Metal deforming – By three or more coacting relatively movable tools – Concurrently actuated tools
Patent
1974-12-23
1976-03-23
Larson, Lowell A.
Metal deforming
By three or more coacting relatively movable tools
Concurrently actuated tools
72403, 72452, B21J 732
Patent
active
039452379
ABSTRACT:
In a high-speed hammer, precision forging machine the hammers are radially oriented with respect to the axis of the workpiece and are arranged in a plurality of opposed pairs. The hammers are positively coupled to each other by gearing. Displacement elements such as pairs of wedges that are longitudinally positioned between each hammer and its respective die holder so that, during the simultaneous movement of the dies towards the workpiece, an additional stroke movement is achieved. Mechanical, hydraulic, pneumatic or electrical means may be used to control the movement of the displacement elements.
REFERENCES:
patent: 1617890 (1927-02-01), Abbey
patent: 2986051 (1961-05-01), Appel
patent: 3146642 (1964-09-01), Kralowetz
patent: 3263474 (1966-08-01), Pentland
Larson Lowell A.
Marmorek Ernest F.
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