Abstract: The invention provides a molding die in which a whole or a part of an exclusive portion forming a cavity can be swiftly changed while leaving a general portion in a molding machine. A fixed insert, a movable insert, a pressing plate and a slide core which correspond to an exclusive portion can be automatically attached to and detached from a fixed main die, a movable main die, a pressing rod and a slide holder which correspond to a general portion by an attaching and detaching mechanism. Further, the fixed insert, the movable insert, the pressing plate and the slide core can be integrated in a die close state by a connection mechanism.

Abstract: The invention provides a molding die in which a whole or a part of an exclusive portion forming a cavity can be swiftly changed while leaving a general portion in a molding machine. A fixed insert, a movable insert, a pressing plate and a slide core which correspond to an exclusive portion can be automatically attached to and detached from a fixed main die, a movable main die, a pressing rod and a slide holder which correspond to a general portion by an attaching and detaching mechanism. Further, the fixed insert, the movable insert, the pressing plate and the slide core can be integrated in a die close state by a connection mechanism.

Abstract: A cavity defined by a casting mold is filled with a molten metal in such a condition that a sliding member movable forward and rearward has been moved into the cavity. The sliding member is drawn out of the cavity when the molten metal solidifies to such a degree as to maintain a certain shape. A separate member to be force-fitted is placed between the distal end of the sliding member and the cavity. The sliding member is then advanced into the cavity so that the separate member is force-fitted into a concave portion formed in the casting before the casting mold enclosing the casting is opened. The separate member is thus force-fitted into the casting while the casting is enclosed in the casting mold.