Modeling of Residual Stress and Machining Distortion in Aerospace Components (PREPRINT)

Abstract

The insertion of new materials into aircraft systems takes several years and many millions of dollars. Experimental trials to define the manufacturing process to meet the specifications can add significant time and cost. Many military programs have small lot production in either initial engine development programs or specialized production, providing additional criticality to improving the "First Time Yield" (FTY) of manufacturing processes, and quickly resolving production issues. Additionally, the impact of an unintended process change is unknown without evaluating the component, again adding time and cost to issue resolution. Therefore, new approaches are required to facilitate the rapid certification of materials and processes technologies. Significant improvements in manufacturing processes have been realized by process modeling tools such as DEFORM(Trademark) and FORGE for metal forming and Procast(Trademark) for casting, which are now in routine industrial use.

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Document Details

Document Type
Technical Report
Publication Date
Mar 01, 2010
Accession Number
ADA523921

Entities

People

  • Kong Ma
  • Robert Goetz
  • Shesh K. Srivatsa

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Computational Fluid Dynamics
  • Creep
  • Finite Element Analysis
  • Fluid Flow
  • Heat Transfer
  • Manufacturing
  • Materials
  • Mechanical Properties
  • Mechanical Working
  • Mechanics
  • Production
  • Stresses
  • Test Methods
  • Three Dimensional
  • Two Dimensional

Readers

  • Life Cycle Cost Analysis
  • Metallurgy
  • Software Engineering

Technology Areas

  • Space