DETERMINATION OF THICKNESS OF COATED OF METALIZED GRINDING POWDERS OF SYNTHETIC DIAMOND BASED ON EXTRAPOLATION-AFFINE 3D MODELS OF GRAIN

  • G. A. Petasiuk V. N. Bakul Institute for superhard materials of NAS of Ukraine
  • M. N. Safonova M. K. Ammosov Northeastern Federal University
  • Yu. V. Sirota V. N. Bakul Institute for superhard materials of NAS of Ukraine
  • O. U. Petasiuk V. N. Bakul Institute for superhard materials of NAS of Ukraine
Keywords: metallization, coating, mediated-analithic methods, 3D model of grain, external specific surface

Abstract

Methodological features of the mediated-analytical determination of the thickness of the coating of grains of metallized grinding powders of synthetic diamond are analyzed. The carried out researches have shown, that the most perfect are methods based on application of an external specific surface. For the first time it is proposed to use the extrapolation-affine 3D model of grain in this calculation scheme. The example of the grinding powder AC125 400/315 proved the advantage of this 3D model in comparison with the 3D model in the form of a ball. The use of the extrapolation-affine 3D model of the grain makes it possible to find the thickness of the coating of grains of metallized diamond powders without the traditional assumption of the spherical shape of their grains and with less error. The proposed new method can be used for powders of other abrasive materials

Published
2018-04-17
Issue
Vol 21 (2018): Rock Destruction and Metal-Working Tools – Techniques and Technology of the Tool Production and Applications
Section
Instrumental, structural and functional materials based on diamond and cubic bor