MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202617072648 A) filed by Jfe Steel Corporation on June 11, 2026, for Method For Manufacturing Press-Formed Article.
Inventor includes Tobita Shunsuke.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: The present invention provides a press-forming method capable of reducing generation of wrinkles and stably obtaining a press- formed article with a simple die structure. Provided is a method for manufacturing a press-formed article having a target component shape (1) with a cross-section including a top plate part (1A) and a vertical wall part (1B), the top plate part (1A) having a curved part (2), which is curved to protrude toward the outer surface side of the top plate part (1A), at an intermediate portion in the longitudinal direction. The method comprises: a first step (11) for press-forming an intermediate component (13) using a die having a top plate forming surface (30A), a vertical wall upper part forming surface (30Ba) for forming an upper part of the vertical wall part (1B), and a vertical wall lower part forming surface (30Bb); and a second step (12) for press-forming the intermediate component (13) into the target component shape. An angle of the vertical wall lower part forming surface (30Bb) with respect to the top plate forming surface (30A) is larger than an angle of the vertical wall upper part forming surface (30Ba) with respect to the top plate forming surface (30A), and the top plate forming surface (30A) has a forming surface for forming the curved part (2), curved along the longitudinal direction at an intermediate portion in the longitudinal direction.
Disclaimer: Curated by HT Syndication.
