High pressure co-cure of lightweight core composite article utilizing a core having a plurality of protruding pins
First Claim
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1. A semi-rigid mold member, comprising:
- a first ply, comprising an elastomeric sheet rubber and a release film;
a second ply adjacent said first ply; and
a sieve member adjacent said first ply and said second ply, said sieve member adjacent said elastomeric sheet rubber opposite said release film.
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Abstract
The composite molding apparatus includes a rigid base member and a complementary semi-rigid mold member or “black bag” caul plate having a sieve member formed therein. The sieve member layer of the semi-rigid mold member engages pins which extend from the sandwich core to limit penetration into the semi-rigid mold member to a predetermined depth. The semi-rigid mold member is supported relative to the rigid mold member by the pins to provide uniform pressure transfer to the composite article during a high pressure co-cure molding process without crushing the sandwich core.
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Citations
25 Claims
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1. A semi-rigid mold member, comprising:
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a first ply, comprising an elastomeric sheet rubber and a release film;
a second ply adjacent said first ply; and
a sieve member adjacent said first ply and said second ply, said sieve member adjacent said elastomeric sheet rubber opposite said release film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 20, 21, 23)
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11. A composite molding apparatus, comprising:
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a rigid mold member; and
a semi-rigid mold member matable with said rigid mold member, said semi rigid mold member comprising a first ply located directly opposite said rigid mold member, said first ply compromising a sieve member, an elastomeric sheet rubber, and a release film, said release film and said sieve member located a adjacent said elastomeric sheet rubber, said release film facing said rigid mold member. - View Dependent Claims (12, 13, 14, 15, 16, 17, 19, 22, 24, 25)
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18. A semi-rigid mold member, comprising:
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a first ply;
a second ply adjacent said first ply; and
a sieve member adjacent said first ply and said second ply, said sieve member embedded in said first ply.
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Specification