Metal deforming – By tool-couple embodying nonplanar tool-face – With complementary tool-faces
Patent
1990-02-13
1991-07-16
Larson, Lowell A.
Metal deforming
By tool-couple embodying nonplanar tool-face
With complementary tool-faces
72421, 72176, B21D 506
Patent
active
050314408
ABSTRACT:
A forming apparatus for shaping a long plate member (31), converts on initial cross-section into a final sectional configuration, e.g., into a U-shaped final sectional configuraiton. The forming apparatus has an upper die (32) and a lower die (33) defining a forming part with pressing surfaces which are movable toward each other for a pressing operation. The long plate member is appropriately fed into the forming part. A drive mechanism reciprocates the upper die (32). The forming part defined by the upper die (32) and by the lower die (33) includes an initial forming region which is located on an inlet for the long plate member. The initial forming region has a forming configuration corresponding to a flat sectional configuration. A final forming region located at an outlet for the long plate member has a forming configuration corresponding to a U-shaped sectional configuration. Intermediate forming regions located between the inlet and the outlet have regions, of sectional configurations that change continuously along a feed advance direction so that the forming configuration of the initial forming region approaches or merges into the forming configuration of the final forming region.
REFERENCES:
patent: 3119432 (1964-01-01), Rogers
patent: 3485080 (1969-12-01), Lehmann
Enami Seiki Mfg. Co., Ltd.
Fasse W. G.
Kane, Jr. D. H.
Larson Lowell A.
McKeon Michael
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