Application of diamond tools
2015/9/3 13:43:09
Application of diamond tools
Natural diamond cutting tool is mainly used for copper and copper alloy, gold and silver, rhodium valuable non-ferrous metal, and is a special part of the ultra precision surface processing, such as recording camera disk, optical flat mirror, a polygon mirror and second curved mirror etc.. But its crystal anisotropy, the tool is expensive.
The performance of PCD depends on the content of diamond grains and cobalt, and the tool life is 10 ~ 500 times of cemented carbide (WC matrix). It is mainly used in turning process of nonferrous metals such as aluminum, copper, magnesium and its alloy, hard alloy, high abrasion resistance, metal matrix composites, wood, etc.. Cutting speed, feed rate, and depth of cutting are determined by the material and the hardness of the workpiece. Artificial Polycrystalline PDC (PDC) properties and application of close to PCD cutting tool, mainly used in the machining of non-ferrous metal, hard alloy, ceramic, non metal materials (plastic, hard rubber, carbon, wood, cement products, etc.), composite materials, gradually replace the hard alloy tools. The diamond particles have some residual bond metal and graphite, the adhesive metal poly node state or was veined distribution will reduce tool wear and life.
In addition there are metallic solvent residues, direct contact with the surface of diamond metal solvent. Reduce (PDC) the antioxidant capacity and cutting tool heat resistance, so the cutting performance is not stable enough. Diamond thick film cutting tool is a complex process, which has a very high interfacial energy due to the low melting point and low melting point. Diamond is very difficult to be generally low melting point solder alloy. It is difficult to produce complex geometry tools, so the TDF welding tool can't be used in high speed milling. Diamond coated tools can be used in high speed machining. Because of the excellent mechanical properties of diamond coated tools, the diamond coating process can be used to produce arbitrarily complex shaped milling cutter for high speed machining, such as aluminum titanium alloy aviation materials and hard machining non metallic materials such as graphite electrode.