Improved Materials and Manufacturing Methods for Gun Barrels. Part II.

Abstract

New and efficient metal-shaping procedures for the fabrication of 7. 62mm gun barrels were evaluated. The materials considered were Inconel 718, Vasco-Jet M-A(CVM), and a cobalt-base alloy in powder form. Gun drilling, ECM stem drilling, hot piercing and extrusion, and filled-billet extrusion were evaluated for tube fabrication before subsequent precision rotary swaging of the rifling. Gun drilling of these alloys was the most economical tube fabrication procedure. The filled-billet technique is most amenable to consolidation-tube fabrication from powdered alloys. Precision rotary-swaging was evaluated for rifling the tubes and for determining the feasibility of combined rifling and chambering during swaging.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1972
Accession Number
AD0751863

Entities

People

  • A. L. Hoffmanner
  • J. D. Dibenedetto
  • K. R. Iyer

Tags

DTIC Thesaurus Topics

  • Assembly
  • Chemical Synthesis
  • Chemistry
  • Chromium
  • Fabrication
  • Geometry
  • Heat Resistant Alloys
  • Heat Treatment
  • High Temperature
  • Manufacturing
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Measurement
  • Metals
  • Production

Fields of Study

  • Materials science

Readers

  • Manufacturing Engineering.
  • Surface Engineering/Surface Coating Technology.
  • ballistics.