Metal deforming – By tool-couple embodying nonplanar tool-face – With adjustable or replaceable section of tool-face
Patent
1994-12-05
1996-08-20
Larson, Lowell A.
Metal deforming
By tool-couple embodying nonplanar tool-face
With adjustable or replaceable section of tool-face
72473, 72478, B21D 3702, B21D 3714
Patent
active
055467849
ABSTRACT:
This invention details a computer controlled self adjusting sheet metal forming die which can provide rapid contour changes. It eliminates the need to manufacture, store, and change individual forming dies for forming different contours, and comprises a computer control device which sends appropriately timed signals to translate each contour element so that a three dimension surface is formed by a discrete matrix of individual pins. This self adjusting sheet metal forming die is used on a sheet metal press wherein sheet metal can be formed by pressing or stretch forming the metal against the contoured surface.
REFERENCES:
patent: 4131003 (1978-12-01), Foster et al.
patent: 4212188 (1980-07-01), Pinson
patent: 4548065 (1985-10-01), Vyhnal
patent: 5187969 (1993-02-01), Morita
Webb, R. D., et al., "A Transfer Function Description of Sheet Metal Forming for Process Control", (Nov. 1989) (Manuscript received Apr., 1988 for publication in the Journal of Engineering for Industry).
Haas Edwin G.
Kesselman Martin
Anderson Terry J.
Butler Rodney A.
Grumman Aerospace Corporation
Hoch Jr. Karl J.
Larson Lowell A.
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