Patent ID: 8535491

Claim:
An electrochemical machining assembly for machining curved holes in a workpiece, the assembly comprising: at least one curved, hollow electrode comprising curved, hollow, electrically conductive member and an electrically insulating coating covering at least a portion of a side surface of the curved, electrically conductive member; a power supply operatively connected to provide a pulsed voltage to the at least one curved, hollow electrode and to the workpiece; a rotational driver operatively connected to move the at least one curved, hollow electrode along a curved path within the workpiece; and an electrolyte fluid source in fluid connection with the at least one curved, hollow electrode for supplying an electrolyte to the at least one curved, hollow electrode, wherein the electrochemical machining assembly is configured to remove material from the workpiece upon application of the pulsed voltage to the at least one curved, hollow electrode and to the workpiece.