Patent ID: 9586256
Date: 2017-03-07
CPC Classifications: B21J,C22C,C22F

Claim:
1. A forging method comprising: a placement step of placing a work having a first shape which is a rectangular hexahedron in a work space of a forging die, the forging die comprising the work space having a rectangular opening, being formed by rectangular plane wall portions, and being provided for holding the work, a substantially vertically-slidable upper die indenter, and a substantially-horizontally slidable pedestal portion defining a bottom of the work space, wherein a space communicating to outside of the work space is formed by sliding the pedestal portion; and a working step of applying, with the upper die indenter and the pedestal portion, a plastic strain to the work by deforming the placed work into a second shape which is a rectangular hexahedron, wherein placing the work in the work space of the forging die and applying, with the upper die indenter and the slidable pedestal portion of the plastic strain at least two times deforms the work in the x-axis direction, the y-axis direction, and the z-axis direction.