to the anode basket and the negative end of the dc source connected to a brush and a brush split ring arrangement on the drive shaft which supports and drives the mandrel the electroplating current passes from the dc source to the anode basket to the plating solution the mandrel the drive shaft the split ring the brush and back to the dc source in operation the mandrel is lowered into the electroplating tank and continuously rotated about its vertical axis as the mandrel rotates a layer of electroformed metal is deposited on its outer surface when the layer of deposited metal has reached the desired thickness the mandrel is removed from the electroplating tank any suitable method and apparatus may be optionally employed to assist in the removal of the electroformed article from the mandrel for example a mechanical parabolic end parting fixture may be employed to grasp the preferably parabolic shaped end of the electroform the grasping jaws may have as few as three fingers or may completely contact the electroform circumference like a lathe collet alternatively a vacuum cup may be placed under the preferably parabolic shaped end of the mandrel a vacuum would be generated by the use of air pressure or vacuum pump in another approach the electroform mandrel composite structure is inserted into an induction coil and by energizing the coil the electroform is heated and consequently enlarges thereby loosening it from the mandrel in a different approach vibrational energy especially ultrasonic energy is used to cause the.