Process Development--Tungsten Hemispheres.

Abstract

This report presents the summary of activities conducted to develop two separate sintering processes from two tungsten manufacturers that have years of experience and expertise in the field of tungsten powder metallurgy. The objectives of this development program was to: (1) Lower the scrap rate due to cracking to 1 - 2%; (2) Improve material quality (reduce or eliminate porosity); (3) Develop an 'as sintered' product that had a ductility of 25%; (4) Produce an 'as sintered' tungsten disc with a collar i.e., eliminate the fragment lines near the outer edge of the disc; and (5) Qualify two heavy metal suppliers of tungsten discs for follow-on large quantity production.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1980
Accession Number
ADA086972

Entities

Organizations

  • Vought

Tags

Communities of Interest

  • Energy and Power Technologies
  • Human Systems

DTIC Thesaurus Topics

  • Chemical Analysis
  • Chemistry
  • Contractors
  • Contracts
  • Engineering
  • Heat Treatment
  • High Density
  • Manufacturing
  • Materials
  • Mechanical Properties
  • Particle Size
  • Physical Properties
  • Powder Metallurgy
  • Production
  • Quality Control
  • Tensile Strength
  • Test Methods

Fields of Study

  • Materials science

Readers

  • Metallurgy