Processing of synthetic diamonds is accompanied by low productivity and high values of relative consumption of diamond wheels. The coefficient of use of diamond grains in these processes does not exceed 5-10%. Using synthetic diamonds as a blade tool, requires sharpening and refinement. This study proposes to use ultra-high-speed machining modes and the same diamond grinding wheel at all stages of tool shaping. At the first stage, i.e. at high speeds, a rough productive sharpening of diamond blade tool is made with a wheel on an iron-based binder. At the second stage processing speed is reduced, as a result grains cease to self-sharpen and to wear out. When the iron binder comes into contact with the sharpened diamond, the speed must be increased, so that the temperature in the contact zone of the binder with the rough surface of the cutter, increases. Due to diffusion wear, from the surface of the diamond, the height of the roughness micro-hills decreases. In other words, the process of high-quality thermally activated refinement of the working surface of the diamond cutter starts to be implemented.

Simulation of the effect of sintering on the integrity of diamond grains in grinding wheelsABSTRACT. This paper focuses on theoretical studies of the process of manufacturing diamond abrasive tools and of diamond grinding through 3D modelling of the stress-strain state of the components of the diamond layer of the grinding wheel. Modelling of the sintering process of diamond grinding wheels with metal-based binders is used in order to determine the conditions needed to maintain the integrity of the diamond grains in the diamond layer.

Prevention of manufacturing defects of diamond composite materials by simulating the process at the micro level ABSTRACT. The efficiency of diamond abrasive tools is degraded for several reasons, one of the most significant being the destruction of most of the grains during the process of the manufacture of the tools. This paper presents a methodology for complex research into the destructive stresses in diamond composite tools during manufacture. Analysis of the stress-strain state of the diamond layer was carried out using the finite-element method in applications such as Ansys, CosmosWorks and LS-Dyna. Nanotechnology Perceptions 8 (2012) 171-180Nonsubscribers: purchase individual article

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