Abstract: A forming method of forming a plate-shaped workpiece using a female tool having a concave section of a desired shape and a male tool which matches with the female tool, includes the following steps: providing an elastic punch in a cylindrical holder provided in the male tool; pressurizing and compressing the elastic punch relatively by a pressuring member; pressing the holder against the workpiece by means of one portion of the elastic punch; and projecting one portion of the elastic punch from the holder so as to deform a portion of the workpiece to be processed according to the shape of the concave section of the female tool so that the workpiece is formed in a state such that the workpiece is nipped pressingly between the female tool and the holder.

Abstract: A forming method of forming a plate-shaped workpiece using a female tool having a concave section of a desired shape and a male tool which matches with the female tool, includes the following steps: providing an elastic punch in a cylindrical holder provided in the male tool; pressurizing and compressing the elastic punch relatively by a pressuring member; pressing the holder against the workpiece by means of one portion of the elastic punch; and projecting one portion of the elastic punch from the holder so as to deform a portion of the workpiece to be processed according to the shape of the concave section of the female tool so that the workpiece is formed in a state such that the workpiece is nipped pressingly between the female tool and the holder.

Abstract: A compress working method and a compress working apparatus are provided for readily performing drawing in an arbitrary shape at a low cost and in a short time without using an expensive mold in the manufacturing of small batch products. A metal plate, which is a workpiece, is placed on a laminate die formed with a recess in a desired shape, and a holder is set on the metal plate. An elastic punch accommodated in the holder is urged to press the holder onto the metal plate with a portion of the urging force. In this state, a portion of the elastic punch is intruded into the recess of the laminate die together with the metal plate. The elastic punch is then unloaded after the metal plate is formed with a draw conformal to the recess of the laminate die. Since the elastic punch serves as an upper die in the press working, it is possible to readily perform the drawing in an arbitrary shape at a low cost and in a short time without using an expensive mold in the manufacturing of small batch products.