High internal pressure forming process

Details High internal pressure forming process High internal pressure forming process

B - Operations, Transporting

29

C

B29C 49/58 (2006.01) B21C 37/29 (2006.01) B21D 26/02 (2006.01)

Patent

CA 2416088

The invention relates to a device far forming a single or mufti-chamber workpiece (42) by means of high internal pressure created by a medium capable of flow in the hollow interior (5) of the workpiece. The device contains a forming tool (4) with a cavity accommodating the workpiece (42) and pressure generating equipment (1) for generating the high internal pressure. The pressure generating equipment (1) contains a displacement pump with pressure converter comprising a longitudinally coupled displacement body with different working surface areas A1, A2, which op- erates with a stroke frequency f, whereby strokes of the pressure converter cause a pressure p1 created on the primary side to be raised until a higher secondary pres- sure p2 is reached on the secondary side.

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