EDM Process and apparatus for machining cavities and slots in a workpiece
Patent 4310742 Issued on January 12, 1982. Estimated Expiration Date: 
January 14, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
January 14, 2000. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3614372 3758739 3849624 Method for adjusting the eccentricity of a spark-erosion machining electrode endowed with a movement of circular translation and a device for the application of said method Method of electrical discharge machine with simultaneous relative advance and cyclic translational movement of the electrodes Patent #: 4104501 InventorAssigneeApplicationNo. 06/111930 filed on 01/14/1980US Classes:219/69.17, Methods219/69.16, Gap spacing control219/69.2Vibrating electrodes or workpieceExaminersPrimary: Shaw, C. C.Attorney, Agent or FirmInternational ClassesB23H 7/28 (20060101)B23H 7/26 (20060101) AbstractProcess and apparatus for cutting by electrical discharge machining cavities and slots in an electrode workpiece by means of an electrode tool, the electrodes being displaced one relative to the other in translation along a predetermined path. The translation motion is controlled such as to maintain predetermined machining conditions in the machining zone between the electrodes, and for additionally displacing the electrodes relative to each other in a direction different from the direction of the cutting path. The additional relative displacement of the electrode may be linear, non-linear, slanted or curvilinear. | |
