Abstract: A set of dies are composed in order to remove excess metal from a casting with a press. A method of removing the excess metal from the casting includes the steps of attaching a cutter to one of the stationary die side or the movable die side; setting a work on the other side; and punching excess metal of the work into a recess shape by one punching motion of the movable die with a plurality of blades from the first blade, which is smaller, to the final blade, which is larger and protruded, when the excess metal of the work is removed by a punching motion of the movable die conducted on the stationary die. A cutter includes a row of blades in which a plurality of blades are arranged step-wise having a change in the form from the first blade, which is smaller than the final shape of the excess metal to be punched, to the final blade, the shape of which is the same as the final shape.

Abstract: A set of dies are composed in order to remove excess metal from a casting with a press. A method of removing the excess metal from the casting includes the steps of attaching a cutter to one of the stationary die side or the movable die side; setting a work on the other side; and punching excess metal of the work into a recess shape by one punching motion of the movable die with a plurality of blades from the first blade, which is smaller, to the final blade, which is larger and protruded, when the excess metal of the work is removed by a punching motion of the movable die conducted on the stationary die. A cutter includes a row of blades in which a plurality of blades are arranged step-wise having a change in the form from the first blade, which is smaller than the final shape of the excess metal to be punched, to the final blade, the shape of which is the same as the final shape.

Abstract: A set of dies are composed in order to remove excess metal from a casting with a press. A method of removing the excess metal from the casting includes the steps of: attaching a cutter to one of the stationary die side or the movable die side; setting a work on the other side; and punching excess metal of the work into a recess shape by one punching motion of the movable die with a plurality of blades from the first blade, which is smaller, to the final blade, which is larger and protruded, when the excess metal of the work is removed by a punching motion of the movable die conducted on the stationary die.