| 摘要 |
Aggregate abrasive grains (10) for use in the production of abrading or cutting tools are formed. Each aggregate abrasive grain comprises an abrasive core particle and a plurality of abrasive peripheral particles disposed around the core particle. The abrasive particles intended as the core particles (12) are provided with a coating containing a binder. These binder-coated core particles (26) are then surrounded with those particles that are intended to become the peripheral particles (28) of the aggregate grains. The binder-coated core particles surrounded with the peripheral particles are heated up to a temperature at which the binder softens so that the peripheral particles are caused to attach to the core particles. |
