Electric heating – Metal heating – Cutting or disintegrating
Patent
1982-11-29
1985-03-19
Envall, Jr., Roy N.
Electric heating
Metal heating
Cutting or disintegrating
73468, 2041292, 219 69R, 219 69P, B23P 108, G01M 138
Patent
active
045061335
ABSTRACT:
A dynamic balancing machine having a full-automatic reforming unit is disclosed. The machine includes a pair of oscillatory bearing units for resiliently supporting a workpiece rotatably about a horizontal axis. Pickups are provided to sense the oscillations of the rotating workpiece about the axis. A computing unit responds to oscillation signals to determine therefrom and from signals representing the rotation of the workpiece the amounts and positions of local unbalance of the workpiece. For reforming operation, a fluid-actuated piston/cylinder arrangement is used to fix the axis of rotation of the workpiece in alignment with the horizontal axis to enable the workpiece to rotate without oscillations. The reforming unit comprises an EDM arrangement and control circuit responsive to the computing unit for controlling parameters of machining by an EDM tool electrode located in machining relationship with each of the regions of the computed positions so as to electroerosively remove from each region the computed amount of material and reform the workpiece.
REFERENCES:
patent: 2322561 (1943-06-01), Blevins
patent: 2346975 (1944-04-01), Laboulais
patent: 3482075 (1969-12-01), Wilde
patent: 4028524 (1977-06-01), Moll et al.
patent: 4060707 (1977-11-01), Olsson et al.
patent: 4170528 (1979-10-01), Mathews
patent: 4419894 (1983-12-01), Matumoto
Dubno Herbert
Envall Jr. Roy N.
Evans Geoffrey S.
Inoue-Japax Research Incorporated
Ross Karl F.
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