Computer Controlled Resin Impregnation for Composite Braiding
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.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1987
- Accession Number
- ADA181401
Entities
People
- August H. Kruesi
- Gregory H. Hasko