| 摘要 |
PROBLEM TO BE SOLVED: To provide a method, when molding a molded body having a projecting part reaching a top part via an inclined face rising from one end face, and having a plurality of groove parts extending almost in parallel with the end face opposite to the above one end face over one side face to the opposite side face, for forming dimensions of the groove parts and the top part of the projecting part with high precision. SOLUTION: The raw material powder is subjected to compression molding by the upper and lower first punches, by using a molding die device constituted of: a fixed die 210 in which a plurality of groove parts 212, corresponding to the above groove parts of the molded body, extending almost in parallel with one another and having a die hole; a movable die 220 in which recessed parts 222 corresponding to the projecting parts of the molded body are formed at the side faces opposite to the fixed die, and which is freely slidably fitted into the die hole of the fixed die; and upper and lower first punches 310, 410 on the groove part side in the fixed die and upper and lower second punches 320, 420 on the fixed die side freely slidably suitable for a space formed between the fixed die and the movable die. Thereafter, compression molding is performed by the upper and lower second punches. COPYRIGHT: (C)2011,JPO&INPIT |
