Method of producing a frame made of a composite material, especi

Details Method of producing a frame made of a composite material, especi Method of producing a frame made of a composite material, especi

1991-03-18

1992-12-15

Hoag, Willard E.

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

156173, 156245, 264314, 264318, 264325, B29C 4320, B29C 4132, B29C 4142

Patent

active

051715104

ABSTRACT:
The present invention pertains to a method for producing a frame for a working hull, specifically an aircraft fuselage wherein at least a part of the frame is in the form of a monolithic structure. The method includes the steps of draping unidirectional and multidirectional fabrics impregnated with resin on a form, placing inflatable bladders between the form and a counter form, closing a mold on the form, inflatable bladders and a counter-form, inflating the bladders to compress the fabrics and heat-set the resin impregnating the fabrics. Thereafter, the monolithic structure is removed from the mold.

REFERENCES:
patent: 2170188 (1939-08-01), Cobi
patent: 2485898 (1949-10-01), Matthews et al.
patent: 2949658 (1960-08-01), Conn
patent: 3101519 (1963-08-01), Smith
patent: 4565595 (1986-01-01), Whitener

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