Accession Number : AD0761530

Title :   Heated Dies for Forging and Friction Studies on a Modified Hydraulic Forge Press.

Descriptive Note : Summary technical rept. Apr 71-Aug 72,

Corporate Author : WESTINGHOUSE ELECTRIC CORP PITTSBURGH PA ASTRONUCLEAR LAB

Personal Author(s) : Abson,D. J. ; Brown,T. M. ; Gurney,F. J.

Report Date : NOV 1972

Pagination or Media Count : 22

Abstract : A heated die assembly, designed to bolt onto a hydraulic forge press, is described. Novel features of the design include (a) split heater blocks, which contain semi-cylindrical grooves and which bolt in pairs around cartridge heaters, thereby facilitating both fabrication of the blocks and replacement of defective heaters; (b) bolt-on die face plates which are readily interchangeable and which may have either a flat or a shaped work-face; and (c) laminated, load-bearing insulating stacks consisting of alternate layers of a nickel-base alloy and alumina. The maximum operating temperature of the apparatus is approximately equal to 1850F (approximately equal to 1280K), and the maximum workpiece flow stress which can be accommodated at this temperature is approximately equal to 20 ksi (14 x 10 to the 8th power Nm to the minus 2 power). (Modified author abstract)

Descriptors :   (*DIES, FORGE PRESSES), HEATING, FRICTION, HYDRAULIC PRESSES, FORGING, THERMAL INSULATION

Subject Categories : Machinery and Tools

Distribution Statement : APPROVED FOR PUBLIC RELEASE