(1) processing of non-ferrous materials processing difficult
Processing of copper, zinc, aluminum and other nonferrous metals and alloys, materials, easy adhesion tool, processing difficulties. The use of the the diamond low coefficient of friction, with the characteristics of the non-ferrous metal affinity small, diamond tools can effectively prevent metal bonding the tool. Further, since the diamond an elastic modulus, a small deformation of the blade portion of the cutting, the cutting of non-ferrous metal extrusion deformation is small, the cutting process can be completed in the small deformation, which can improve the quality of machined surface.
(2) difficult to machine processing of non-metallic materials
When processing difficult to contain a large number of high hardness particle processing of non-metallic materials, such as glass fiber reinforced plastic, fill the silicon material, rigid carbon fiber / epoxy composite material hard particles so that the tool wear serious with carbide tools is difficult processing, diamond cutting tools,cutting wheel, high hardness, wear resistance, high processing efficiency.
(3) The ultra-precision machining
With the advent of modern integrated technology, the machining precision direction quite high tool performance. Diamond small friction coefficient, low coefficient of thermal expansion, high thermal conductivity, can be cut very thin chips, chips easily outflow affinity with other substances, is not easy to produce BUE, heat a small, stone cutting wheel,high thermal conductivity, heat can be avoided the influence of the blade and the workpiece, and therefore the blade difficult to passivation, cutting deformation is small, the surface of the higher quality can be obtained.
2 diamond tool manufacturing method
Currently, the following four categories: film coated tools, thick-film diamond welding tool, diamond sintered body tool and single crystal diamond tool diamond processing methods.
1, when in use, you must first select the appropriate size bushings, the guide sleeve gun drill Ministry gap to keep 0.003mm - 0.008mm of machine gun drill spindle must have high axial and radial the rigidity of the guide sleeve and spindle have a high concentricity. During drilling,cutting disc, processing materials (especially castings) drilling position should not fracture, air vents and other impurities, otherwise it will cause chipping, or even turn around. Should be used to select the correct cutting parameters. Under normal circumstances, the cutting speed: V = 1.1-1.65 m / s, feed rate: s = 0.015-0.03 mm / rev, oil pressure: P = 2.5-6.0Mpa, flow rate: Q = 0.2-0.65 liters / sec.
2, gun drill cutting fluid used more meticulous, it directly affects the accuracy of the holes to be machined. Be sure to choose a dedicated gun oil drilling. General gun drill with a cutting fluid should have an extreme pressure additive, in order to ensure that the oil film is formed under high pressure, to prevent the generation of dry grinding. The viscosity of the cutting fluid and the borehole diameter, the smaller the diameter, the lower the viscosity. Sent gun drill cutting zone cutting oil compared with the pressure, flow, and high filtration precision and general machining. Flow rate should be increased with the increase of hole depth, to ensure that the cutting oil has a greater flow rate, to achieve the purpose of smooth chip evacuation.abrasive tools