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Standard

Adhesive, Film Form Metallic Structural Sandwich Construction

2022-10-04
CURRENT
AMSA25463
This specification covers the requirements for adhesives in film form for bonding metal facings to metal cores and to metal components of sandwich panels which are intended for use in primary and secondary structural airframe parts that may be exposed to temperatures up to 500°F (260°C).
Standard

Application of Direct Pressure to Resin in Curing of Epoxy and Addition Type Polyimides

2022-06-07
CURRENT
ARP1927
This recommended practice describes the materials, related equipment, and particular processing techniques utilized in process science curing of composite hardware where pressure is imparted specifically to the resin of curing composites. Included as Appendix "A" to this ARP is a discussion of the particular techniques developed for a processing science philosophy which has consistently produced void and porosity-free, large area, thick composite structures.
Standard

Automated Manufacture of Continuous Multi-Ply Carbon Fiber/Epoxy Resin Impregnated Broadgoods

2022-06-05
CURRENT
ARP1674A
This document describes a manufacturing method for processing unidirectional carbon fiber/epoxy resin impregnated sheet and tape into multi-ply broadgoods and tape produced on an automated cross-plying machine. Broadgoods or tape of two or more ply configurations may be processed, where ply orientations of 0°, 45°, 90°, and 135° (as examples) may be automatically layed in a programmed sequence. In all configurations, the 0° ply direction is parallel to the length of the broadgoods roll or sheet, or tape.
Standard

CLOTH, TYPE "E" GLASS, "B" STAGE POLYIMIDE-RESIN-IMPREGNATED 181 Style Fabric, Low-Flow Addition-Cure Resin For Press Cure at 40 - 100 psi (275 - 690 kPa) or Vacuum/Autoclave Processing

1985-04-01
HISTORICAL
AMS3845/1A
This specification covers one type of glass cloth impregnated with a heat-reactive, addition-cure, thermosetting, polyimide-resin system, the resin to be supplied in a "B" stage condition for low flow and press cure at 40 - 100 psi (275 - 690 kPa) or vacuum/autoclave processing.
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