Accession Number : AD0736869
Title : Application of Electoslag Melted Steel to Rocket Case Fabrication.
Descriptive Note : Final technical rept. 1 Feb-31 Dec 70,
Corporate Author : ROCKETDYNE MCGREGOR TEX SOLID ROCKET DIV
Personal Author(s) : Butler,D. J. ; Levy,V. ; Oxley,J. H.
Report Date : 30 APR 1971
Pagination or Media Count : 73
Abstract : Seven 16-inch OD hollow billets of ESR D6a steel were cast and machined to produce 13 preforms, approximately 12 inches long. Eleven of these preforms were shear spun into thin wall rocket motor sections. Chemical, mechanical, and nondestructive tests were conducted on the ESR billets, on shear spun cylinders, and on weldments made with specimens from the cylinders. Comparisons were made between D6a ESR steel and D6ac steel which is used for current production of PHOENIX rocket motor cases. These comparisons included machinability, shear spinning behavior, weldability with an electron beam welder, and mechanical properties. Two PHOENIX rocket motor cases were fabricated using the ESR shear spun cylinders, and hydroburst tests of these cases were conducted. (Author)
Descriptors : (*ROCKET ENGINE CASES, MANUFACTURING), (*METAL SPINNING, ROCKET ENGINE CASES), SOLID PROPELLANT ROCKET ENGINES, STEEL, CYLINDRICAL BODIES, CASTING, ELECTRON BEAM WELDING, MECHANICAL PROPERTIES
Subject Categories : Fabrication Metallurgy
Distribution Statement : APPROVED FOR PUBLIC RELEASE