Abrasive tool making process – material – or composition – Laminating
Patent
1997-05-23
1999-04-06
Jones, Deborah
Abrasive tool making process, material, or composition
Laminating
51295, B24D 1100
Patent
active
058912045
ABSTRACT:
Apparatus and methods for the manufacture of improved abrasive tools and the like which include apparatus and a method for the creation of a structurally viable matrix having a pattern of abrasive elements which can be shaped, cut and positioned for permanent disposition on a rigid tool body. The apparatus includes a transversely magnetized base surface with magnetic protrusions to provide a mosaic-like surface. A release layer is placed over the protrusions and magnetizable abrasive particles are diffused onto the surface of the release mechanism. The particles orient themselves magnetically to form generally conic stacks, each having a stack axis and a distal working portion. The stacks define a working surface which is then coated with acrylic paint to provide structural integrity. Prior to solidification of the paint the cones may be shaped, for example, by passing a magnet near them. After the cones have been shaped and the paint dried, a braze paste is applied to encapsulate the cones and form a flexible support web between the cones. The entire matrix may then be removed from the base surface. The release mechanism may be removed and the matrix cut and formed to any desired shape and multiple matrices secured to a rigid structure in various patterns using an acrylic adhesive. At this point, the matrix and structure may be heated to braze temperature to form an assembly featuring a high-friction surface having diverse characteristics used as an abrasive tool.
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