Accession Number : AD0438713


Title :   RESEARCH AND DEVELOPMENT OF TITANIUM ROCKET MOTOR CASE. VOLUME 2. RING ROLLING AND FLOWTURNING CYLINDRICAL SECTIONS


Descriptive Note : Final rept


Corporate Author : PRATT AND WHITNEY AIRCRAFT GROUP EAST HARTFORD CT


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/438713.pdf


Report Date : 31 Oct 1963


Pagination or Media Count : 206


Abstract : A major improvement in flow-turning technique was developed with subscale parts. The effects of roller geometry, mandrel speed, wall thickness reduction per pass, and roller-feed rate on radial growth and local bulging were determined. It was found that roller geometry had the most predominant effect on dimensional control and a new roller design with parabolic contours was developed which gave positive control of diametral growth. A correlation of flow-turning parameters was developed which permitted techniques developed with subscale cylinders to be directly applied to full scale parts. The resulting full scale flow-turned cylinders had very little diametral growth and no local bulging.


Descriptors :   *ROCKET ENGINE CASES , *TITANIUM ALLOYS , FRACTURE(MECHANICS) , HEAT TREATMENT , TABLES(DATA) , VANADIUM ALLOYS , CRYSTAL STRUCTURE , MATERIAL FORMING , CHROMIUM ALLOYS , ALUMINUM ALLOYS , METAL SPINNING


Subject Categories : Solid Propellant Rocket Engines


Distribution Statement : APPROVED FOR PUBLIC RELEASE