Machines. Technologies. Materials.
Vol. 18 (2024), Issue 6, pg(s) 210-211

MATERIALS

Synthetic diamond grinding powders with increased abrasive ability for grinding tools

  • 1 Institute of Pulse Processes and Technologies of the National Academy of Sciences of Ukraine – Mykolaiv, Ukraine
  • 2 V.N. Bakul Institute for superhard materials of the National Academy of Sciences of Ukraine – Kyiv, Ukraine

Abstract

The results of a quantitative study of the influence of methods of chemical cleaning, pulse treatment with high-voltage electric discharges in a liquid, and flotation separation of synthetic diamond powder of the AS20 grade with a grain size of 100/80 on its abrasiveness are given. It has been established that the use of pulse treatment with high-voltage electric discharges in a liquid provides selective destruction of low-strength diamond particles, activation of the energy state of the surface, and an increase in abrasiveness. Changes in powder characteristics: homogeneity in strength by 1.3-1.9 times; decrease in the mass fraction of impurities by 2.8-7.8 times; guarantee an increase in abrasiveness up to 30-34% and contribute to the improvement of the physico-mechanical and physico-chemical characteristics of synthetic diamond powder

Keywords

References

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