Sequential molding apparatus and sequential molding method

摘要

PROBLEM TO BE SOLVED: To efficiently forge a forged product, and to forge by exchanging a plurality of forming punches in a mold clamped state to improve the machining efficiency, reduce the cost, and improve the durability of a die. SOLUTION: An approach/return mechanism 40 having a configuration capable of advancing and reversing a forming punch to be forged, a punch drive mechanism 50 having a configuration to apply a forging forming force to the forming punch to be forged, and a plurality of forming punches. And a punch exchanging mechanism 60 having a structure capable of exchanging the punch die, and exchanging the forming punch in a mold clamped state by the lower die 21 and the upper die to obtain a forged product having at least one stepped hollow portion. Forge processing. [Selection diagram] Figure 1