Accession Number : AD0462137


Title :   EVALUATION OF THREE ARDE-PORTLAND CRYOGENIC STRETCHED FORMED SUBSCALE ROCKET MOTOR CASES.


Descriptive Note : Phase rept.,


Corporate Author : THIOKOL CHEMICAL CORP HUNTSVILLE AL


Personal Author(s) : Daigle, David L


Report Date : 23 Apr 1965


Pagination or Media Count : 1


Abstract : As part of an Army Material Research Agency program to evaluate candidate rocket motor cases for future Army missile systems, and evaluation of three 12.5 in. motor cases was performed. The cases were made from AISI 301 stainless steel by a cryogenic stretch forming process. After dimensional and radiographic inspections, each case was subjected to a hydrostatic burst pressurization test at -65 F. The performance of the cases under the low temperature pressurization tests was entirely satisfactory. The performance of the three cases under pressurization at low temperature has demonstrated that the cryogenic stretch forming process is a potential fabrication technique for the manufacture of motor cases for future Army missile systems. Further work is necessary to demonstrate better dimensional control and also to demonstrate that the process can be used to fabricate larger sized high strength cases. (Author)


Descriptors :   *ROCKET ENGINE CASES , STRETCH FORMING , TABLES(DATA) , PIEZOELECTRIC TRANSDUCERS , RUPTURE , ENGINEERING DRAWINGS


Distribution Statement : APPROVED FOR PUBLIC RELEASE