Stock material or miscellaneous articles – Structurally defined web or sheet – Including components having same physical characteristic in...
Patent
1996-02-14
1999-01-05
Turner, A. A.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including components having same physical characteristic in...
51307, 51309, 428323, 428332, 428697, 428698, 428699, 428701, 428702, 428378, 428379, 4282934, 4282937, C04B 3552
Patent
active
058559973
ABSTRACT:
A reinforced, laminated ceramic cutting tool has a core layer and at least two outer layers. The core layer and the outer layers, either alone or in combination, contain a reinforcement consisting of reinforcement particles, reinforcement whiskers or reinforcement platelets. When whiskers are used, the bulk of the whiskers are arranged so that a longitudinal dimension of each whisker is aligned substantially perpendicular to a flank face on the cutting tool. Likewise, when reinforcement platelets are used, the bulk of the platelets are oriented so that a basal plane of each platelet is in a plane substantially perpendicular to the flank face. Each outer layer has residual stresses in directions perpendicular to and parallel to the flank face, and each outer layer has the same thickness, composition and residual stresses as the other outer layer. Processes for making a laminated ceramic cutting tool, and products of those processes, are also disclosed.
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Monahan Thomas J.
The Penn State Research Foundation
Turner A. A.
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