Accession Number:

ADA018990

Title:

Cold Rotary Forging

Descriptive Note:

Technical rept.

Corporate Author:

WATERVLIET ARSENAL NY

Report Date:

1975-09-01

Pagination or Media Count:

46.0

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.

Subject Categories:

  • Fabrication Metallurgy
  • Guns

Distribution Statement:

APPROVED FOR PUBLIC RELEASE