Segmented flexible barrel lay-up mandrel

Details Segmented flexible barrel lay-up mandrel Segmented flexible barrel lay-up mandrel

2007-01-23

2007-01-23

Luu, Teri Pham (Department: 3644)

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

C264S313000, C264S334000, C425S392000, C425S441000

Reexamination Certificate

active

10904841

ABSTRACT:
An aircraft barrel lay-up assembly is provided comprising a barrel mandrel assembly having a contiguous outer barrel lay-up surface. A minor barrel outer surface element is movable between a minor barrel engaged position and a minor barrel disengaged position and forms a minority portion of the contiguous outer barrel lay-up surface when in the engaged position. A major barrel outer surface element is movable between a major barrel engaged position and a major barrel disengaged position. The major barrel outer surface has a first major barrel surface end and a second major barrel surface end moving together to reduce an effective major barrel outer surface circumference when in the major barrel disengaged position. A composite ply assembly is formed around the barrel mandrel circumference and cured while coincident to form a composite barrel element. The composite barrel element removable from said barrel mandrel assembly by way of moving major barrel outer surface element into the major barrel disengaged position such that a sliding gap is formed.

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