GRINDING WHEEL Russian patent published in 2015 - IPC B24D5/14 B24D3/02 

FIELD: process engineering.

SUBSTANCE: invention relates to production of tools and can be used for making of grinding wheels for centreless grinding, circular grinding and internal grinding in single pass. Grinding wheel comprises metal body with working part made of diamond-bearing material applied thereon and including organic or metal binder and diamond grains. Working part (2/3-3/4)B-long section contains diamond grains of hardness increasing in generatrix length and is intended for cutting in the workpiece. Working part (1/3-1/4)B-long section contains diamond grains of equal hardness and serves for finishing. Relationship is given to define hardness of diamond grains at section with increasing hardness.

EFFECT: uniform wear, regular sizes, geometric accuracy, longer life.

1 ex, 2 tbl, 2 dwg