THE VALUE OF PRESSURE TESTS AND RADIOGRAPHS OF GUN METAL CASTINGS,

Abstract

Cast gun metal plates 1 in. x 8 in. x 6 in. of composition 88 Cu - 8 Sn - 4 Zn, containing defective areas, were investigated by radiography and tested under hydrostatic pressure. After machining metal from both sides of the castings, radiographs were taken and the castings pressure tested at the new thicknesses. The plates were divided into four major classifications by the appearance of the radiographs of the one-inch section. Radiographs of castings that were pressure-tight and castings which leaked are shown. It was concluded that castings intended for critical use should be radiographed as well as pressure tested. (Author)

Document Details

Document Type
Technical Report
Publication Date
Mar 08, 1947
Accession Number
AD0620585

Entities

People

  • William H. Baer

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Casting (Fabrication)
  • Castings
  • Classification
  • Fabrication
  • Hydrostatic Pressure
  • Machining
  • Manufacturing
  • Metal Casting
  • Metal Plates
  • Radiography
  • Structural Components
  • Thickness

Fields of Study

  • Materials science

Readers

  • Electrical Engineering
  • Explosive Engineering.
  • Surface Engineering/Surface Coating Technology.