PROCESS DEVELOPMENT FOR INTERNAL ROLL EXTRUSION OF LARGE ROCKET MOTOR CASES.

Abstract

This program of research work has been initiated for the purpose of developing a machine capable of producing large one-piece rocket motor cases. The maximum size of such cases is 160 in. in diameter by 240 in. long. The machine necessary to generate these cases was designed, constructed, and facilities provided. To prove the process one 121 in. diameter C-1029 mild steel balank, 60 inches long was then roll extruded to form a case 121 in. in diameter by 10 feet long. A 121 in. diameter D6AC steel blank, 60 in. long was roll extruded to form a case 121 inches in diameter by 10 ft long. This case is now being subjected to extensive tests by the Air Force to determine material qualities, tensile strength, psi, etc. Sufficient fabrication and testing has been conducted to demonstrate the ability of the roll extrusion process to provide a needed production readiness for large one-piece and/or segmented rocket motor cases and liquid engine tankange. (Author)

Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1966
Accession Number
AD0482944

Entities

People

  • Adolph W. Ernestus
  • Bernard J. Schmidt

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Diameters
  • Engines
  • Extrusion
  • Fabrication
  • Material Forming Processes
  • Materials
  • Materials Processing
  • Production
  • Rocket Engines
  • Rockets
  • Segmented
  • Tensile Strength

Readers

  • Metallurgy