| 摘要 |
Material is removed electrolytically from a conductive workpiece to form a cavity the peripheral edge of which is radiused by first generating the cavity with a first stream of electrolyte charged cathodically with respect to the workpiece at an electrical potential sufficient to create in the electrolyte stream a condition at least of incipient glow. After generation of the peripheral edge, it is radiused by contacting the edge with a second stream of electrolyte shaped generally to conform with the shape of the peripheral edge and charged cathodically with respect to the workpiece independently from the first stream. The second stream is charged in timed relationship with the first stream to control the radiusing action.
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