B - Operations – Transporting – 21 – D
Patent
B - Operations, Transporting
21
D
B21D 22/00 (2006.01) G06F 17/50 (2006.01)
Patent
CA 2662109
A springback occurrence cause identifying method comprising a press-forming analyzing step of numerically analyzing the press-forming condition of press forming and acquiring forming data on a press-formed product, a computing step of computing at least one item of data on the physical properties and physical quantities of a partial region of the press-formed product out of the forming data, and a springback amount calculating step of calculating the amount of springback by using the results of the computation.
La présente invention concerne un procédé d'identification de la cause d'occurrence de retour élastique comprenant les étapes consistant à analyser numériquement la condition du formage sous pression et à faire l'acquisition des données de formage sur un produit formé sous pression, à calculer au moins un élément de données des propriétés physiques et des quantités physiques d'une région partielle du produit formé sous pression parmi les données de formage et à calculer la quantité de retour élastique en utilisant les résultats du calcul.
Ariga Takashi
Daimaru Seiichi
Hiwatashi Shunji
Kuriyama Yukihisa
Niwa Toshiyuki
Goudreau Gage Dubuc
Nippon Steel Corporation
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