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SAE ARP1674 Revision A, January 1, 1988
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Automated Manufacture of Continuous Multi-Ply Carbon Fiber/Epoxy Resin Impregnated Broadgoods
Includes all amendments and changes through Reaffirmation Notice , August 2014
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AIA/NAS Aerospace Standards
This document describes a manufacturing method for processing unidirectional carbon fiber/epoxy resin impregnated sheet and tape into multi-ply broadoods 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°, 9°, and 135° (as examples) may be automatically layed in programmed sequence. In all configurations, the 0° ply direction is parallel to the length of the broad goods roll or sheet, or tape.

Automated manufacture of continuous multi-ply product of two or more repetitive layers ensures sequential ply orientations at a reduction in manhour expenditure for hand layup of each ply.