公开(公告)号：US12226819B2

公开(公告)日：2025-02-18

申请号：US17288924

申请日：2020-04-08

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY ,  GUANGDONG HUAYI PLUMBING FITTINGS INDUSTRY CO., LTD. ,  SUN YAT-SEN UNIVERSITY CANCER CENTER

Inventor： Chao Yang ,  Haizhou Lu ,  Yanfei Ding ,  Yuanyuan Li ,  Jin Wang

IPC: B22F1/00 ,  B22F1/05 ,  B22F1/14 ,  B22F1/17 ,  B22F9/08 ,  B22F10/28 ,  B22F10/34 ,  B22F10/36 ,  B22F10/366 ,  B23K26/342 ,  B23K103/14 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/00 ,  C22C1/04 ,  C22C14/00 ,  C22C19/00 ,  C22C19/03

Abstract: The present invention belongs to the field of additive manufacturing technology, and discloses a 4D printing method capable of in-situ regulating functional properties of nickel-titanium (NiTi) alloys and the application thereof. The method comprises the following steps: subjecting NiTi alloy bars to atomization milling to obtain NiTi alloy powder with a particle size of 15-53 μm, placing the NiTi alloy powder in a discharge plasma assisted ball mill for discharge treatment to promote the activation of powder activity, then adding nano-sized Ni powder with a particle size of 100-800 nm to obtain mixed powder, then continuing the discharge treatment to realize the metallurgical bonding between the NiTi alloy powder and the nano-sized Ni powder to obtain the modified powder, and finally using the additive manufacturing technology to prepare and form the modified powder into a functionalized NiTi alloy. The present invention achieves the metallurgical bonding between the nano-sized Ni powder and the large-sized spherical NiTi alloy powder by adding the nano-sized Ni powder in the process of discharge treatment, which is conducive to preparing a bulk alloy with uniform composition, structure and properties and the parts made therewith.

公开(公告)号：US12214440B1

公开(公告)日：2025-02-04

申请号：US18612255

申请日：2024-03-21

Applicant: TAIYUAN UNIVERSITY OF TECHNOLOGY

Inventor： Jianchao Han ,  Junxin Wei ,  Shuaishuai Zhang ,  Zhenhao Yuan ,  Yizhi Zhang ,  Ran Li ,  Xinxin Liu ,  Yi Jia ,  Tao Wang

IPC: B23K20/00 ,  B23K20/04 ,  B23K20/16 ,  B23K20/233 ,  B23K20/24 ,  B23K101/18 ,  B23K101/34 ,  B23K103/08 ,  B23K103/14

Abstract: A magnesium/titanium composite plate with large thickness ratios and a gradient heterothermal rolling bonding method are provided by the present disclosure, relating to the technical field of rolling bonding plates. The method includes following steps: assembling blanks according to a sequence of titanium strip, transition layer foil and magnesium alloy plate to obtain a composite blank; carrying out induction heating treatment on one side of the titanium strip of the composite blank, then rolling, and carrying out heat treatment on a composite plate blank after rolling to obtain the magnesium/titanium composite plate with large thickness ratios; and a thickness ratio of the magnesium alloy plate to the titanium strip is greater than or equal to 20:1.

公开(公告)号：US12109649B2

公开(公告)日：2024-10-08

申请号：US16999814

申请日：2018-02-24

Applicant: SECRETARY, DEPARTMENT OF ATOMIC ENERGY

Inventor： Brahma Nand Upadhyaya ,  Pushkar Misra ,  Suresh Chandra Vishwakarma ,  Rajesh Arya ,  Srikant M. Oak ,  Purushottam Das Gupta

IPC: B23K26/21 ,  B23K26/32 ,  B23K103/14

CPC classification number: B23K26/21 ,  B23K26/32 ,  B23K2103/14

Abstract: An improved laser welding method of materials by means of long pulse and high energy pulses of solid state lasers in such a manner that large depth of penetration with full depth or partial depth of penetration can be achieved with minimum surface evaporation in first pass of laser beam and enhanced surface smoothness having average surface smoothness of 5 mm by second pass of laser beam of lower power density and inclined at a particular inclination.

