METHOD OF MAKING CUTTING CERAMIC PLATES FROM NITRIDE CERAMICS Russian patent published in 2013 - IPC C23C14/32 B24B1/00 C04B35/00 

FIELD: machine building.

SUBSTANCE: proposed method comprises making ceramic plate work pieces and their grinding. Prior to grinding, said plates are arranged between grinding wheels to allow their differential rotation relative to the latter, their relative rpm being defined by the following relationship: N_L=n₁/n₂, where n₁ is ceramic plate rpm, min^-1, n₂ is grinding wheel rpm, min^-1. Aster grinding, wear-resistant coat is applied on functional surface of the plate by vacuum-plasma deposition of the following composition in wt %: titanium - 40, niobium - 40, aluminium - 20.

EFFECT: higher bending strength and crack-resistance, higher reliability.

2 dwg