PRESS TOOL AND PRESS MOLDING METHOD

PROBLEM TO BE SOLVED: To provide a press tool and a press molding method which increase or decrease a crease restraining force in one forming process and further can increase or decrease the crease restraining force in each place, by devising a mold, instead of using an expensive pressing machine wi...

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Bibliographische Detailangaben
Hauptverfasser:	TANIGUCHI YUICHI, KATAYAMA TOMOHISA
Format:	Patent
Sprache:	eng
Schlagworte:	MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PUNCHING METAL TRANSPORTING WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS ORPROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a press tool and a press molding method which increase or decrease a crease restraining force in one forming process and further can increase or decrease the crease restraining force in each place, by devising a mold, instead of using an expensive pressing machine with a crease restraining force controller. SOLUTION: In a press tool comprising a punch 3, a die 1 and a crease restrainer 2, a pressure cylinder 5 is installed as a mechanism for generating the crease restraining force in addition to a cushion pin. The pressure cylinder 5 is set in the range of 0.5(dc+D)