PCBN(Polycrystalline Cubic Boron Nitride)

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 alloysBabbitt alloysBrass alloysBronze alloysCopper alloysLead alloysMagnesium alloysSilicon aluminumSilver, PlatinumTungsten carbidesZinc alloys Hard cast iron Ni-HardAlloy cast ironChilled cast ironNodular cast iron Soft cast iron Gray cast iron Sintered cast iron Powdered metalSintered iron Hardened steels Tools steelsDie steelsCase hardened steelsBearing steels Nonmetallic materials Epoxy resinsFiberglasscompositeCarbon 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 CastironHigh hardness cast ironNodular cast iron rollCarbide roll 400 ~ 1,00075 ~ 15045 ~ 6010 ~ 15 0.15 ~ 0.450.15 ~ 0.30.6 ~ 0.80.15 ~ 0.25 0.1 ~ 2.00.1 ~ 1.82.0 ~ 3.50.5 ~ 2.5 JPB500 High hardness steel(roughing)High hardness steel(>HrC45)Hardened alloy steel (>HrC35) 60 ~ 140100 ~ 140100 ~ 240 0.15 ~ 0.40.1 ~ 0.20.05 ~ 0.3 0.7 ~ 2.30.1 ~ 0.750.1 ~ 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 ~ 1,000120 ~ 240 0.12 ~ 0.30.12~ 0.3 0.2 ~ 2.00.2 ~ 2.0 JPB500 Hardened steel (>HRC 45)Hardened alloy steel (>HRC 35) 120 ~ 240100 ~ 240 0.1 ~ 0.250.1 ~ 0.35 0.12 ~ 1.00.1 ~ 1.0