Accession Number : ADD002948
Title : Embossing Method.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C
Personal Author(s) : Sunderland,Willis W
Report Date : 16 Mar 1976
Pagination or Media Count : 9
Abstract : The patent relates to a cup-shaped blank extruded through a die onto a cylindrical non-collapsible mandrel having an external surface pattern counter to a desired internal embossment. Subsequently, the embossed portion of the blank is hydrostatically expanded away from the mandrel to permit removal of the embossed part from the mandrel. The application of hydrostatic pressure to the exterior of the blank during the extruding operation is disclosed.
Descriptors : *Extrusion, *Patents, Pressing(Forming), Mandrels, Hydrostatic pressure
Subject Categories : Mfg & Industrial Eng & Control of Product Sys
Distribution Statement : APPROVED FOR PUBLIC RELEASE