Cold Rotary Forging

Abstract

Cold rotary forging of thin wall alloy steel cylinders was investigated. The cold working resulted in a small amount of strain hardening, as measured by an increase in longitudinal yield strength. The behavior was attributed to the bauschinger effect. It was possible to recover the strength by a thermal treatment at 800F - 1000F. In addition to the data on mechanical properties, data are also presented on induced residual stresses. The thermal treatments which resolved the strength problem also effectively eliminated the residual stresses. Since the ultimate aim of the cold working was to produce a finished recoilless rifle tube, the cylinders were forged with an internal rifled configuration.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1975
Accession Number
ADA018990

Entities

People

  • Alfred A. Campione
  • Francis A. Heiser
  • Leonard Liuzzi

Tags

Communities of Interest

  • Air Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Cold Working
  • Finishes
  • Gun Barrels
  • Guns
  • Materials
  • Measurement
  • Mechanical Properties
  • Mechanical Working
  • Orientation (Direction)
  • Recoilless Rifles
  • Residual Stress
  • Rifles
  • Small Arms
  • Stresses
  • Test And Evaluation
  • Transverse
  • X-Ray Diffraction

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Metallurgy