3 Fundamentals of press design

236 Sheet metal forming and blanking
Through the use of recently developed, controlled draw cushions in
the press bed, today it is possible to execute all the necessary production
steps on a large-panel transfer press (cf. Sect. 3.1.4). As workpiece
transport from the first to the last processing station now only takes
place using a single transfer system, higher transport speeds are possible.
Depending on the transfer step, these lines are capable of an output
of between 15 and 25 parts per minute. This corresponds to an increase
in output of some 50% over an automated press line.
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Fig. 4.4.28 Large-panel transfer press systems
a double-action press combined with a transfer press
b press with three uprights
c press with four uprights
Metal Forming Handbook / Schuler (c) Springer-Verlag Berlin Heidelberg 1998
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