This Aerospace Recommended Practice (ARP) describes a manufacturing method for processing unidirectional graphite 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.
This specification covers molded or extruded bar, rod, and shapes produced from a polyamide-imide polymer filled with 30% carbon fiber. This is designated as Grade 5 material per AMS3670.
This specification covers an unfilled polyamide-imide plastic in the form of molded or extruded bar, rod, and shapes. This is designated as Grade 2 material per AMS3670.