Accession Number:

ADA181401

Title:

Computer Controlled Resin Impregnation for Composite Braiding

Descriptive Note:

Final rept. Sep 1985-Dec 1986

Corporate Author:

U S COMPOSITES CORP TROY NY

Personal Author(s):

Report Date:

1987-04-01

Pagination or Media Count:

73.0

Abstract:

Textile processes such as braiding may significantly reduce the cost of advanced composites. Braiding can be readily automated and offers high fiber deposition rates and geometric versatility in wetting fibers moving in a complex path. A novel resin impregnation system has been developed to adapt braiding to automated production of advance composites. A tubular braider has been equipped with a computer numerical control system. Two axes are used to drive pumps which feed resin and catalyst to the resin impregnation ring. The mix ratio and resin volume fraction can be coordinated in software with braider and mandrel speeds to fabricate parts which have complex features. Test specimens have been fabricated with glass, Kevlar, and carbon fibers. Fiber wetting and void content were evaluated from microphotographs of parts cured on a mandrel without compaction. Applications for the process include space station tubes, rocket motor cases, launch tubes, gun barrel reinforcement, rotor blades, stiffeners, drill risers, and similar structural components. Keywords Braids, Composite materials, Processing, Automation, Material forming.

Subject Categories:

  • Laminates and Composite Materials
  • Manufacturing and Industrial Engineering and Control of Production Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE