Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1986-05-15
1988-01-26
Silbaugh, Jan H.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264314, 264505, 264512, 264516, 156156, B29C 4310, B29C 4320
Patent
active
047215933
ABSTRACT:
A process using molds for curing a composite skin-stiffeners assembly from fiber material impregnated with a resin. This process allows molding and co-curing of single-skin type panels with integral stiffeners, allows stiffeners of variable heights, thicknesses and widths, allows substantial freedom in the layout of stiffeners, and allows even integral cross-stiffeners. Bonding and mechanical fasteners are also dispensed with. This process is further characterized by providing a stiffener forming mold part having a corrugated face, laying composite material over the ridges defined by the corrugated face to form stiffeners of open cross-sectional shape and interspacing gaps between them in bonding contact with skin forming material, and co-curing of the skin-stiffeners assembly.
REFERENCES:
patent: 2451131 (1948-10-01), Vidal et al.
patent: 3135640 (1964-06-01), Kepka et al.
patent: 3270111 (1966-08-01), Haldemann
patent: 3493240 (1970-02-01), Jenks
patent: 3641230 (1972-02-01), Jenks
patent: 3764431 (1973-10-01), Kramer et al.
Canadair Inc.
Durkin, II J. F.
Silbaugh Jan H.
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