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