Manufacturing Approaches to Resin Matrix Composite Airfoils for Gas Turbine Engines FREE

[+] Author Affiliations
R. A. Whitaker, W. H. Reinhart, C. H. Castle

TRW Inc., Cleveland, OH

Paper No. 71-GT-47, pp. V001T01A047; 8 pages
  • ASME 1971 International Gas Turbine Conference and Products Show
  • ASME 1971 International Gas Turbine Conference and Products Show
  • Houston, Texas, USA, March 28–April 1, 1971
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7982-5
  • Copyright © 1971 by ASME


Fan and compressor blades for gas turbine engines were identified early as potential applications for resin matrix composites. However, for these composites to reach production status, they have to be more effective than existing metal blades in both performance and cost. Graphite fiber and prepreg prices were surveyed for development and initial production price trends because composite material prices represent a significant portion of total part cost. Resin matrix composite airfoil construction is briefly described to aid in a later description of the related fabrication sequence. Manufacturing methods as currently anticipated for high volume production are discussed with regard to the fabrication sequence and effective material utilization. Quality requirements and appropriate inspection methods, both dimensional and nondestructive, are briefly reviewed. Several examples of current prototype work are described as they relate to proving out certain production processing concepts. It is important to work out volume production manufacturing methods concurrent to the composite blade design and engine testing efforts because both technologies have to be available if composite blades are to be accepted for use in an advanced technology engine.

Copyright © 1971 by ASME
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