Diamond is a kind of mineral composed of carbon element, which is a relatively hard material naturally existing in nature. The tool made of this material has the advantages of extremely high hardness and wear resistance, low friction coefficient, high elastic modulus, high thermal conductivity, low thermal expansion coefficient, and low affinity with non-ferrous metals. However, the structure, preparation method and application field of this kind of diamond tool are quite different, So there is also wear. Let's talk with you today: what are the causes of diamond tool wear? What materials are suitable for diamond cutting tools?
What are the causes of diamond tool wear?
1. When the temperature of the diamond tool increases continuously during cutting, when it reaches the thermochemical reaction temperature, a new modified layer will be formed on the surface of the tool, which is the reason for the wear of some diamond tools.
2. Of course, there are also some diamond tools. When cutting, the C atoms of the diamond crystal get enough energy and escape from the lattice, which gradually forms the wear of the lattice layer, thus leading to the wear of the diamond tools.
3. When the diamond tool cuts the non-ferrous metal, the atoms of the diamond crystal and the metal lattice of the workpiece permeate each other, resulting in the dissolution of the diamond. When cutting different materials, diamond tools have different dissolution rates. The greater the dissolution rate, the faster the wear of diamond tools.
What materials are suitable for diamond cutting tools?
The materials processed by diamond tools can be roughly divided into non-ferrous metal materials, non-metallic materials and composite materials. The following is a detailed breakdown of the materials:
1. Non ferrous metal materials: copper and copper alloy, silicon aluminum alloy, aluminum and aluminum alloy, lead alloy, Babbitt alloy, zinc alloy, etc.
2. Non metallic materials: carbon fiber reinforced plastics, alumina, silicon carbide, polyurethane, plexiglass, graphite, sintered ceramics, bakelite, ceramics, epoxy resin, glass, glass ceramics, soft rubber and nylon products.
3. Composite materials: asbestos, epoxy glass fiber, carbon filler, nylon filler, phenolic filler, polyvinyl chloride filler, silicic filler, glass fiber reinforced plastic.
