Metal deforming – By three or more coacting relatively movable tools – Concurrently actuated tools
Patent
1980-12-02
1982-12-14
Crosby, Gene P.
Metal deforming
By three or more coacting relatively movable tools
Concurrently actuated tools
B21D 4100
Patent
active
043632343
ABSTRACT:
A method and an apparatus, FIG. 1, for manufacturing sections (9,10,11), preferably for manufacturing beam preforms.
The method is characterized in that a blank (7) with rectangular or square cross-section is forged between a pair of web tools (1,2), in that the web tools (1,2) are moved to and from each other for forming a web portion (9) on said blank (7), and is forged against flange tools (3,4), in that the tools are moved to and from the web tools (1,2) in a direction perpendicular to the direction of movement of the web tools. The blank portion located between the web tools (1,2) and respective flange tool (3,4) is upset to form flange portions (10,11) between the flange tool (3,4) and respective sides (1',2',1",2") of the web tools (1,2).
The method further is characterized in that the blank (7) successively and in steps is fed in between the web tools (1,2) and successively and in steps is deformed by means of said tools (1,2,3,4).
REFERENCES:
patent: 3580032 (1971-05-01), Stone
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