FIELD: technological processes.
SUBSTANCE: invention relates to abrasive processing and can be used in making articles with abrasive coating intended for finishing and grinding articles surfaces. Article has a coating with apertures, arranged in compliance with controlled non-uniform distribution and forming spirals, selected from a group, comprising an Archimedean spiral, Euler spiral, Fermat's spiral, hyperbolic spiral, Fibonacci spiral, logarithmic spiral, golden spiral, or combinations thereof.
EFFECT: increased grinding efficiency and surface characteristics of processed parts.
17 cl, 59 dwg, 11 tbl, 10 ex
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