Study of Low-Cost Fabrication Methods for Aerospace Composite Materials.
Abstract
Flat and hat section specimens of graphite/epoxy composite materials have been fabricated by the resin bath or wet pultrusion process and submitted to NASA-Langley. This demonstrated the feasibility of incorporating cross-plied graphite fiber reinforcements in conjunction with epoxy resin systems in the wet pultrusion process. However, the thickness constraints of the pultrusion process, the lack of dimensional stability of the crossply materials and equipment limitations affect the quality of the hat section pultrusions. The wet pultrusion process shows promise of being a low cost method for producing composite parts with constant cross section along the length. A cost analysis showed at least 80 percent cost reduction for the hat section and 40 percent for flat panel by pultrusion over the conventional manual and automated lay-up.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1978
- Accession Number
- ADA304745
Entities
People
- Harvey H. Chung
Organizations
- Lockheed Martin