Press forming die assembly

Details Press forming die assembly Press forming die assembly

2008-08-20

2011-11-15

Tolan, Edward (Department: 3725)

Metal deforming

By use of closed-die and coacting work-forcer

Cup or shell drawing

Reexamination Certificate

active

08056385

ABSTRACT:
A press forming die assembly for press forming a blank material includes a draw forming portion that the blank material flows and a draw bead for controlling the amount of the blank material flowing into the draw forming portion. A first draw bead is provided at a periphery of the draw forming portion in a direction substantially parallel to an outer peripheral shape of the draw forming portion. A second draw bead extends from the first draw bead toward the outside of the draw forming portion in a direction intersecting the first draw bead. The blank material includes a thick sheet portion having a greater thickness than the other portion or a high rigidity portion having a higher rigidity than that of the other portion. The second draw bead is provided at a portion corresponding to the thick sheet portion or the high rigidity portion of the blank material.

REFERENCES:
patent: 1881517 (1932-10-01), Groehn
patent: 4195510 (1980-04-01), Juergens
patent: 5901599 (1999-05-01), Sato et al.
patent: 5941110 (1999-08-01), Cao et al.
patent: 6354131 (2002-03-01), Pirchl
patent: 6745609 (2004-06-01), Garnett et al.
patent: 7320239 (2008-01-01), Kruger et al.
patent: 7340934 (2008-03-01), Kurokawa et al.
patent: 1-299717 (1989-12-01), None
patent: 06-000542 (1994-01-01), None
patent: 2001-259751 (2001-09-01), None
patent: 2002-263746 (2002-09-01), None

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