公开(公告)号：US11504758B2

公开(公告)日：2022-11-22

申请号：US17041307

申请日：2019-02-14

Applicant: MAZDA MOTOR CORPORATION

Inventor： Naoyuki Irie ,  Ichirou Ino ,  Yoshihide Hirao ,  Chie Okawa

IPC: B21D22/02 ,  C21D1/673

Abstract: A hot press processing apparatus 1 includes: a heating step of heating a workpiece W; a pressing step of press-molding, by an upper die 11 and a lower die 12, the workpiece W heated in the heating step after loading the workpiece W between the upper die 11 and the lower die 12; and a cooling step of bringing the coolant into contact with a front surface of the workpiece W that is molded and placed in a pressed state by the pressing step, to thereby cool the workpiece W and place the workpiece W in a quenched state. In the hot press processing apparatus 1, the workpiece W molded and placed in the pressed state by the pressing step forms gaps c2 with respect to both of the upper die 11 and the lower die 12 so as to allow deformation at time of the cooling step except for an accuracy-guaranteed section Wr in the workpiece W.

公开(公告)号：US11504757B2

公开(公告)日：2022-11-22

申请号：US16179954

申请日：2018-11-04

Applicant: Hyundai Motor Company ,  Kia Motors Corporation

Inventor： Youn-Il Jung

IPC: B21D22/02 ,  B21D37/16 ,  B21D22/20

Abstract: An apparatus for forming an aluminum plate is provided. The apparatus includes an upper die that has a bottom surface that corresponds to a top shape of a product shape to be formed and descends by a press to press the aluminum plate. The apparatus also includes a lower die that has an upper surface that corresponds to a bottom shape of the product shape and an electrode unit that is inserted into the lower die and is exposed on the upper surface of the lower die to apply a current to a bent portion of the product shape.

公开(公告)号：US11498107B2

公开(公告)日：2022-11-15

申请号：US16636861

申请日：2018-09-10

Applicant: NIPPON STEEL CORPORATION

Inventor： Masahiko Sato ,  Masaaki Mizumura

IPC: B21D22/02 ,  B21D53/88 ,  B21D22/26 ,  B21D37/10 ,  B60G9/04

Abstract: This torsion beam manufacturing method is for manufacturing a torsion beam including a central portion of which a cross-section orthogonal to a longitudinal direction is a closed cross-section having a substantial V-shape or a substantial U-shape at any position in the longitudinal direction, and a shape changing portion which has a connection region leading to the central portion and including a closed cross-section having a shape different from the shape of the closed cross-section of the central portion.
This torsion beam manufacturing method has a compression step of thickening at least the connection region through application of a compression force in the longitudinal direction to at least the connection region of a torsion beam material to obtain the torsion beam, the torsion beam material being formed with the central portion and the shape changing portion.

公开(公告)号：US11479837B2

公开(公告)日：2022-10-25

申请号：US15716577

申请日：2017-09-27

Applicant: Novelis Inc.

Inventor： David Michael Custers

IPC: C22F1/04 ,  B21C47/18 ,  B21C47/34 ,  H05B6/10 ,  B21C47/16 ,  B65H29/00 ,  B65H29/20 ,  B21D22/02 ,  B21D37/16 ,  C21D1/42 ,  F27D99/00 ,  H05B6/32 ,  H05B6/36 ,  B21B39/02 ,  B21B39/34 ,  B21C37/02 ,  C21D1/04 ,  C22C21/02 ,  C22C21/06 ,  C22C21/10 ,  C22C21/12 ,  B65G54/02 ,  C22F1/02 ,  H02N15/00 ,  F27D19/00

Abstract: Systems and methods of pre-ageing of a metal strip during metal processing include passing the metal strip adjacent a magnetic rotor of a reheater. The systems and methods also include heating the metal strip through the magnetic rotor by rotating the magnetic rotor. Rotating the magnetic rotor induces a magnetic field into the metal strip such that the metal strip is heated.

公开(公告)号：US11478877B2

公开(公告)日：2022-10-25

申请号：US16334315

申请日：2017-09-19

Applicant: AUTOTECH ENGINEERING, S.L.

Inventor： Ricardo Molina Mesa ,  Oscar Bertolin Pradas

IPC: B23K26/342 ,  B23K26/00 ,  C23C24/10 ,  C23C26/02 ,  B23K26/144 ,  B23K9/04 ,  B23K103/04 ,  C21D1/673 ,  B22F7/08 ,  B23K9/23 ,  B23K26/348 ,  B23K9/16 ,  B33Y10/00 ,  B22F10/20 ,  B21D22/02 ,  B23K101/00 ,  B23K101/18

Abstract: A method for manufacturing structural steel components with local reinforcement is provided. The method comprises selecting at least a zone of the component to be reinforced, providing a steel blank and deforming the blank in a press tool to form a product, wherein the blank and/or the product comprises a groove in the zone to be reinforced, the groove comprising an inner surface and an outer surface. The method further comprises depositing a reinforcement material on the inner surface of groove and locally heating the reinforcement material and the groove of the steel blank or product, to mix the melted reinforcement material with the melted portion of the steel blank or product.

