Patent ID: 9266166
Filing Date: 2016-02-23
CPC Classification: B21D,B21K,F01D,Y10T

Claim Text:
1. An apparatus for manufacturing a blade of an impeller rotatably mounted on a turbo fluid machine by performing a plastic deformation of a metal plate blank material, the apparatus comprising: at least a first ram and a second ram arranged for independently displacing and pressurizing; a die operatively connected to the first ram and arranged for restraining the blank material under pressure applied by the first ram; a punch that is operatively connected to the second ram and deforms the blank material by a displacement of the second ram while keeping a portion of the blank material protruding from the die clamped; a first rotational mechanism that is operatively connected to the second ram; a punch support that is operatively connected to the first rotational mechanism and tilts the punch via the first rotational mechanism in a first direction; a second rotational mechanism that is operatively connected to the die and tilts the die and the punch relatively in a second direction that is perpendicular to the first direction; and an actuator that is operatively connected to the first and second rotational mechanisms for controlling angles of rotation of the first and second rotational mechanisms, and wherein axes of rotation of the first and second rotational mechanisms are disposed to be perpendicular to each other to apply a predetermined deformation to the blank material in accordance with the displacement and the tilt of the die and the punch under controls of the first and second rams, and the actuator.