Method for id sizing of filament reinforced annular objects

Details Method for id sizing of filament reinforced annular objects Method for id sizing of filament reinforced annular objects

1990-03-26

1991-12-24

Roy, Upendra

Metal treatment

Compositions

Heat treating

294191, 164 46, 148127, 148128, 228190, 22826312, B32B 1514, B22F 700

Patent

active

050749234

ABSTRACT:
A method of controlling the internal dimensions of a filament reinforced ring structure is taught. The method involves providing the ring structure with an internal dimension which is slightly smaller than the specification of the final dimension which is sought. The ring structure is mounted over a solid mandrel having a coefficient of thermal expansion which is greater than that of the ring structure. The solid mandrel is mounted within the ring structure and the combination is heated to a temperature at which the outer dimension of the mandrel is greater than that of the internal dimension of the ring structure. The result is to enlarge the internal dimensions of the ring structure to a value conforming very closely to a specification for the ring structure.

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patent: 4838337 (1989-06-01), Siemers
patent: 4896815 (1990-01-01), Rosenthal et al.
patent: 4906306 (1990-03-01), Araki et al.

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