公开(公告)号：US11471928B2

公开(公告)日：2022-10-18

申请号：US17540276

申请日：2021-12-02

Applicant: TOPRE CORPORATION

Inventor： Satoshi Fujimoto ,  Shu Kato

IPC: B21D43/00 ,  B21D22/02

Abstract: A positioning device for hot stamping includes a pilot pin and a driving mechanism for driving the pilot pin. Before a plate material is placed into a press die, when the driving mechanism positions the pilot pin at a predetermined projecting position, a tip portion of the pilot pin projects from a pin guide hole and a body portion of the pilot pin formed further toward a base end side than the tip portion projects from the pin guide hole. Before a process in which the press die removes heat from the plate material after having been press-formed by the press die, when the driving mechanism positions the pilot pin at a predetermined immersed position, the body portion of the pilot pin is immersed in the pin guide hole while only the tip portion of the pilot pin projects from the pin guide hole.

公开(公告)号：US11471925B2

公开(公告)日：2022-10-18

申请号：US15097320

申请日：2016-04-13

Applicant: Venugopal Garimella ,  Darren Womack ,  Erryn Ashmore ,  Tom Sanor ,  Edward Schleichert ,  Tarlok Singh Kainth ,  Tracy Arnold Grant Taylor ,  James Arminski ,  Kevin VanDenBrouck

Inventor： Venugopal Garimella ,  Darren Womack ,  Erryn Ashmore ,  Tom Sanor ,  Edward Schleichert ,  Tarlok Singh Kainth ,  Tracy Arnold Grant Taylor ,  James Arminski ,  Kevin VanDenBrouck

IPC: F27B3/04 ,  B21D22/02 ,  C22F1/04 ,  F27B9/02 ,  C21D9/00 ,  F27B9/30 ,  F27B9/24 ,  F27D3/00 ,  F27D5/00 ,  F27D13/00 ,  F27D15/00 ,  F27B1/02

Abstract: A multi-opening oven assembly for simultaneously heating a plurality of blanks, for example aluminum blanks, before forming the heated blanks in a production line is provided. The oven assembly includes vertically aligned shelves to present a plurality of chambers for heating the blanks. A table including an entry side platform and an exit side platform moves vertically along the oven assembly. A rail system extends along the platforms and the shelves to convey the blanks in and out of the chambers. Once one set of heated blanks is removed from a first chamber, the table moves vertically to a second chamber and is ready to receive the next set of heated blanks. A continuous supply of heated blanks is provided for high throughput. The oven assembly is preferably disposed in a press adjacent a forming station of an existing production line and thus, no additional floor space is required.

公开(公告)号：US20220325370A1

公开(公告)日：2022-10-13

申请号：US17842837

申请日：2022-06-17

Applicant: IRONOVATION MATERIALS TECHNOLOGY CO., LTD.

Inventor： Hongliang YI ,  Zhiyuan CHANG ,  Zhaoyuan LIU ,  Dapeng YANG ,  Xiaochuan XIONG

IPC: C21D9/46 ,  B21D22/02 ,  B32B15/01 ,  C21D1/34 ,  C21D6/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/28 ,  C22C38/32

Abstract: The present invention relates to a hot stamped component, a precoated steel sheet used for hot stamping, and a hot stamping process. The hot stamped component of the present invention is provided with a coating of aluminium or an aluminium alloy on at least one surface of the base steel, the coating is produced by interdiffusion between the base steel and a precoating of aluminium or aluminium alloy, and the coating has a thickness of 6 to 26 μm.

公开(公告)号：US11440073B2

公开(公告)日：2022-09-13

申请号：US16866172

申请日：2020-05-04

Applicant: FIGUR MACHINE TOOLS LLC

Inventor： Justin Michael Nardone

IPC: B21D22/02 ,  B21D22/26 ,  B21D22/22

Abstract: The present invention is directed to a dual sided incremental sheet forming apparatus and method for incrementally forming sheet materials such as sheet metal by utilizing opposed primary and secondary forming tool assemblies and a sheet feeding assembly. The primary forming tool assembly includes a rigid tool and the secondary forming tool assembly includes a compressible and resilient backing layer having either a cylindrical or flat configuration. The sheet feeding assembly positions the sheet material between the two forming tools. The rigid tool applies force to one surface of the sheet material while the resilient backing tool applies counter force to the opposite surface of the work piece as it supports the work piece. This dual sided process localizes the forces on the sheet material so that stresses are advantageously controlled to produce accurately formed asymmetric shapes, without the need for expensive dies. The use of a rigid tool with an opposed resilient backing tool both having linear independent motion also avoids potential wrinkling and tearing of the resulting work piece and enables the formation of numerous, highly detained asymmetric products.

公开(公告)号：US20220266617A1

公开(公告)日：2022-08-25

申请号：US17627031

申请日：2020-08-04

Applicant: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

Inventor： Thomas Härtling ,  Christoph Zeh ,  Björn Erik Mai ,  Manuela Heymann

IPC: B41M5/00 ,  B41M7/00 ,  C21D7/06 ,  C23F1/02 ,  B21D22/02 ,  B24C1/08

Abstract: In an embodiment a method includes providing a workpiece, attaching a marking to the workpiece such that the marking is integrally bonded to the workpiece, wherein attaching the marking includes applying at least one raw material for the marking, heating the workpiece with the at least one raw material such that the marking is formed from the at least one raw material and performing a surface treatment of the workpiece at least in an area with the marking, wherein performing the surface treatment includes shot peening, sand blasting or material-removing etching against which the marking is resistant to, wherein the marking remains readable on the workpiece at least until after performing the surface treatment, and wherein the marking has, in at least a part of a near ultraviolet, a visible and/or a near-infrared spectral range relative to the workpiece, at least one of a degree of reflection difference, a reflectance difference or an albedo difference of at least 10 percentage points.