Nanometer and superfine structure cemented carbide will become a new direction of technology development in the future

Sweden SECO (SECO) company after the launch of TP1000, TP2000, TP3000 three high-performance ISO-P class hard alloy coating brand, the new launch of TP2500 universal ISO-P class hard alloy coating brand, known as the "new industry standard", It is a new hard alloy coating brand based on Sanaka's new generation of Triple-Zero matrix material, using the coating technology known as DurAtomic. The a-Al2O3 of the DurAtomic coating is grown from atoms and has higher wear resistance and toughness than the a-Al2O3 generated by the usual CVD coating. TP2500 is designed to be the S-selected grade of ordinary steel parts turning (ISOP15 ~ P30), and can also be used as a supplementary grade of ISOM20 and ISOK30. According to the technical personnel of Shandao Company, the new TP2500 blade can improve the processing efficiency by more than 50% and improve the tool life by more than 300%.

BOEHLERIT (LMT-BOEHLERIT), a German blue metal processing technology group, has developed the technology of "yellow alumina composite coating" by using the medium temperature chemical coating technology. Combined with the newly developed Durotec tooth transition layer technology, the yellow alumina coating and transition layer have excellent adhesion and good heat dissipation at the same time. And launched the SteeltecLC215K and LC225K series blade brand. The SteeltecLC215K can reach a cutting speed of more than 300m/min when cutting steel, and the blade life is 30% higher than other existing blades. The SteeltecLC225K further improves the toughness of the blade on the basis of LC215K, so that the service life of the blade is extended by 30% on the original basis.

Nanocoating technology is a rapidly developing new coating technology. The grain size of coating materials is generally less than 100nm, and it has good machinability. This exhibition, many domestic and foreign companies have nano structure coating new brand launch. Sumitomo Denko Carbide's Super ZX coatings (ACP200, ACP300, ACK300 and AC530U) use a total of 1,000 overlapping layers of ultra-thin TiAlN and AlCrN nanoscale coatings, each of which is about 10 nanometers thick. The hardness and oxidation resistance of the coating surface are greatly improved. Compared with the traditional TiAlN coating, the hardness of the super ZX coating is increased by 40%, and the initial oxidation temperature is increased by 200℃, thus increasing the tool processing efficiency by 1.5 times. Under the same cutting conditions, the tool life is increased by 2 times. Japan's Hitachi Corporation also introduced the new nanostructure coating brand, the company's new nano coating ATH, ACS series brand, compared with the usual TiAlN(PVD) coating brand, has higher hardness and oxidation resistance, the oxidation resistance temperature of 1100℃, microhardness of 3600HV, Suitable for high speed dry cutting from pre - hardened steel to hardened steel. Nano-structured nc-TiAlN coatings (YBG102, YBG202, YBG302 and YBG203), newly launched by Zhuzhou Diamond Cutting Tools Co., LTD., are coated with 2 ~ 4μm nano-TialN on the surface of ultrafine grain carbide matrix. This series of brands covers the turning and milling of most materials such as steel, stainless steel, cast iron, heat-resistant alloy, superalloy, titanium alloy, and has a wide range of adaptability.