The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 05, 2023
Filed:
Mar. 29, 2019
Nippon Steel Corporation, Tokyo, JP;
Masahiko Sato, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
The present invention has as its object to provide a method for manufacturing a shaped part able to suppress the occurrence of shaping defects when manufacturing a tubular shaped part. The above object is achieved by providing a method for manufacturing a shaped part comprising a first bending process of press-forming a metal sheet to obtain a curved intermediate part curved in a longitudinal direction by a curvature α, a U-process of press-forming the curved intermediate part into an approximately U-section to obtain a first curved U-section intermediate part provided with a bottom part having the curvature α, and an O-process of press-forming the first curved U-section intermediate part to form a closed cross-section to obtain a tubular shaped part provided with a bottom part having the curvature α.