公开(公告)号：US12097578B2

公开(公告)日：2024-09-24

申请号：US16719880

申请日：2019-12-18

Applicant: NORSK TITANIUM AS

Inventor： Trond Forseth ,  Brede Vigdal ,  Tom-Erik Falla ,  Dyre Rolstad ,  Arne Ramsland

IPC: B23K9/133 ,  B23K9/04 ,  B23K15/00 ,  B23K26/342 ,  B33Y40/00 ,  B65H49/32 ,  B65H51/10 ,  B65H59/38 ,  B21F23/00 ,  B23K103/14

CPC classification number: B23K9/133 ,  B23K9/044 ,  B23K9/1333 ,  B23K15/0006 ,  B23K26/342 ,  B33Y40/00 ,  B65H49/32 ,  B65H49/325 ,  B65H51/10 ,  B65H59/387 ,  B21F23/00 ,  B23K2103/14 ,  B65H2701/36

Abstract: Provided are a systems and methods for continuously providing a metal wire to a welding torch for manufacturing objects by solid freeform fabrication to provide continuous deposition of metal to the freeform object, especially objects made with titanium or titanium alloy wire.

公开(公告)号：US12084746B2

公开(公告)日：2024-09-10

申请号：US17288918

申请日：2020-01-03

Applicant: SOUTH CHINA UNIVERSITY OF TECHNOLOGY ,  GUANGDONG HUAYI PLUMBING FITTINGS INDUSTRY CO., LTD. ,  SUN YAT-SEN UNIVERSITY CANCER CENTER

Inventor： Chao Yang ,  Haizhou Lu ,  Yanfei Ding ,  Yuanyuan Li ,  Jin Wang

IPC: C22C19/03 ,  B22F1/14 ,  B22F9/08 ,  B23K26/342 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/00 ,  C22C1/04 ,  C22C19/00 ,  B22F10/28 ,  B22F10/34 ,  B22F10/36 ,  B23K103/14

CPC classification number: C22C19/03 ,  B22F1/14 ,  B22F9/082 ,  B23K26/342 ,  B33Y10/00 ,  B33Y40/10 ,  B33Y70/00 ,  C22C1/0433 ,  C22C19/007 ,  B22F2009/0836 ,  B22F10/28 ,  B22F10/34 ,  B22F10/36 ,  B22F2301/15 ,  B22F2304/10 ,  B23K2103/14 ,  B22F2998/10 ,  B22F2009/041 ,  B22F9/082 ,  B22F1/142 ,  B22F10/28

Abstract: Disclosed are a 4D printing method and application of titanium-nickel shape memory alloy. The 4D printing method comprises the following steps: mixing and smelting pure titanium and pure nickel to obtain titanium-nickel alloy bars, then preparing alloy powder by a rotating electrode atomization method, and sieving the powder to obtain titanium-nickel alloy powder with a particle size of 15-53 μm; placing the obtained titanium-nickel alloy powder in a discharge plasma assisted ball mill for discharge treatment to perform surface modification of the powder; and subjecting the titanium-nickel alloy powder to SLM forming to obtain the titanium-nickel shape memory alloy.

公开(公告)号：US20240253148A1

公开(公告)日：2024-08-01

申请号：US18597335

申请日：2024-03-06

Applicant: Ohio State Innovation Foundation

Inventor： Wei Zhang ,  Ying Lu ,  Luke Walker ,  Menachem Kimchi

IPC: B23K11/20 ,  B23K11/11 ,  B23K103/04 ,  B23K103/08 ,  B23K103/10 ,  B23K103/14 ,  B23K103/20 ,  B23K103/24

CPC classification number: B23K11/20 ,  B23K11/115 ,  B23K2103/04 ,  B23K2103/10 ,  B23K2103/14 ,  B23K2103/15 ,  B23K2103/20 ,  B23K2103/24

Abstract: An example method for joining metals is described herein. The method can include forming an intermediate joint between a light metal member and a metal insert, where the intermediate joint is formed using a solid state welding process. The method can also include forming a primary joint between the light metal member and a high strength steel member, where the primary joint is formed using a welding process that produces coalescence at a temperature above the melting point of the light metal member and/or the high-strength steel member.

