Method of making a fluted core radome

Details Method of making a fluted core radome Method of making a fluted core radome

1984-02-29

1986-11-04

Woo, Jay H.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156245, 156285, 156382, 264292, 264313, 264320, 264500, 343909, 425396, 425403, 4273898, B31F 100

Patent

active

046208909

ABSTRACT:
In a method of making a fluted core radome from resin impregnated glass cloth, an outer skin, a fluted core, an inner skin, an edge band and a drain cap are individually fabricated from plies of resin impregnated glass cloth which are laid up on a mold and then subjected to pressure using a vacuum bag and to resin curing heat using an autoclave. The fluted core is formed on a mold having recesses in the surface thereof by placing silicone rubber mandrels within the recesses and on top of the plies of glass cloth, the mandrels tending to expand in response to the application of heat thereto and at the same time tending to contract in response to the application of pressure thereto so that an equilibrium is reached which provides a tight fit of the glass plies over the mold and a relatively even flow of resin within the glass cloth. Assembly of the radome is accomplished by locating the outer skin within a female mold and thereafter bonding the core to the outer skin, the edge band to the outer skin, the drain cap to the core and the core to the inner skin in separate steps utilizing the application of adhesive followed by the application of pressure using a vacuum bag.

REFERENCES:
patent: 2755216 (1956-07-01), Lemons
patent: 3795559 (1974-03-01), Horn et al.
patent: 3871001 (1975-03-01), Myers
"Law-Pressure Laminates for Aircraft", Dec. 1951, pp. 415-420, British Plastics, vol. 24.

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