EVALUATION OF THE DEBURRING OF 40 MM CARTRIDGE CASES BY THE VAPOR BLAST PROCESS

Abstract

An inherent problem in the production of 40 mm cartridge cases is the presence of burrs in the vent-holes of the powder chamber. A process to remove these burrs without enlarging the holes or changing the dimensions of the chamber was required. A solution to this burr problem is provided by a recently built machine. The amount of burr removed by vaporblasting depends upon the abrasive used, the duration of blast, percent of abrasive by volume, and the type of burr. Some combinations are more suitable than others, the best appearing to be the use of seven percent 100 Quartz, vapor blast (QVB) abrasive for 30 seconds.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1961
Accession Number
AD0262339

Entities

People

  • Henry C. Seavey
  • Neal J. Friedman

Organizations

  • Picatinny Arsenal

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abrasives
  • Aluminum Oxides
  • Ammunition
  • Cartridge Cases
  • Cis
  • Corporations
  • Engineering
  • Extrusion
  • Government Procurement
  • Machines
  • Manufacturing
  • Metals
  • Munitions
  • New Jersey
  • Production
  • Test And Evaluation

Readers

  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Manufacturing Engineering.
  • Thermal Physics or Thermal Science.