A long formed article made of one steel sheet includes a top sheet portion extending in a longitudinal direction, a standing wall portion extending downward from each of both edges of the top sheet portion in a width direction, and a protrusion portion formed in a portion of the top sheet portion in the longitudinal direction by overlapping a portion extending toward an outside from each of both ends of the top sheet portion in the width direction and a portion extending toward the outside from an upper end of the standing wall portion, in a non-protrusion region, a recessed part extending in the longitudinal direction is formed in the top sheet portion, and a total value α of inner surface peripheral lengths of the top sheet portion and the standing wall portion in a cross section of the formed article perpendicular to the longitudinal direction in a protrusion region and a total value β of inner surface peripheral lengths of the top sheet portion, the standing wall portion, and the recessed part in the cross section of the formed article perpendicular to the longitudinal direction in the non-protrusion region satisfy 1.01 ≤ β/α ≤ 1.50.
MOLDED PRODUCT, STRUCTURAL MEMBER USING SAME, AND MOLDED PRODUCT MANUFACTURING METHOD
GEFORMTES PRODUKT, STRUKTURELLES ELEMENT, DAS DASSELBE VERWENDET, UND HERSTELLUNGSVERFAHREN DES GEFORMTEN PRODUKTS
PRODUIT MOULÉ, ÉLÉMENT STRUCTURAL L'UTILISANT, ET PROCÉDÉ DE FABRICATION DE PRODUIT MOULÉ
2025-03-05
Patent
Electronic Resource
English
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