Accession Number : AD0437255


Title :   EVALUATION OF RMSP TUNGSTEN SHEET


Descriptive Note : Quarterly progress rept. no. 3, 1 Jan-31 Mar 1964


Corporate Author : SOLAR TURBINES INTERNATIONAL SAN DIEGO CA


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/437255.pdf


Report Date : 20 Apr 1964


Pagination or Media Count : 57


Abstract : The evaluation of the as-received four gages of RMSP tungsten sheets using standard acceptance test techniques was continued. Resistance heated elevated tensile tests, 5T and 6T bend-transition determinations, recrystallization measurements, and chemical analysis for carbon niobium were performed. The recrystallization measurements indicated that the recrystallization temperatures for the 0.010-, 0.020-, 0.060-, and 0.100 in. sheet, are 2450, 2500, 2525, and 2550 F, respectively. Blanking, perforating, and deep drawing investigations were conducted on each of the four tungsten sheet thicknesses. The results of the blanking and perforating studies indicate that these forming methods could be accomplished by control of sheet temperature, close tolerance tooling, and control of forming procedures. Preliminary deep drawing of 0.060-inch tungsten sheet with a drop hammer was not successful. The deep drawing of 0.060-inch and 0.100-inch tungsten sheet was successfully accomplished with steel tooling and a hydraulic press.


Descriptors :   *SHEETS , *TUNGSTEN , THICKNESS , MECHANICAL PROPERTIES , MICROSTRUCTURE , DUCTILITY , RECRYSTALLIZATION , SCIENTIFIC RESEARCH , MATERIAL FORMING , HARDNESS , CHEMICAL ANALYSIS , HIGH TEMPERATURE , BRITTLENESS , TRANSITION TEMPERATURE


Subject Categories : Metallurgy and Metallography


Distribution Statement : APPROVED FOR PUBLIC RELEASE