Metal deforming – By application of fluent medium – or energy field – By kinetic energy of fluid or field
Patent
1995-12-04
1997-06-03
Jones, David
Metal deforming
By application of fluent medium, or energy field
By kinetic energy of fluid or field
72430, 72707, B21D 2614
Patent
active
056343647
ABSTRACT:
An expandable, segmented coil is disclosed for use in electromagnetic can forming. The segmented coil comprises a central camshaft and a plurality of coil segments equally spaced about the central camshaft. Each of the plurality of coil segments comprises a coil core and a conductive tubing. The coil core including a central longitudinal bore and a profiled plate cooperating with the camshaft and movable between a collapsed position and an expanded position upon rotation of the camshaft. The tubing being routed through the central bore, wrapped around the coil core to form coil windings, and terminating in a conductor terminal for connection to a power supply for energization of the coil. The central camshaft includes an elongated shaft with a profiled cam plate on one end thereof. Each profiled plate of the coil core includes a cam follower cooperating with the profiled cam plate to cause movement of the coil segments between the collapsed position and the expanded position.
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Arfert Horst F.
Gardner Terrance L.
Jones David
Lyne, Jr. Robert C.
Reynolds Metals Company
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