Metal deforming – With means to drive tool – Including magnet – solenoid or explosive
Patent
1991-12-06
1995-03-21
Jones, David
Metal deforming
With means to drive tool
Including magnet, solenoid or explosive
72 19, 2924354, B21J 1524
Patent
active
053985370
ABSTRACT:
A riveting apparatus and method wherein riveting upset force is provided by a solenoid operated plunger wherein the current provided to the coil of the solenoid is controlled such as by a servo-controller to achieve rivet upset time versatility whereby cracking may be minimized while maintaining high quality rivet upset uniformity. A condition such as plunger velocity or applied force during upset is sensed, and signals indicative of the condition are fed back to the servo-controller so that the condition may be instantaneously adjusted as the plunger is moved for rivet upset.
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Dionne Joseph A.
Michalewski David
Gemcor Engineering Corporation
Jones David
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