MOLDING DIE AND MOLDING METHOD

• Main Authors: SAKAI HIDEO, TAMURA YOSHIKI, MARUYAMA TSUNEO
• Format: Patent
• Language: English; Japanese
• Published: 22.02.2018
• Subjects: CASTING; MAKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; PERFORMING OPERATIONS; POWDER METALLURGY; PRESSES; PRESSES IN GENERAL; TRANSPORTING; WORKING METALLIC POWDER

PROBLEM TO BE SOLVED: To provide a molding die which can mold an undercut shape portion in a molded body with high accuracy without displacement, and to provide a molding method using the same.SOLUTION: A molding die has a first die having a through hole, a second die which is inserted into the through hole and can be relatively moved to the first die, and a first punch and a second punch capable of inserted into the through hole, where a cavity, which is surrounded by the second die, the first punch and the second punch and compresses and molds an article to be molded, is formed in the through hole, an undercut molding section is formed on a surface facing the cavity of the second die, and the second die is formed so as to be capable of divided into two or more.SELECTED DRAWING: Figure 1 【課題】成型体にアンダーカット形状部を位置ズレすることなく高精度に成型可能な成型金型、およびこれを用いた成型方法を提供する。【解決手段】貫通孔を有する第１ダイと、前記貫通孔に挿入され、前記第１ダイに対して相対移動が可能な第２ダイと、前記貫通孔にそれぞれ挿入可能な第１パンチおよび第２パンチと、を備え、前記貫通孔内には、前記第２ダイ、前記第１パンチおよび前記第２パンチで囲まれ、被成型物を圧縮成型するキャビティが形成され、前記第２ダイの前記キャビティに臨む面にはアンダーカット成型部が形成され、前記第２ダイは、２分割以上に分割可能に形成されている。【選択図】図１