Process for producing corrugated plate and device for...

Details Process for producing corrugated plate and device for... Process for producing corrugated plate and device for...

2008-04-29

2008-04-29

Banks, Derris H. (Department: 3725)

Metal deforming

By use of closed-die and coacting work-forcer

Forcing work into or within closed die; e.g., forging

C072S420000, C072S385000

Reexamination Certificate

active

07363797

ABSTRACT:
A device and a process for producing a corrugated plate having a plurality of bent-into-contact portions extending in parallel on one face of a metal plate employs a number of steps. A first pressing step sequentially molds a plurality of U-shaped bent portions in the metal plate. A second pressing step sequentially molds the bent-into-contact portions by sequentially crushing the plurality of U-shaped bent portions. In the first pressing step, the U-shaped bent portions are fed in a direction orthogonal to the direction of the U-shaped bent portions, and positioned, and are pressed in a state in which the position is released. In the second pressing step, another face of the metal plate is pressed flat while molding the bent-into-contact portions by pressing the U-shaped bent portions from both sides.

REFERENCES:
patent: 3798956 (1974-03-01), Kopczynski
patent: 3885410 (1975-05-01), Kopczynski
patent: 8-83871 (1996-03-01), None

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