Tooling for the fabrication of composite hollow crown-stiffened

Details Tooling for the fabrication of composite hollow crown-stiffened Tooling for the fabrication of composite hollow crown-stiffened

1994-10-04

1997-04-22

Dixon, Merrick

Plastic article or earthenware shaping or treating: apparatus

Preform assembly means and means for bonding of plural...

Reshaping means utilizing fluid pressure directly contacting...

425503, 425500, 425111, 425112, 425123, 425383, 428902, B28B 2136

Patent

active

056227337

ABSTRACT:
A process for forming composite hollow crown stiffened skins and panels in which a first layer or skin is placed on a forming surface of a female mold and, after forming a plurality of U-shaped stiffener elements in the first skin, a second skin is placed over the first skin, whereupon the resulting assembly is prepared for autoclave curing. The stiffener elements are formed by pressing the first skin into U-shaped depressions in the female mold surface and inserting a hollow, expandable rubber mandrel into each of the depressions on top of the first skin. Valve stems in the mandrels enable maintaining the pressure inside at atmospheric pressure. The mandrels are maintained in their "pressurized" state during subsequent formation and autoclave curing steps.

REFERENCES:
patent: 4086378 (1978-04-01), Kam et al.
patent: 4908254 (1990-03-01), Fisher et al.
patent: 5015168 (1991-05-01), Boime et al.
patent: 5242523 (1993-09-01), Willden et al.

Affiliated with

Also associated with

Rating

Tooling for the fabrication of composite hollow crown-stiffened does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tooling for the fabrication of composite hollow crown-stiffened , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tooling for the fabrication of composite hollow crown-stiffened will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-340030