Metal deforming – Tool and/or tool holder – Tool comprising closed periphery deforming passageway
Patent
1998-08-28
2000-02-22
Crane, Daniel C.
Metal deforming
Tool and/or tool holder
Tool comprising closed periphery deforming passageway
72282, 72 41, B21C 312, B21C 900
Patent
active
060266724
ABSTRACT:
The inventive pressure die holder is comprised of an elongate hollow steel cylinder which receives a series of dies in an interior cavity. The dies are maintained within the cavity by means of a cap which is attached to one end of the pressure die holder. The inventive pressure die holder is provided with two sets of vents which relieve lubricant pressure within the pressure die holder. The first set of vents are located in mid portion of the body of the pressure die holder in alignment with the dies. The first set of vents reduce pressure between the die pair, allowing the lubricant to flow through the die at a cooler temperature. The second set of vents are located in the body of the pressure die holder adjacent the cap, and allow the cap to be removed from the pressure die holder at the end of the drawing operation.
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Crane Daniel C.
Meroni Charles F.
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