Abstract: The invention relates to an improved grinding wheel for grinding eye glass edges. The grinding wheel comprises a base member and an abrasive coating of diamond and metal. The base member 3 consists substantially of plastic material and an annular member 2 of metallic material is provided between the base member 3 and the coating 1. The metallic material of the annular member 2 has a strength withstanding the forces occuring in sintering the coating to the annular member.
Type:
Grant
Filed:
April 25, 1997
Date of Patent:
August 31, 2004
Assignee:
Ernst Winter & Sohn Diamantwerkzeuge GmbH &
Co.
Abstract: Grinding tool including a basic body symmetric with respect to rotation and a grinding layer deposited on the periphery of said grinding tool. The grinding layer being composed of the grinding grains, bonding agent and occasionally filler and/or wear-changing additives. The outer radius of the annular grinding layer or the extension in feeding direction perpendicular to the axis of the basic body is different, with the physical properties and/or the volume contents of the components of the layer are different in axial direction such that an adaptation to the different grinding load continuously in axial direction is achieved.
Type:
Grant
Filed:
September 12, 1996
Date of Patent:
December 29, 1998
Assignee:
Ernst Winter & Sohn Diamantwerkzeuge GmbH & Co.
Abstract: A method for making a single cone disk, preferably a dressing wheel, comprising a metal base member having a main surface and head area coated by hard material grains so as to form a hard material grain layer fixed to said base member by metal bonding, in which method a pocket is formed in the back side of the head area of said base members while said metal bonded hard material grain layer is retained thereat, and thereafter the pocket is filled by hard material grains.
Type:
Grant
Filed:
November 3, 1995
Date of Patent:
November 5, 1996
Assignee:
Ernst Winter & Sohn Diamantwerkzeuge GmbH & Co.