PCBN18

Square · Negative Angle · Perforated

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Our polycrystalline cubic boron nitride (PCBN) is a superhard cutting tool material produced by sintering CBN micropowder under high temperature and pressure. It typically uses cemented carbide as a substrate, with a CBN layer thickness of 0.5–3.0 mm. featuring randomly interwoven grains and a uniform structure. It combines ultra-high hardness, excellent thermal stability, and reliable cutting performance, making it specifically suited for high-precision machining of hard materials and difficult-to-machine alloys. It is a key core material in the high-end manufacturing sector. Its microhardness reaches 3000–5000 HV, with excellent high-temperature hardness retention; its thermal conductivity is 100–300 W/(m·K), ensuring stable heat dissipation under high-temperature conditions; It exhibits thermal stability up to 1200–1400°C, resists oxidation during high-temperature cutting, does not react chemically with iron-based materials, and maintains strong dimensional stability; with a coefficient of friction of 0.1–0.3, it generates low cutting forces, minimizes built-up edge formation, and produces machined surfaces with high surface finish and excellent consistency. PCBN enables consistent high-efficiency machining at cutting speeds of 80–300 m/min, feed rates of 0.05–0.3 mm/r, and cutting depths of 0.1–5 mm. It offers strong edge retention and outstanding wear resistance, with a service life significantly longer than that of cemented carbide and ceramic tools.

This material is suitable for difficult-to-machine materials such as hardened steel, die steel, high-speed steel, superalloys, high-hardness cast iron, cemented carbide, and iron-based/nickel-based alloys. It has been widely and successfully applied in high-end manufacturing scenarios: in the aerospace sector for the finishing of superalloy engine blades, precision combustion chamber components, and titanium alloy and high-strength steel structural parts; In the automotive manufacturing sector, it is used for hard turning and high-efficiency machining of crankshafts, camshafts, bearings, gears, cylinder blocks, cylinder liners, and precision components of fuel injection systems; in the mold manufacturing sector, it is used for post-hardening machining of precision stamping dies, injection molds, and die-casting molds, enabling turning to replace grinding and significantly improving efficiency; In the general precision manufacturing sector, it is used for ultra-precision machining of high-precision bearing rings, precision shafts, hydraulic valve blocks, medical device implants, and surgical instruments; In the construction machinery and rail transit sectors, it is used for stable, high-volume machining of high-strength gears, transmission components, and high-hardness wear-resistant parts. PCBN consistently delivers high-efficiency, high-precision, and highly consistent dry cutting and hard-to-cut machining, making it a core superhard material that underpins high-end equipment manufacturing, precision machining upgrades, and efficient production.

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Tag list： PCBN18

Category:

PCBN Tools for Hard Metals

Product Description

Product Parameters

H	Hardened Steel Series
K	Vermicular Graphite Cast Iron Series
S	High-Temperature Alloys/Titanium Alloys Series

Illustration	Model	Blade Specifications (mm)					Number of cutting edges	H						K		S
Illustration	Model	RE	LE	IC	S	D1	Number of cutting edges	XN6010	XN6020	XN6025	XN6030	XN6035	XN60370	XN6050	XN6070	XNE980	XNE990	XNE10000
	SNGA 120402	0.2	2.4	12.70	4.76	5.16	2
	120404	0.4	2.4	12.70	4.76	5.16	2	●	●	●	●	●	●	●	●	●	●	●
	120408	0.8	2.4	12.70	4.76	5.16	2	●	●	●	●	●	●	●	●	●	●	●
	120412	1.2	2.4	12.70	4.76	5.16	2	●	●	●	●	●	●	●	●	●	●	●
	120416	1.6	2.4	12.70	4.76	5.16	2
	120420	2.0	2.4	12.70	4.76	5.16	2
	120424	2.4	2.4	12.70	4.76	5.16	2
	SNGA 120402	0.2	2.4	12.70	4.76	5.16	4
	120404	0.4	2.4	12.70	4.76	5.16	4	●	●	●	●	●	●	●	●	●	●	●
	120408	0.8	2.4	12.70	4.76	5.16	4	●	●	●	●	●	●	●	●	●	●	●
	120412	1.2	2.4	12.70	4.76	5.16	4	●	●	●	●	●	●	●	●	●	●	●
	120416	1.6	2.4	12.70	4.76	5.16	4
	120420	2.0	2.4	12.70	4.76	5.16	4
	120424	2.4	2.4	12.70	4.76	5.16	4
	SNGA 120402	0.2	2.4	12.70	4.76	5.16	8
	120404	0.4	2.4	12.70	4.76	5.16	8	●	●	●	●	●	●	●	●	●	●	●
	120408	0.8	2.4	12.70	4.76	5.16	8	●	●	●	●	●	●	●	●	●	●	●
	120412	1.2	2.4	12.70	4.76	5.16	8	●	●	●	●	●	●	●	●	●	●	●
	120416	1.6	2.4	12.70	4.76	5.16	8
	120420	2.0	2.4	12.70	4.76	5.16	8
	120424	2.4	2.4	12.70	4.76	5.16	8
★For details on recommended materials and cutting conditions, see pages 48–49.								●Indicates standard stock: 1-pack or 10-pack

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7-Day Lead Time

Standard PCD/PCBN inserts shipped within 3-7 days.

Japanese Tech Standard

Adopting advanced Japanese sintering technology for stability.

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