Coefficient of thermal expansion control structure

Details Coefficient of thermal expansion control structure Coefficient of thermal expansion control structure

2011-06-28

2011-06-28

Gupta, Yogendra N (Department: 1744)

Plastic and nonmetallic article shaping or treating: processes

Repairing or restoring consumer used articles for reuse

C264S036220, C264S487000

Reexamination Certificate

active

07968021

ABSTRACT:
The present invention is directed to the incorporation of a substructure into tooling for constructing composite structures in order to control thermal expansion of the tooling during aerospace manufacturing processes. Substructure, such as headers and/or gussets is added to the tooling to constrain the growth of the laminate expansion and/or control the diametric growth of the tool during the curing cycle. The thickness of the face-sheet of the tooling also may be reduced in order to further reduce the effective coefficient of thermal expansion (CTE) of the tooling.

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International Search Report and Written Opinion issued for PCT/US2008/071030; Dated: Sep. 26, 2008; 10 Pages.
Chenson Dong, et al., “Dimension Variation Prediction for Composites with Finite Element Analysis and Regression Modeling,” Science Direct, Composites: Part A: applied science and manufacturing 35 (2004), pp. 735-746.

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