公开(公告)号：US20240227061A1

公开(公告)日：2024-07-11

申请号：US18374434

申请日：2023-09-28

Applicant: Ohio State Innovation Foundation ,  University of Tennessee Research Foundation

Inventor： Marcelo Dapino ,  Leon Headings ,  Ningxiner Zhao ,  Suresh Babu ,  Michael Pagan ,  Steven Zinkle

IPC: B23K20/10 ,  B23K103/14 ,  B33Y10/00 ,  B33Y40/20 ,  C22F1/00 ,  C22F1/18

CPC classification number: B23K20/10 ,  B33Y10/00 ,  B33Y40/20 ,  C22F1/002 ,  C22F1/183 ,  B23K2103/14

Abstract: A method of welding a first layer of Ti alloy to a second layer of Ti alloy. The method includes disposing a metallic interlayer onto a first layer of Ti alloy, disposing the second layer of Ti alloy onto the metallic interlayer such that the metallic interlayer is disposed between the first layer of Ti alloy and the second layer of Ti alloy, and applying a horn of an ultrasonic device to the second layer of Ti alloy to weld the first layer of Ti alloy to the second layer of Ti alloy to form a welded material.

公开(公告)号：US12005522B2

公开(公告)日：2024-06-11

申请号：US16810084

申请日：2020-03-05

Applicant: Purdue Research Foundation

Inventor： Ramses Valentin Martinez ,  Debkalpa Goswami

IPC: B23K26/356 ,  B23K26/08 ,  B23K103/00 ,  B23K103/14 ,  C21D10/00

CPC classification number: B23K26/356 ,  B23K26/08 ,  C21D10/005 ,  B23K2103/14 ,  B23K2103/42 ,  B23K2103/52 ,  B23K2103/54

Abstract: The present disclosure relates to a novel continuous laser nanoforming device, and the methods to make and use the continuous laser nanoforming device.

公开(公告)号：US11958147B2

公开(公告)日：2024-04-16

申请号：US17111119

申请日：2020-12-03

Applicant: Airbus SAS ,  Airbus Operations SAS

Inventor： Benoit Marguet ,  César Garnier ,  Pascal Saccona

IPC: B23P15/26 ,  B23K11/08 ,  B23K37/06 ,  F28F21/08 ,  B23K101/14 ,  B23K103/14

CPC classification number: B23P15/26 ,  B23K11/08 ,  B23K37/06 ,  F28F21/086 ,  B23K2101/14 ,  B23K2103/14

Abstract: A manufacturing method for a plate comprising channels in which the method includes a step of superposing the two strips, a step of welding the two strips along the weld seams, a step of blocking the zones between the weld seams on one side of the strips, a pressurization step with a compressed fluid, where the zones between the weld seams open out along another side, to expand the strips, and a step of opening the zones blocked during the blocking step. This manufacturing method enables the titanium strips to be welded together and shaped by pressurization.

公开(公告)号：US11914165B2

公开(公告)日：2024-02-27

申请号：US17796506

申请日：2021-02-04

Applicant: JILIN UNIVERSITY

Inventor： Hongbo Sun ,  Zhenze Li ,  Qidai Chen

IPC: B23K26/0622 ,  B23K26/364 ,  B23K26/082 ,  B23K26/03 ,  B23K26/08 ,  B23K26/06 ,  B23K26/00 ,  G02B27/28 ,  G02B5/30 ,  H01S3/10 ,  B23K103/14 ,  B23K103/00 ,  G02B6/12

CPC classification number: G02B27/286 ,  B23K26/0006 ,  B23K26/032 ,  B23K26/0624 ,  B23K26/0643 ,  B23K26/0648 ,  B23K26/0652 ,  B23K26/082 ,  B23K26/0853 ,  B23K26/364 ,  G02B5/30 ,  G02B27/283 ,  H01S3/10061 ,  B23K2103/14 ,  B23K2103/54 ,  G02B2006/12116

Abstract: A method using femtosecond laser for nano precision preparation. Initial damage nanoholes formed by using femtosecond laser multiphoton excitation are used as a seed structure, and the energy and polarization state of subsequent laser pulses are adjusted in real time, such that uniform and directional optical near-field enhancement is generated near the seed structure and finally the high-precision removal of machined materials is realized. Benefiting from the high localization of near-field spot energy in space, the method uses femtosecond laser pulses having the wavelength of 800 nm to achieve a machining accuracy having the minimum linewidth of only 18 nm, and the linewidth resolution reaches 1/40 of the wavelength; and the method using femtosecond laser for nano precision preparation does not need a vacuum environment, having good air/solution machining compatibility.