Metal deforming – By use of non-deforming work-gripping clamp and relatively... – Clamp structure constitutes sole initial metal-deforming...
Patent
1995-07-18
1997-07-01
Jones, David
Metal deforming
By use of non-deforming work-gripping clamp and relatively...
Clamp structure constitutes sole initial metal-deforming...
72478, 72413, B21D 504, B21D 1120
Patent
active
056426399
ABSTRACT:
A blank holder having variable assembly is used in a folding machine for the production of a sheet panel. It comprises a central element (3), a plurality of additional elements (6), a pair of expander elements (4), two extremity members (7), at least one programmable carriage (15) movable along the blank holder which is operable to modify the length of the blank holder.
REFERENCES:
patent: 4532792 (1985-08-01), Hongo
patent: 4660402 (1987-04-01), Hongo
patent: 4722214 (1988-02-01), Hayashi et al.
patent: 4930332 (1990-06-01), Hongo
Jones David
Sapim Amada S.p.A.
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