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This is a record of a document published elsewhere, first published by the United States Patent and Trademark Office, as US-12576443-B2, on 17 March 2026. OpenTechnical did not first disclose it. The identifier, hashes and timestamps below record what this library served and when, not when the material became public. View the original.

OT-2026-000001880

Method of manufacturing press-formed product, apparatus for transporting heated workpiece, and hot-press manufacturing line

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Permanent URL
Classification
Manufacturing & Assembly Equipment › Machining Systems
Inventors
HAMADA KOICHI, NOMURA NARUHIKO, SUZUKI TOSHIYA, TATSUMI YUJIRO
Assignee
NIPPON STEEL CORP
Original source
US-12576443-B2, the United States Patent and Trademark Office, 17 March 2026
Document SHA-256
3d9577edf55db2621982880c65cc607b0521578bfe972bba8f2f2466feeed7a3

Abstract

A method of manufacturing a press-formed product includes: a heating step; a transportation step; and a pressing step. The transportation step includes: using claws of a pair of first arms to support the lower surface, at both ends, of a first heated workpiece and lift the workpiece; using claws of a pair of second arms to support the lower surface, at both ends, of a second heated workpiece and lift the workpiece; transporting the first heated workpiece with the lower surface supported, at both ends, by the claws of the pair of first arms and the second heated workpiece with the lower surface supported, at both ends, by the claws of the pair of second arms, where the first and second heated workpieces overlap each other in the direction normal to the sheet surfaces; driving the pair of first arms to lower the first heated workpiece to a pressing location on a press machine; and driving the pair of second arms to lower the second heated workpiece to a pressing location on the press machine.

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Citation

OpenTechnical Publication OT-2026-000001880, “Method of manufacturing press-formed product, apparatus for transporting heated workpiece, and hot-press manufacturing line,” published September 15, 2026 at 19:09:15 UTC, https://opentechnical.org/p/OT-2026-000001880.

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