Metal deforming – With cutting – By shearing tool-couple
Patent
1997-03-03
1998-09-08
Crane, Daniel C.
Metal deforming
With cutting
By shearing tool-couple
72351, 72404, 83 50, B21D 2802
Patent
active
058029079
ABSTRACT:
The dynamic loading on a double action high speed mechanical cupping press is substantially reduced with sets of tooling at multiple stages which forms a batch of cups from a strip of sheet metal with each stroke of the press. The tooling stages are positioned at predetermined stepped elevations and are arranged so that they sequentially blank the sheet metal to form a series of nested and out-of-round or contoured blanks. The tooling stages also sequentially hold the blanks and sequentially draw the blanks into cups. The tooling stages are symmetrically positioned with respect to the press center line, and each tooling set may also include a bottom panel punch surrounded by a pressure sleeve for sequentially forming a preform boss within the bottom wall of each cup.
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