Polycrystalline cubic boron nitride (PCBN) composite plates are high-performance cutting materials known for their exceptional hardness, outstanding wear resistance, and excellent thermal conductivity. These properties make PCBN ideal for precision machining of difficult materials like ceramics, hardened steels, and hard alloys. Compared to traditional cutting tools, PCBN tools offer higher cutting precision and efficiency, significantly enhancing productivity and becoming an indispensable asset in the manufacturing industry.
PCBN composite plates are constructed with a robust hard alloy substrate, layered with cubic boron nitride (CBN) micro-powder, and sintered under high temperature and pressure. CBN boasts a hardness second only to diamond, with thermal stability and chemical resistance that far exceed those of diamond, making it a formidable competitor in the machining of iron-based metals. This positions PCBN as a critical choice in both abrasive and cutting tool applications.
The unique design of PCBN composite plates not only provides exceptional hardness and thermal stability but also enhances toughness through the hard alloy substrate, facilitating further processing. Their application range is extensive, covering advanced CNC machines, fully automated machine tools, and high-speed automatic lines. PCBN is widely utilized in the machining of hardened steel, chilled cast iron, tool steels, and hardened forged parts, gradually replacing traditional hard alloys and ceramic tools and emerging as the mainstream trend in the cutting tool industry.
1. Current Development Status of PCBN Composite Plates
The development of PCBN tools is more advanced in regions such as Europe, North America, and Japan, where a mature technical system has been established. The products are increasingly characterized by diversification, quality optimization, and uniform performance. PCBN composite plates from overseas are commonly stable at diameters above 50mm, with Element Six offering products with diameters of 57mm and 101.6mm of pure CBN sintered bodies (AMB90), maintaining a wear and thermal performance deviation within 30% for exceptional consistency. DI and Sumitomo provide specifications of 50.8mm, 58mm, and 64mm, respectively.
Boreas has successfully developed 64mm diameter PCBN composite plates after years of research, with particle sizes ranging from 2μm to 15μm. We offer over 20 different categories of customized solutions to meet specific machining needs. By choosing Boreas' PCBN composite plates, you will experience a significant boost in both cutting efficiency and quality!
