METHOD FOR MAKING AND JOINING COMPOSITE SANDWICH SHELL EDGE JOINT

摘要

A method for joining fittings to a composite sandwich shell edge includes laying up an inner facesheet and positioning a wrapped flute mandrel on top; applying a layer of adhesive on the inner facesheet and positioning spacer-supported fittings on top; applying adhesive over the co-bonded fittings and laying up an outer facesheet forming an assembly; curing the assembly under heat and pressure; removing the fittings by first collapsing the spacers and removing the flute mandrel; placing an adhesive layer on the fittings with collapsible spacers inserted therein; reinserting the fittings between the inner and outer facesheets and effecting bonding and curing; and removing the spacers from the fittings by collapsing the spacers.

主权项

1. A method comprising :
forming an assembly of an inner facesheet, wrapped flute mandrels, spacer-supported fittings and an outer facesheet; curing the assembly under heat and pressure; removing the spacer-supported fittings and the flute mandrels; reinserting spacer-supported fittings between the inner and outer facesheets and effecting bonding and curing; and removing the spacers from said fittings.