should be selected grinding and profile grinding wheel hard to maintain the required shape precision grinding.
2013年7月30日星期二
Application of diamond tools
Natural diamond tools currently used mainly for copper and copper alloys and gold, silver, rhodium and other precious metals, and special parts of the ultra-precision
mirror processing, such as a disk recorder, an optical mirror, a polygon mirror and the second curved mirror and so on. But its crystalline anisotropy, the tool
Expensive. PCD performance depends on the content of diamond grains and cobalt, cemented carbide tool life (WC substrate) of the tool 10 to 500 times. Turning is
mainly used for various non-ferrous such as aluminum, copper, magnesium and their alloys, tungsten carbide fibers and strong wear resistance
Plasticized materials, metal matrix composites, wood and other non-metallic materials. When cutting speed, feed rate and depth of cut depends on processing conditions
and the hardness of the workpiece material. synthetic diamond polycrystalline diamond compact (PDC) properties and applications close PCD tools, mainly
Used in non-ferrous metals, tungsten carbide, ceramics, non-metallic materials (plastic, hard rubber, carbon rod, wood, cement products, etc.), composite materials
cutting, gradual replacement carbide cutting tools . Because the diamond particles bonded to ask some residual metals and graphite,
Bonding metal to which the state or in the form coalesced vein-like distribution will reduce tool wear and life. In addition there is a metal residue solvent, solvent
metal in direct contact with the diamond surface. Lower (PDC) antioxidant capacity and tool heat resistance, it is not enough cutting tool
Stability. Thick Diamond Tool preparation process is complex, because of the low melting point metals and their alloys and diamond has a high interfacial energy
between. Diamond is difficult to be generally low melting point solder alloy infiltration. Weldability poor, difficult to produce complex geometry tool, so TDF
Welding tool can not be used in high-speed milling. Diamond-coated tools can be applied to high-speed machining, because in addition to diamond coated tools have
excellent mechanical properties, diamond coating process can be prepared any complex shape cutters for high speed machining, such as aluminum
Difficult to machine titanium aerospace materials and non-metallic materials such as graphite electrodes.
订阅:
博文评论 (Atom)
没有评论:
发表评论