Hydrostatic extrusion process and apparatus

Details Hydrostatic extrusion process and apparatus Hydrostatic extrusion process and apparatus

B - Operations, Transporting

21

C

18/726

B21C 23/00 (2006.01)

Patent

CA 1074068

ABSTRACT OF THE DISCLOSURE A hydrostatic extrusion process and an apparatus there- for includes a mandrel and a stem which are movable independently of each other, and a seal block which is utilized for increasing the pressure of the pressure medium for performance of the extru- sion operation of the billet. A supply device pre-disposes an extrusion die, a billet, pressure medium, and a seal block within a supply unit or sleeve and is capable of being moved from a position exterior of the extrusion apparatus station to a position corresponding to the extrusion station, and in this manner, the time period required for completing extrusion cycles is substan- tially reduced. Still further, a locking mechanism, including a locking slide and a locking plate, are operatively associated with the mandrel for controlling or limiting the axial movement of the mandrel so as to in turn control the loading and tensioning of the same in order to prevent damage thereto.

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