Refinement of Casting Techniques for Small Air-Cooled Turbine Blades. Phase 1A

Abstract

The design of the T700 stage-one turbine blade was reevaluated to permit application of advanced coring techniques to investment cast turbine blades. Small cores were machined to produce turbulators within the cored passages and bent to provide serpentine cooling passages. Injection molding of ceramic materials was investigated as a method of reducing the cost of small intricate cores. These techniques resulted in improved use of cooling air, and they can increase blade life or specific fuel consumption over the standard configuration. Design history, manufacturing steps, qualification procedures, and cost analysis are discussed for the Advanced Core Technology blade.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1978
Accession Number
ADA063211

Entities

People

  • G. S. Irons

Organizations

  • General Electric

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Cooled
  • Ceramic Materials
  • Cost Analysis
  • Costs
  • Engineering
  • Engineers
  • Heat Transfer
  • Lasers
  • Leading Edges
  • Machining
  • Manufacturing
  • Materials
  • Production
  • Trailing Edges
  • Turbine Blades
  • Turbine Components
  • Turbines

Fields of Study

  • Materials science

Readers

  • Combustion and Flow Dynamics.
  • Manufacturing Engineering.
  • Systems Analysis and Design