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| PCBN Tools - Inserts, Reamers, Boring bites |
| PCBN (Polycrystalline Cubic Boron Nitride) cutting tools are designed to machine extremely hard or abrasive materials at high metal - removal rates. PCBN tools are used in a wide range of machining operations such as miling, grooving, turning, facing and boring, They are recommended for machining hardened ferrous metals such as hardened steels, cast irons and super alloys. |
| Properties of PCBN Tools |
| Grade |
Content of CBN(%) |
Hardness(Hv) |
| JBN400 |
90 |
4,500 |
| JBN500 |
50 |
3,500 |
| JBN600 |
65 |
4,000 | |
| PCBN tools Applications |
Hard cast iron
Ni-Hard · Alloy cast iron · Chiled cast Iron · Nodular cast iron
Soft cast iron
Gray cast iron
Sintered cast iron
Powdered metal Sintered iron
Hardened steels
Tool steels · Die steels · Case hardened steels · Bearing steels
Super alloy
Inconel-718, -901, -600
|
| Characteristics of PCD and PCBN Tools |
ㆍHardest tools
ㆍThe most thermal conductive tools
ㆍHigh strength property
ㆍThe higher productivity of machining operation
ㆍThe most abrasive material
|
| Comparison of Selected Properties of Cutting tool Materials |
|
Knoop Hardness kg/㎡ |
Transverse Rupture Strength lb/in |
Thermal Conductivity W(m.k) |
| Polycrystalline Diamond |
6,000 |
140,000 ~ 200,000 |
500 |
| Polycrystalline CBN |
3,500 |
100,000 |
100 |
| Cemente carbide |
1,500 ~ 1,800 |
250,000 ~ 300,000 |
40 ~ 80 |
| Silicon nitride |
1,700 |
70,000 ~ 110,000 |
15 ~ 35 |
| Aluminum Oxide |
1,600 |
40,000 ~ 50,000 |
14 ~ 17 |
| High-speed steel |
700 ~ 1,000 |
350,000 ~ 400,000 |
40 ~ 80 | |
| General Guidelines |
In order to get the maximum production rates out of any machining operation, the following guidelines should be closely followed.
- Use PCD cutting tools to machine only nonferrous metals and nonmetallic materials.
- Select a rigid machine with enough horsepower to maintain the cutting speed where PCD tools perform best.
- PCD tools are very effective even when run at conventional carbide speeds.
- Use PCBN tools for machining ferrous metals of Rc 45 hardness or higher and high-temperature alloys with Rc 35 or higher.
- Select a rigid machine with enough horsepower to take advantage of the production potential PCBN cutting tools offer.
- Use negative-rake tools, the largest lead angle, and cutting fluids whenever possible. |
| PCBN Application Guidelines / PCD |
- Turning
|
Grade |
Material Types |
Cutting Speed(m/min) |
Feed Rate(mm/rev) |
Depth of Cut(mm) |
| PCD |
JPD100 |
Plastic alloys / Wood |
300 ~ 1,000
1,000 ~ 2,500 |
0.05 ~ 0.25
0.1 ~ 0.5 |
0.05 ~ 0.3
0.2 ~ 4.5 |
| JPD200 |
Aluminum alloyㆍZincㆍCopper |
600 ~ 1,000 |
0.05 ~ 0.25 |
0.05 ~ 0.3 |
JPD200
JPD200,300
JPD300 |
Aluminum alloy
(Si 4 ~ 8%)
(Si 9 ~ 14%)
(Si 16 ~ 18%) |
800 ~ 2,500
500 ~ 1,290
300 ~ 600 |
0.1 ~ 0.3
0.1 ~ 0.3
0.1 ~ 0.3 |
0.05 ~ 3.0
0.05 ~ 3.0
0.05 ~ 3.0 |
| JPD300 |
Persintered tungseten carbide Sintered carbide |
50 ~ 250
20 ~ 40 |
0.1 ~ 0.4
0.05 ~ 0.2 |
0.1 ~ 0.4
0.02 ~ 0.45 |
| PCBN |
JBN400 |
Cast Iron
High hardness cast iron
Nodular cast iron roll
Carbide roll |
400 ~ 1,000
75 ~ 150
45 ~ 60
10 ~ 15 |
0.15 ~ 0.45
0.15 ~ 0.3
0.6 ~ 0.8
0.15 ~ 0.25 |
0.1 ~ 2.0
0.1 ~ 1.8
2.0 ~ 3.5
0.5 ~ 2.5 |
| JBN500 |
High hardness steel(roughing)
High hardness steel(finishing>HrC45)
Hardened alloy steel(>HrC35) |
60 ~ 140
100 ~ 140
100 ~ 240 |
0.15 ~ 0.4
0.1 ~ 0.2
0.05 ~ 0.3 |
0.7 ~ 2.3
0.1 ~ 0.75
0.1 ~ 2.5 | |
- Milling
|
Grade |
Material Types |
Cutting Speed(m/min) |
Feed Rate(mm/rev) |
Depth of Cut(mm) |
| PCD |
JPD300 |
Aluminum alloy
(Si 14%)
(Si 15%) |
300 ~ 3,000
300 ~ 1,200 |
0.1 ~ 0.4
0.05 ~ 0.2 |
0.1 ~ 4.0
0.02 ~ 0.45 |
| PCBN |
JBN400 |
Cast iron (Hb 180~230)
Hardened cast iron (>Hb 400) |
400 ~ 1,000
120 ~ 240 |
0.12 ~ 0.3
0.12 ~ 0.3 |
0.2 ~ 2.0
0.2 ~ 2.0 |
| JBN500 |
Hardened steel (HrC45)
Hardened alloy steel (HrC35) |
120 ~ 240
100 ~ 240 |
0.1 ~ 0.25
0.1 ~ 0.35 |
0.12 ~ 1.0
0.1 ~ 1.0 | | | | | |
