THEORETICAL REASONING FOR EFFICIENT USE OF MICRO POWDERS IN DIAMOND WHEELS ON METALLIC BONDS
DOI:
https://doi.org/10.20998/2078-7405.2020.92.01Keywords:
diamond grinding, polycrystalline superhard materials, grinding wheel, stress-strain, specific consumption, metal coating, diamond grain concentration.Abstract
The article presents theoretical researches of improving the manufacturing process and the subsequent using of grinding wheels from diamond micro powders of diamond on current-carrying bonds, which allow to reduce the specific consumption of synthetic diamonds in the finishing operations of processing polycrystalline superhard materials It is proposed to use diamond grains with a metal coating in an abrasive tool. 3D analysis of the stress-strain state “diamond grain-coating-bond” system showed ways to reduce the probability of destruction of diamond grains during sintering of the diamond-carrying layer by changing the thickness of the coating, the elastic modulus of its material and other parameters. The calculated low values of the concentration of coated diamond grains provide a significant reduction in their specific consumption in the processing of polycrystalline superhard materials.References
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