Accession Number:

ADA954188

Title:

Cold-Working of Gun Tubes,

Descriptive Note:

Corporate Author:

WATERTOWN ARSENAL MA

Personal Author(s):

Report Date:

1943-01-16

Pagination or Media Count:

26.0

Abstract:

The object is to determine the cause for failure of the breech and packing during cold-working of 90 MM. Gun Tube C-144C. The gun tube material was satisfactory and therefore not a contributing cause for failure. Failure was most probably induced by the combination of too great an unsupported area between the gun tube bore and centering piece, flare out taper of the gun tube bore at the breech end, and the location of the packing seal. Future inspection should be such that will nsure the open clearance between gun tube bore and centering piece be kept at a minimum and that the gun tube bore is uniform in diameter in the region where the packing is located.

Subject Categories:

  • Metallurgy and Metallography
  • Guns

Distribution Statement:

APPROVED FOR PUBLIC RELEASE