METHOD OF MANUFACTURING A SOLID RING DRILL FOR A CORE DRILL BIT Russian patent published in 2018 - IPC B23P15/28 B23D65/00 B28D1/14 

FIELD: hand tools.

SUBSTANCE: invention relates to manufacture of cutting tools and can be used in manufacture of a solid ring drill for a core drill bit. By sequentially applying the powder layers of a powder mixture and diamond layers with diamond particles disposed in the insertion template, between the lower and upper sides in the forming direction, at least two preforms are formed layer by layer. Preforms under the influence of pressure are transformed into annular segments, ring-shaped assembly of ring segments is created and they are sintered when exposed to temperature in a solid ring drill.

EFFECT: reliability of insertion of diamonds and the quality of processing by drills are ensured.

12 cl, 5 dwg