Abstract: Each of a plurality of divided dies (11, 12) has a divided surface (111, 121) and a defining surface (112, 122) which defines a cavity 100. The divided surface has an inclined divided surface (1112, 1212) inclined with respect to the translational direction, and at least one pair of perpendicular divided surfaces (1112, 1113, 1211, 1213) which is disposed on the opposite side based on the defining surface and is perpendicular to the translational direction. Each of the plurality of divided dies (11) and (12), while abutting against each other at, at least the at least one pair of perpendicular divided surfaces of the divided surface, abuts against each other in a state of being spaced apart from each other with a gap d within a range of 1 to 30 ?m at the inclined divided surface (1112, 1212), thereby forming the cavity 100.

Abstract: A die apparatus capable of removing powder adhering to cut surfaces so as to securely form a cavity in a desired shape includes divided dies reciprocatingly driven by sliders to comes into contact with one another so as to form a cavity. Punches are inserted into the cavity from above and below the cavity. Each divided die is provided with cut surfaces that come into contact with the other divided dies. A gas passage connected to a gas injection port that injects gas from the cut surface is formed in each divided die.

Abstract: Provided is a mold device which forms a cavity of a predetermined shape, even if timing of reaching a predetermined position for forming the cavity is different among dies, due to a difference in advancing speed among the dies. A die segment 3a butts against a pair of die segments 3b and 3c at a first parting surface 4 and a second parting surface 5, respectively. In the first parting surface 4, a longitudinally protruding part 6 which is locally protruding is formed, and thereby a first guide surface 9 which extends parallel to a travel direction of the die segment 3b is formed. In the second parting surface 5 of the die segment 3b, a longitudinally recessed part 7 which is locally recessed is formed, and thereby a second guide surface 10 which butts against the first guide surface 9 of the die segment 3a is formed.

Abstract: Provided is a die apparatus capable of removing powder adhering to cut surfaces so as to securely form a cavity in a desired shape. Each divided die 4i reciprocatingly driven by each slider 6i (i=a, b, c) comes into contact with one another so as to form the cavity 3. Punches 7a and 7b are inserted into the cavity 3 from above and below of the cavity 3. Each divided die 4i is provided with cut surfaces 11j (j=a, b) that come into contact with the other divided dies. A gas passage 16j connected to a gas injection port 12j that injects gas from the cut surface 11j is formed in each divided die 4i.