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PCBN(Polycrystalline Cubic Boron Nitride)

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Country / Year Established: South Korea /

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Product name	PCBN(Polycrystalline Cubic Boron Nitride)	Certification	-
Category	Machinery Tools	Ingredients	-
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Product Information

Features

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 milling, grooving, turning, facing, and boring. They are recommended for machining hardened ferrous metals such as hardened steels, cast irons and superalloys.

Characteristics

Hardest tools
The most thermal conductivity tools
High strength property
The higher productivity of machining operation
The most abrasive material

Properties

Grade	Particle size (mm)	Hardness (Hv)
JPB400	90	4,500
JPB500	65	3,500

Properties Comparison of Cutting Tools

-	Knoop Hardness(kg/mm2)	Transverse Rupture Strength(lb/in2)	Hardness (Hv)
Polycrystalline Diamond	6,000	140,000 ~ 200,000	500
Polycrystalline CBN	3,500	100,000	100
Cemented 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

Tool Applications

PCD tool applications		PCBN tool applications
Non ferrous metals	Aluminum alloys Babbitt alloys Brass alloys Bronze alloys Copper alloys Lead alloys Magnesium alloys Silicon aluminum Silver, Platinum Tungsten carbides Zinc alloys	Hard cast iron	Ni-Hard Alloy cast iron Chilled cast iron Nodular cast iron
		Soft cast iron	Gray cast iron
		Sintered cast iron	Powdered metal Sintered iron
		Hardened steels	Tools steels Die steels Case hardened steels Bearing steels
Nonmetallic materials	Epoxy resins Fiberglass composite Carbon phenolics	Superalloy	Incornel -718 -901 -600

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.

Application Guidelines

Turning

-	Grade	Material Types	Cutting Speed (m/min)	Feed Rate (mm/rev)	Depth of Cut (mm)
PCBN	JPB400	Castiron 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
PCBN	JPB500	High hardness steel(roughing) High hardness steel(>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)
PCBN	JPB400	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
PCBN	JPB500	Hardened steel (>HRC 45) Hardened alloy steel (>HRC 35)	120 ~ 240 100 ~ 240	0.1 ~ 0.25 0.1 ~ 0.35	0.12 ~ 1.0 0.1 ~ 1.0