公开(公告)号：US20230399716A1

公开(公告)日：2023-12-14

申请号：US18162605

申请日：2023-01-31

Applicant: TAIYUAN UNIVERSITY OF TECHNOLOGY

Inventor： Tao WANG ,  Haoran ZHANG ,  Qi LIU ,  Qingshan DING ,  Shufeng WEI ,  Wanwan FAN ,  Zhongkai REN

IPC: C21D10/00

CPC classification number: C21D10/00

Abstract: A pulse current processing apparatus includes a bidirectional tension and pulse current application apparatus, a real-time thin metal strip shape detection apparatus and a supporting base. In the apparatus, the tension is applied in the rolling direction and the transverse direction to effectively improve the strip shape flaws of the thin metal strip, and realize the rapid straightening of the thin metal strip; at the same time, the stress status of the thin metal strip is changed by applying the pulse current along the rolling direction or the transverse direction or applying different tensions in two directions; secondly, compared with the conventional heat-preservation heating and annealing apparatus, the pulse current can realize high-efficiency control of mechanical properties of the thin metal strip, and rapidly eliminate the internal stress; further, the strip shape is monitored by the laser ranging to ensure the strip shape consistency of the thin metal strip.

公开(公告)号：US20230243006A1

公开(公告)日：2023-08-03

申请号：US18004881

申请日：2021-05-26

Applicant: JFE STEEL CORPORATION

Inventor： Junya TOBATA ,  Kazuki ENDOH ,  Yuki TOJI

IPC: C21D3/06 ,  C21D7/13 ,  C21D10/00 ,  C21D7/02 ,  C21D9/46 ,  C21D9/08 ,  C21D9/52

CPC classification number: C21D3/06 ,  C21D7/13 ,  C21D10/00 ,  C21D7/02 ,  C21D9/46 ,  C21D9/08 ,  C21D9/52

Abstract: Provided is a dehydrogenation method capable of efficiently reducing hydrogen content in steel for thick or complexly-shaped steel materials and steel products in general. In a dehydrogenation method for a steel material, in a series of steel material production process including: a process of supplying a steel raw material; a process of subjecting the steel raw material to hot working; a process of inspecting a steel material obtained from the steel raw material; and a process of shipping the steel material, at least one of the steel raw material and the steel material at any stage from the supply process to the shipment process is subjected to, at least once, a sound wave irradiation treatment so that a sound pressure level at a surface of the at least one of the steel raw material and the steel material will be 30 dB or more.

公开(公告)号：US20230226639A1

公开(公告)日：2023-07-20

申请号：US18007808

申请日：2021-06-04

Applicant: HAMAMATSU PHOTONICS K.K.

Inventor： Takashi KURITA ,  Takeshi WATARI ,  Yuki KABEYA ,  Ryo YOSHIMURA

IPC: B23K26/0622 ,  B23K26/356 ,  C21D10/00

CPC classification number: B23K26/0622 ,  B23K26/356 ,  C21D10/005

Abstract: A processed product manufacturing method includes preparing a workpiece containing metal and forming a plurality of first regions and a second region along a surface of the workpiece by the irradiation of a laser beam. The first regions are applied with a tensile residual stress. In the second region applied with a compressive residual stress, a plurality of irradiation points separated from each other in the surface of the workpiece are irradiated with the laser beam. The first regions are formed to be separated from each other and each of the first regions is surrounded by the second region when viewed from a direction orthogonal to the surface.

公开(公告)号：US11692236B2

公开(公告)日：2023-07-04

申请号：US17565421

申请日：2021-12-29

Applicant: Jiangsu University

Inventor： Xiankai Meng ,  Yaomin Zhao ,  Jinzhong Lu ,  Jianzhong Zhou ,  Yanhu Zhang ,  Shu Huang ,  Jie Cai ,  Pengfei Li

IPC: C21D10/00 ,  F01D5/28

CPC classification number: C21D10/005 ,  F01D5/286 ,  G01N2291/0234

Abstract: The present invention provides a device for peening by coupling a laser shock wave and an ultrasonic shock wave in real time. The device includes a synchronization device, a laser device, two ultrasonic shock devices, a working platform and a control system. An upper casing is supported above a base through second hydraulic cylinders. Two supporting beams are provided under the upper casing through the second hydraulic cylinders. Limiting slide rails are provided under the upper casing through first hydraulic cylinders. The two ultrasonic shock devices are connected through the synchronization device, which is configured to synchronize movement and rotation of the two ultrasonic shock devices. The laser device is configured to generate a laser beam to pass through the upper casing and irradiate a surface of a workpiece. The control system controls the laser device to lag behind the two ultrasonic shock devices to perform laser shock.

公开(公告)号：US11685983B2

公开(公告)日：2023-06-27

申请号：US16504621

申请日：2019-07-08

Applicant: Terves, LLC

Inventor： Andrew J. Sherman ,  Nicholas Farkas

IPC: C23F1/06 ,  C22C23/00 ,  C22F1/06 ,  C21D10/00 ,  B82Y30/00 ,  E02D27/38 ,  C22C23/02 ,  C22C49/04 ,  B22D27/00 ,  B22D27/08 ,  B22D19/14 ,  B22D27/11 ,  C22C1/03 ,  B22D27/02 ,  C22C23/06 ,  C22C26/00 ,  C22C1/04 ,  B22D21/00 ,  C22C47/08 ,  B22D25/06 ,  B22D23/06 ,  B22D21/04 ,  C22C49/02 ,  B22F1/062 ,  C22C1/10

