■■■■■■■■■■■■■■■■ ●● NPD10 NPD10 has no dimension
●●
SUMICRYSTAL
0 100 200 300 400 500 NPD10 has no dimension ■
●■■■■■■■■■■■■■■■■■■■
0 200 400 600 800 1,000 1,200 variation even with cutting
Cutting distance (m) variation even with cutting distance of 1,100 m.
distance of 450 m. Cutting distance (m)

Work material: Carbide VC50 (87HRA) Work material: Carbide VM30 (91HRA)
Insert: DCMW11T304RH Insert: DCMW11T304RH
Cutting conditions: vc = 20 m/min, f = 0.1 mm/rev, ap = 0.1 mm, Dry Cutting conditions: vc = 20 m/min, f = 0.05 mm/rev, ap = 0.05 mm, Dry


M5