Diamond cutting tool applications

Natural diamond cutting tools are mainly used for ultra precision mirror processing of precious non-ferrous metals such as copper and copper alloys, as well as precious metals such as gold, silver, and rhodium, as well as special parts such as recording camera disks, optical flat mirrors, multi sided mirrors, and quadratic curved mirrors. But its crystal anisotropy makes cutting tools expensive. The performance of PCD depends on the content of diamond grains and cobalt, and the tool life is 10-500 times that of hard alloy (WC matrix) tools. Mainly used for turning various non-ferrous metals such as aluminum, copper, magnesium and their alloys, hard alloys, highly wear-resistant fiber plasticizers, metal matrix composites, wood and other non-metallic materials. The cutting speed, feed rate, and cutting depth during cutting depend on the material and hardness of the workpiece. The performance and application of artificial polycrystalline diamond composite (PDC) are similar to PCD cutting tools, mainly used in cutting processing of non-ferrous metals, hard alloys, ceramics, non-metallic materials (plastics, hard rubber, carbon rods, wood, cement products, etc.), composite materials, etc., gradually replacing hard alloy cutting tools. Due to the presence of residual bonding metal and graphite between diamond particles, where the bonding metal is distributed in a cohesive or vein like manner, the wear resistance and lifespan of the cutting tool will be reduced. In addition, there is residual solvent metal, which comes into direct contact with the diamond surface. Reducing the antioxidant capacity of PDC and the heat resistance temperature of the cutting tool results in unstable cutting performance of the tool. The preparation process of diamond thick film cutting tools is complex due to the high interfacial energy between diamond and low melting point metals and their alloys. Diamond is difficult to infiltrate by ordinary low melting point solder alloys. The weldability is extremely poor, making it difficult to produce complex geometric cutting tools, so TDF welding tools cannot be applied in high-speed milling. Diamond coated cutting tools can be applied to high-speed machining because, in addition to their excellent mechanical properties, diamond coated cutting tools can be used to prepare milling cutters of any complex shape for high-speed machining such as aluminum titanium alloy aerospace materials and difficult to machine non-metallic materials such as graphite electrodes.

Diamond Cutting Tools Co., Ltd. will first mention that diamond cutting tools have advantages such as extremely high hardness and wear resistance, low friction coefficient, high elastic modulus, high thermal conductivity, low coefficient of thermal expansion, and low affinity with non-ferrous metals. It can be used for precision machining of non-metallic hard and brittle materials such as graphite, high wear-resistant materials, composite materials, high silicon aluminum alloys, and other ductile non-ferrous metal materials. There are various types of diamond cutting tools, with significant differences in performance. There are significant differences in the structure, preparation methods, and application fields of different types of diamond cutting tools.

Natural diamond cutting tools are mainly used for ultra precision mirror processing of precious non-ferrous metals such as copper and copper alloys, as well as precious metals such as gold, silver, and rhodium, as well as special parts such as recording camera disks, optical flat mirrors, multi sided mirrors, and quadratic curved mirrors. But its crystal anisotropy makes cutting tools expensive. The performance of PCD depends on the content of diamond grains and cobalt, and the tool life is 10-500 times that of hard alloy (WC matrix) tools. Mainly used for turning various non-ferrous metals such as aluminum, copper, magnesium and their alloys, hard alloys, highly wear-resistant fiber plasticizers, metal matrix composites, wood and other non-metallic materials. The cutting speed, feed rate, and cutting depth during cutting depend on the material and hardness of the workpiece. The performance and application of artificial polycrystalline diamond composite (PDC) are similar to PCD cutting tools, mainly used in cutting processing of non-ferrous metals, hard alloys, ceramics, non-metallic materials (plastics, hard rubber, carbon rods, wood, cement products, etc.), composite materials, etc., gradually replacing hard alloy cutting tools. Due to the presence of residual bonding metal and graphite between diamond particles, where the bonding metal is distributed in a cohesive or vein like manner, the wear resistance and lifespan of the cutting tool will be reduced. In addition, there is residual solvent metal, which comes into direct contact with the diamond surface. Reducing the antioxidant capacity of PDC and the heat resistance temperature of the cutting tool results in unstable cutting performance of the tool. The preparation process of diamond thick film cutting tools is complex due to the high interfacial energy between diamond and low melting point metals and their alloys. Diamond is difficult to infiltrate by ordinary low melting point solder alloys. The weldability is extremely poor, making it difficult to produce complex geometric cutting tools, so TDF welding tools cannot be applied in high-speed milling. Diamond coated cutting tools can be applied to high-speed machining because, in addition to their excellent mechanical properties, diamond coated cutting tools can be used to prepare milling cutters of any complex shape for high-speed machining such as aluminum titanium alloy aerospace materials and difficult to machine non-metallic materials such as graphite electrodes.