CPC classification number: C22F1/06 ,  B22D19/14 ,  B22D21/007 ,  B22D21/04 ,  B22D23/06 ,  B22D25/06 ,  B22D27/00 ,  B22D27/02 ,  B22D27/08 ,  B22D27/11 ,  B82Y30/00 ,  C21D10/00 ,  C22C1/03 ,  C22C1/0408 ,  C22C23/00 ,  C22C23/02 ,  C22C23/06 ,  C22C26/00 ,  C22C47/08 ,  C22C49/04 ,  E02D27/38 ,  B22F1/062 ,  B22F2998/10 ,  B22F2999/00 ,  C22C1/1047 ,  C22C49/02 ,  C22C2026/002 ,  B22F2999/00 ,  C22C47/08 ,  B22F2202/01 ,  B22F2999/00 ,  C22C1/0408 ,  C22C2026/002 ,  B22F2998/10 ,  C22C1/1047 ,  B22F1/054 ,  B22F2998/10 ,  C22C1/1047 ,  B22F1/0547 ,  B22F2998/10 ,  C22C1/1047 ,  B22F1/0551 ,  B22F2998/10 ,  B22F1/0551 ,  C22C1/1047 ,  B22F2998/10 ,  B22F1/0547 ,  C22C1/1047 ,  B22F2998/10 ,  B22F1/054 ,  C22C1/1047

Abstract: A castable, moldable, or extrudable magnesium-based alloy that includes one or more insoluble additives. The insoluble additives can be used to enhance the mechanical properties of the structure, such as ductility and/or tensile strength. The final structure can be enhanced by heat treatment, as well as deformation processing such as extrusion, forging, or rolling, to further improve the strength of the final structure as compared to the non-enhanced structure. The magnesium-based composite has improved thermal and mechanical properties by the modification of grain boundary properties through the addition of insoluble nanoparticles to the magnesium alloys. The magnesium-based composite can have a thermal conductivity that is greater than 180 W/m-K, and/or ductility exceeding 15-20% elongation to failure.

公开(公告)号：US20230026583A1

公开(公告)日：2023-01-26

申请号：US17865732

申请日：2022-07-15

Applicant: SEIKO EPSON CORPORATION

Inventor： Hiromu MIYAZAWA ,  Kinya OZAWA

IPC: H01F1/147 ,  C22C38/02 ,  C21D10/00

Abstract: A soft magnetic alloy ribbon is made of a Fe-based soft magnetic alloy and includes a first laser peening trace row and a second laser peening trace row each of which includes a plurality of laser peening traces in a row in a first direction and which are arranged adjacent to each other in a second direction intersecting the first direction, and a domain wall extending in a third direction, in which D0

公开(公告)号：US20220325372A1

公开(公告)日：2022-10-13

申请号：US17639766

申请日：2020-09-02

Applicant: SAFRAN AIRCRAFT ENGINES

Inventor： Elliott Archibald BREITTMAYER ,  David GARDY ,  Jocelyn BASTIDE

IPC: C21D10/00 ,  G01B11/10 ,  G01B7/12

Abstract: A method for relieving residual stresses in a part includes increasing the rotation speed, which includes measuring, at a first given instant, values representative of the rotation speed and the radial enlargement; measuring, at a second given instant after the first instant, values representative of the rotation speed and the radial enlargement; determining a leading coefficient of a first affine function from the preceding values; determining a target radial enlargement value as a function of a value representative of the rotation speed, in the form of a second affine function, the origin of which is the value of a desired final residual enlargement and the leading coefficient of which is the leading coefficient of the first affine function; stopping the increase in rotation speed of the part from the moment that the actual enlargement of the rotating part corresponds to the target relative radial enlargement value that has been determined.

公开(公告)号：US20220205060A1

公开(公告)日：2022-06-30

申请号：US17695716

申请日：2022-03-15

Applicant: LSP Technologies, inc.

Inventor： Stanley C. Bovid ,  David F. Lahrman ,  Jeff L. Dulaney

IPC: C21D10/00

Abstract: A method for imparting a predetermined surface contour to a part is provided, the method comprising: identifying a compressive residual stress profile for providing the part with the predetermined surface contour; and laser peening a surface of the part in a treatment mode predetermined with reference to the identified compressive residual stress profile, thereby inducing plastic deformation in the part and thereby imparting a predetermined surface contour to the part that is a different surface contour than the part had prior to the laser peening.

公开(公告)号：US20220162723A1

公开(公告)日：2022-05-26

申请号：US17441569

申请日：2020-03-02

Applicant: OSAKA UNIVERSITY

Inventor： Hidetoshi Fujii ,  Yoshiaki Morisada ,  Yasuhiro Aoki

IPC: C21D10/00 ,  B23K20/12 ,  C22C38/16 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00

Abstract: Provided are an effective and simple surface-modifying method for prolonging the life of a steel structure made of a steel material having a high sulfur (S) content, and a steel structure having a life prolonged by the surface-modifying method. A surface-modifying method for forming a friction stir region on the surface of a steel material by friction stir processing, wherein a sulfur (S) content of the steel material is 200 ppm or more.

公开(公告)号：US20220081742A1

公开(公告)日：2022-03-17

申请号：US17472476

申请日：2021-09-10

Applicant: Industry-Academic Cooperation Foundation, Yonsei University

Inventor： Dong Hyun BAE

IPC: C22C21/10 ,  H01M50/119 ,  C21D10/00

Abstract: There are a composite material including an aluminum-based matrix and a device adopting the same. The composite material including an aluminum-based matrix may include an aluminum-based matrix including a plurality of grains, wherein each of the grains has a plurality of sub-grains; and a self-organized phase present at a sub-grain boundary between the plurality of sub-grains, wherein the self-organized phase has a band structure and includes a solid solution of aluminum and a non-metal element. The sub-grains and the self-organized phase coming into contact with the sub-grains may form a substantially coherent interface. A plurality of dislocations spaced apart from each other may be provided along the coherent interface.