Abstract: An electroforming apparatus and an electroforming method that are capable of readily shaping an electroformed piece with high accuracy (particularly shaping of a spot-faced configuration or the like in a hollow portion) are provided. An electroforming tank 1 is provided with an air supply device 11 to form an air bubble layer 12 on the surface 3 of an electrolyte 2. A tapered portion 52 is formed at the upper end of a primarily electroformed piece 51 in the air bubble layer 12 by controlling the vertical movement of a bus 50. A secondarily electroformed piece 53 is formed on the primarily, electroformed piece 51 and the bus 50, whereby a spot-faced portion 55 patterned on the tapered portion 52 is formed in a hollow portion 54 of the secondarily electroformed piece 53.

Abstract: An electroforming apparatus and an electroforming method that are capable of performing high-precision electroforming are provided. An electroforming tank 1 accommodated in an outer tank 2 is continuously supplied with an electrolyte 3 from a control tank 5, and electroforming is carried out in an overflow layer 10 of electrolyte 3 formed over the electroforming tank 1. A bus 25 for electroforming that is retained by a retaining jig 30 is carried along the overflow layer 10 by a jig transfer device 20. The electrolyte 3 overflowing the electroforming tank 1 is collected into a control tank 5 from the outer tank 2 and supplied to the electroforming tank 1 again after being filtered.