Zhengzhou Berlt has crafted a series of PCBN cutting tools that are made to challenge the machining of high hardness materials. The tools are carefully designed to meet the machining needs of hardened steel, gray cast iron and other high hardness ferrous metals, and their outstanding performance has won wide recognition in the industry.
Zhengzhou Berlt's PCBN tools are capable of maintaining excellent performance in extreme high-temperature environments. They are able to withstand temperatures up to 1,000 degrees Celsius or even higher, while maintaining a constant high hardness of HV4000, a characteristic that is particularly important when working with materials that are difficult to machine. It is this high-temperature stability and hardness retention capability that has led to a significant increase in productivity.When it comes to cutting performance, Zhengzhou Berlt's PCBN tools undoubtedly have many advantages.
The hardness and wear resistance of Berlt's PCBN tools are first-class. Thanks to the high heat resistance of the PCBN material, even at temperatures as high as 1,000°C, the hardness of this tool far exceeds the performance of ceramics and carbide at room temperature. This means that it is able to maintain a stable cutting condition for a long time without the need for frequent changeovers, which greatly improves work efficiency.
The high thermal stability of Berlt's PCBN tools is also a highlight, as the crystal structure of PCBN material is similar to that of diamond, so it has a hardness and strength close to that of diamond. the micro-hardness of PCBN micro-powder is as high as HV8000-9000, and the hardness of the tool is stabilized at between HV3000-5000 after sintering. This high thermal stability ensures that the tool performs well at high temperatures and is fearless in harsh machining environments.
Berlt's PCBN tools also have excellent chemical stability. It is so chemically inert that it will not react with ferrous materials even at temperatures as high as 1200-1300°C, and with carbon as high as 2000°C. It is also chemically stable to acids and alkalis in both neutral and reducing gas environments. Whether in a neutral or reducing gas environment, it is stable to acids and alkalis, effectively reducing the phenomenon of material bonding and diffusion, thus extending the service life of the tool.
The thermal conductivity of Berlt's PCBN tools is also extremely excellent. Among all cutting tool materials, its thermal conductivity is second only to diamond, and its thermal conductivity is as much as 20 times higher than that of cemented carbide. This characteristic helps to dissipate heat quickly, reducing the temperature during the cutting process and thus improving machining accuracy.
The low coefficient of friction is also one of the major advantages of Berlt's PCBN tools. Its friction coefficient with steel is only 0.1-0.3, much lower than that of cemented carbide and steel, which is 0.4-0.6. With the increase of cutting speed, the coefficient of friction will be further reduced, which not only reduces the energy consumption, but also lessens the wear of the tool, and thus improves the machining efficiency.
Zhengzhou Berlt's PCBN tools provide an efficient and stable solution for machining high hardness ferrous metals with their unique material properties and excellent cutting performance.
