PCBN Cutting Tools for Turning

PCBN Cutting Tools (Tool Bits for Turning)

PCBN (Polycrystalline Cubic Boron Nitride) is a superhard material with hardness second only to diamond. It is sintered from CBN micron powder and metal or ceramic binders under high temperature and high pressure. Hardness typically ranges from HV 2500 to 5000. It is often composited with cemented carbide to increase strength, enabling efficient processing.

PCBN tools are used for the machining of hard ferrous metals to improve efficiency, precision, and stability while reducing comprehensive costs. PCBN tools are also suitable for automated production lines and dry cutting applications.

PCBN is a primary material for difficult-to-machine materials. Application areas include: hardened steel, cast iron, high-temperature alloys, and powder metallurgy.

Selection Guide for PCBN Turning Tools

Model	Edge Length	Thickness	Hole Diameter	Details
CCGW	6.35-12.7mm	2.38-4.76mm	2.8-5.5mm	View Details
DCGW	6.35-12.7mm	2.38-4.76mm	2.8-5.5mm	View Details
VBGW	6.35-9.525mm	3.18-4.76mm	2.8-4.4mm	View Details
TCGW	4.76 - 9.525 mm	2.38 - 4.76 mm	2.4 - 4.4 mm	View Details
CNGA	12.7 mm	4.76 mm	5.16 mm	View Details
DNGA	12.7 mm	4.76 - 6.35 mm	5.16 mm	View Details
VNGA	9.525 mm	4.76 mm	3.81 mm	View Details
TNGA	9.525 mm	4.76 mm	3.81 mm	View Details
WNGA	12.7 mm	4.76 mm	5.16 mm	View Details

For more models, please feel free to inquire.

PCBN Grades & Cutting Parameters

Cutting Recommendation	H			K		S
PCBN Grade	BNH10C	BNH20C	BNH30C	BNK10	BNK20	BNS10	BNS20
Workpiece Material	Hardened Steel	Hardened Steel	Hardened Steel	Cast Iron	Ductile Iron	Powder Metallurgy	Powder Metallurgy
Cutting Speed (Vc)	180(150-250) m/min	100(50-150) m/min	80(30-120) m/min	600(300-800) m/min	300(150-450) m/min	300(200-500) m/min	500(300-800) m/min
Feed per Revolution (Fn)	0.1(0.03-0.2) mm/r	0.1(0.03-0.2) mm/r	0.1(0.03-0.2) mm/r	0.1(0.03-0.3) mm/r	0.1(0.03-0.3) mm/r	0.1(0.03-0.3) mm/r	0.1(0.03-0.3) mm/r

PCBN Grade Comparison

Class		Winice	Tungaloy	Mitsubishi	Sumitomo	Sandvik	Kyocera	Hitachi	Dijet	NTK	Seco	Kennametal	Iscar	Taegutec	Widia	Walter	Ceratizit	Centech -EG
H	H10	BNH10C	BXM10 BX330 BX530	MBC020 MB8025	BNC160 BNC200 BN250 BN1000	CB7015 CB7025 CB20 CB50	KBN525 KBN25C KBN25M	BH200	JBN245	B36	CBN060K CBN150 CBN010 CBN200 CBN300 CBN500	KB9610 KB16l0 KB5610	IB50 IB55 IB10H IB10HC	KB50 TB650	WBH10C WBH10P WBH10U	WCB30 WCB50 WCB80	CTL3215 TA100	MN03
	H20	BNH20C	BXM20 BX361D BXA20	MBC020 BC8020 MB8025 MB825	BNC200 BN250 BNX20 BNX25 BN2000	CB7025 CB20 CB7035	KBN30M KBN35M KBN900	BH250	JBN300 JBN330	B22 B36 B40	CH2540 CBN150 CBN010 CBN200 CBN300 CBN500	KB5625 KB1625	IB20H IB25HA IB25HC	TB650	WBH25P	WCB50 WCB80	CTL3215 TA120	MN05
	H30	BNH30C	BXA20 BXM20 BXC50 BX380	MBC020 BC8020 MB835	BNC300 BN350 BNX25		KBN35M KBN900		JBN300 JBN330	B22 B40	GH3515 CBN300 CBN500	KB5625 KB9640 KD120	IB25HA IB25HC		WBH40C		TA201	MN06
K	K10	BNK10	BX470 BX480 BX950	MB710 MB730	BNS800 BN7000 BN7500 BN500 BNC500	CB7525 CB7925 CB50	KBN60M KBN900	BH200	JBN795	B23 B30 B52	CBN200 CBN300 CBN300P CBN400C	KB9640 KD120 KB1630	IB50 IB55 IB86 IB90	KB90A	WBK40U	WCB80 WCB50	TA120 TA201 CTL3215	MN04
K	K20	BNK20	BXC90 BX90S	MB730 MBS140	BNS800	CB50	KBN900	BH250		B23 B30 B52	CBN200 CBN300 CBN300P CBN400C	KB9640	IB90 IB85		WBK45U		CTL3215
S	S10	BNS10	BX950	MB730	BN7000 BK350		KBN65B KBN65M		JBN795				IB90	KB90
S	S20	BNS20	BX470 BX480	MB4020	BNS800						CBN170 CBN010	KB1630	IB05S IB10S	KB90A	WBK45U		TA201

Features

Hardness and Wear Resistance: PCBN hardness is higher than cemented carbide and ceramic tools. It resists cutting wear of hard materials such as hardened steel (above HRC 60) and chilled cast iron. Tool life is 5 to 15 times that of cemented carbide tools, reducing tool change frequency and production costs.
Thermal Stability: Heat resistance reaches 1400-1500°C. Performance remains stable in high-temperature cutting environments, supporting dry cutting and high-speed cutting. This reduces cutting fluid usage and environmental impact.
Chemical Inertness: No chemical reaction occurs with ferrous materials at 1200-1300°C. This prevents bonding and diffusion between the tool and workpiece, ensuring processing accuracy and surface quality in ferrous metal machining.
Friction Coefficient: The friction coefficient is 0.1-0.3. Cutting forces and temperatures are lower compared to cemented carbide, reducing tool-chip sticking while increasing processing efficiency.
Thermal Conductivity: High thermal conductivity allows for rapid dissipation of cutting heat. This reduces thermal deformation and improves dimensional accuracy for heat-sensitive materials.
Processing Adaptability: Suitable for roughing, semi-finishing, and finishing operations. The hard turning process increases efficiency by 3 to 10 times compared to grinding. Applications include the automotive, aerospace, and mold industries.
Edge Retention: The cutting edge maintains its initial geometry during operation. This ensures processing consistency for automated production and high-precision requirements.