Accession Number : AD0762612

Title :   Press Brake--Roll and Weld Fabrication of Prototype Large-Diameter Missile Cases.

Descriptive Note : Final rept. 3 May 72-3 May 73,

Corporate Author : BATTELLE COLUMBUS LABS OHIO

Personal Author(s) : Mueller,R. A.

Report Date : 25 JUN 1973

Pagination or Media Count : 61

Abstract : Three fullscale 16-inch diameter - 0.077-inch wall maraging steel missile cases were fabricated using a press-brake roll-and-weld technique. The two unique features of the technique are: (1) The welding together of flat sheet segments to form one large sheet; (2) The rolling of the sheet into a central cylindrical missile case using a multiple press brake bending sequence followed by seam welding. End closures were then girth welded onto the central case. A successful High-pressure proof test demonstrated the feasibility of the fabrication technique. (Author)

Descriptors :   (*ROCKET ENGINE CASES, MANUFACTURING), MECHANICAL WORKING, METAL FORMING BRAKES, INERT GAS WELDING, MARAGING STEELS, NONDESTRUCTIVE TESTING, RADIOGRAPHY, HYDROSTATICS

Subject Categories : Fabrication Metallurgy
      Solid Propellant Rocket Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE