Patent ID: 6537140
Filing Date: 2003-03-25
Classification: B24D

Abstract:
A process for making an abrasive tool consisting essentially of the steps of:(A) providing a stencil having a plurality of perforations of selected shape; (B) contacting a shaped metal preform, representing a tool body for the abrasive tool, which has been selected from the group consisting of spherical, conical or frustoconical metal preforms, with the stencil whereby the perforations define cavities adjacent a cutting surface on the abrasive tool; (C) providing a brazing paste including a metal braze composition and a binder component; (D) filling the cavities with brazing paste; (E) removing the stencil to form parcels of brazing paste on the cutting surface, each parcel being separated from neighboring parcels by paste-free channels; (F) depositing abrasive grains onto the parcels; and (G) thermally processing the abrasive tool to braze the abrasive grains to the cutting surface.