Superplastic Forming of 8091 Aluminum Lithium

Abstract

Aluminum-Lithium alloys have been introduced to the Aerospace community as a way to decrease weight and improve stiffness over conventional aluminum alloys for structural components. A manufacturing method which as created a great deal of interest for A1-Li aerospace applications is the fabrication of net shape parts by superplastic forming (SPF). Aluminum-Lithium alloys present some unique handling problems and fabrication challenges for established practices in superplastic forming. This paper will discuss the manufacturing challenges and approaches of forming 8091 AL-Li by SPF and provide a brief overview into the material characteristic which make 8091 a successful candidate for SPF aircraft parts. Keywords: Superplastic forming (SPF); Aluminum lithium (AL-Li); Advanced aluminum; Aluminum alloys.

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Document Details

Document Type
Technical Report
Publication Date
Jun 21, 1988
Accession Number
ADA200364

Entities

People

  • Ashish Ghosh
  • C. E. Antone
  • G. Gandhi
  • G. R. Martin

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Alloys
  • Aluminum Alloys
  • Back Pressure
  • Composite Materials
  • Elements
  • Fabrication
  • Grain Growth
  • Heat Treatment
  • Lithium Alloys
  • Manufacturing
  • Materials
  • Materials Engineering
  • Mechanical Properties
  • Strain Rate
  • Temperature Gradients

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials
  • Surface Engineering/Surface Coating Technology.
  • Systems Analysis and Design

Technology Areas

  • Space