公开(公告)号：US11548317B2

公开(公告)日：2023-01-10

申请号：US16903928

申请日：2020-06-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Henry Zhan ,  Jianfeng Wang ,  Congjie Wang ,  Ming Liu ,  Anil K. Sachdev

IPC: F16D65/12 ,  B60B27/00 ,  B60B3/10 ,  B60B3/00

Abstract: A brake rotor includes a friction portion, a hat portion axially extending from the friction portion and including a top face that is axially displaced from the friction portion and a side wall that extends from the friction portion to the top face, and a nose portion which extends axially from the top face of the hat portion away from the friction portion.

公开(公告)号：US11530469B2

公开(公告)日：2022-12-20

申请号：US16460369

申请日：2019-07-02

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qi Lu ,  Jianfeng Wang

IPC: C22C38/02 ,  C22C38/04 ,  C22C38/22 ,  C22C38/24 ,  C22C38/32 ,  C21D1/18 ,  C22C38/26

Abstract: A press-hardened steel is provided. The press-hardened steel has an alloy matrix including from about 0.01 wt. % to about 0.35 wt. % carbon, from about 1 wt. % to about 9 wt. % chromium, from about 0.5 wt. % to about 2 wt. % silicon, and a balance of iron. The alloy matrix is greater than or equal to about 95 vol. % martensite. A first layer is disposed directly on the alloy matrix. The first layer is continuous, has a thickness of greater than or equal to about 0.01 μm to less than or equal to about 10 μm, and includes an oxide enriched with chromium and silicon. A second layer is disposed directly on the first layer, and includes an oxide enriched with Fe. Methods of preparing the press-hardened steel are also provided.

公开(公告)号：US20210394554A1

公开(公告)日：2021-12-23

申请号：US16903928

申请日：2020-06-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Henry Zhan ,  Jianfeng Wang ,  Congjie Wang ,  Ming Liu ,  Anil K. Sachdev

IPC: B60B27/00 ,  F16D65/12 ,  B60B3/10

Abstract: A brake rotor includes a friction portion, a hat portion axially extending from the friction portion and including a top face that is axially displaced from the friction portion and a side wall that extends from the friction portion to the top face, and a nose portion which extends axially from the top face of the hat portion away from the friction portion.

公开(公告)号：US10357941B2

公开(公告)日：2019-07-23

申请号：US15302852

申请日：2014-07-28

Applicant: GM Global Technology Operations LLC

Inventor： Yongqiang Li ,  Blair E. Carlson ,  Xin Yang ,  Jianfeng Wang

IPC: B23K31/02 ,  B32B7/12 ,  H05K3/36 ,  B32B27/08 ,  B32B27/32 ,  B32B27/36 ,  B32B3/26 ,  B32B37/06 ,  B32B37/12 ,  B23K1/00 ,  B23K1/20 ,  B23K35/02 ,  B32B5/02 ,  B32B15/08 ,  H05K3/32

Abstract: The present disclosure relates to a bonding system (100) comprising an adhesive (200), in contact with a first contact surface (115) and a second contact surface (125), and a solder mesh (310) positioned in the adhesive (200) in contact with the first contact surface (115). Also, the present disclosure relates to a bonding method to produce a solder-reinforced adhesive bond joining a first substrate (110) and a second substrate (120), comprising applying, on a first contact surface (115) of the first substrate (110), an adhesive (200), positioning, at least partially into the adhesive (200), a solder mesh (310), such that the solder mesh (310) contacts the first contact surface (115), connecting, to a portion of the adhesive (200) opposite the first contact surface (115), a second contact surface (125) of the second substrate (120), and applying heat to the first contact surface (115) such that at least one portion of the solder mesh (310) reaches a solder-bonding temperature.

公开(公告)号：US10086429B2

公开(公告)日：2018-10-02

申请号：US14881551

申请日：2015-10-13

Applicant: GM Global Technology Operations LLC

Inventor： Bin Hu ,  Anil K. Sachdev ,  Jon T. Carter ,  Jianfeng Wang

IPC: B22D21/04 ,  B22D27/04 ,  B22D17/00 ,  C22C23/02 ,  C22C21/02 ,  C22C21/10 ,  B22D21/00 ,  B22D30/00 ,  C22C21/06 ,  C22C21/08

Abstract: Methods for casting high strength, high ductility lightweight metal components are provided. The casting may be die-casting. A molten lightweight metal alloy is introduced into a cavity of a mold. The molten lightweight metal alloy is solidified and then a solid component is removed from the mold. The solid component is designed to have a thin wall. For example, the solid component has at least one dimension of less than or equal to about 2 mm. In this way, a chill zone microstructure is formed that extends across the at least one dimension of the solid lightweight metal alloy component. The solid component thus may be substantially free of dendritic microstructure formation, enabling more extensive alloy chemistries than previously possible during casting. Such methods may be used to form high strength, high ductility, and lightweight metal alloy vehicle components.

公开(公告)号：US20180223385A1

公开(公告)日：2018-08-09

申请号：US15426518

申请日：2017-02-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Qi Lu ,  Jianfeng Wang

IPC: C21D9/00 ,  C22C38/38 ,  C22C38/34 ,  C22C38/22 ,  C22C38/06 ,  C22C38/02 ,  C21D8/00 ,  C21D1/673 ,  C21D1/19 ,  C21D1/40 ,  C21D1/42 ,  C21D1/52

CPC classification number: C21D9/0068 ,  C21D1/19 ,  C21D1/40 ,  C21D1/42 ,  C21D1/52 ,  C21D1/673 ,  C21D8/005 ,  C21D2211/001 ,  C21D2211/008 ,  C22C38/02 ,  C22C38/06 ,  C22C38/22 ,  C22C38/34 ,  C22C38/38 ,  Y02P10/253

Abstract: In a method for increasing steel impact toughness, the steel composition contains from about 5 wt % to about 10 wt % manganese and has a martensite finish temperature (Mf) below room temperature. The steel composition is exposed to hot forming to form a steel part. During hot forming, the steel composition is subjected to a heat treatment temperature above its fully austenite formed temperature, is transferred to a die, and while in the die, is simultaneously formed and quenched. In one example, quenching cools the steel composition to room temperature, and the steel part is removed from the die and reheated to a baking temperature ranging from about 120° C. to about 400° C. In another example, quenching is interrupted at an interruption temperature ranging from about 120° C. to about 400° C., and the steel composition is maintained at the interruption temperature for a predetermined time and then is cooled to room temperature.

公开(公告)号：US09809093B2

公开(公告)日：2017-11-07

申请号：US15037624

申请日：2013-12-04

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Bin Hu ,  Jianfeng Wang ,  Xin Yang ,  Anil K. Sachdev

IPC: B60J5/00 ,  B60J5/04 ,  B22D17/00 ,  B22D17/22 ,  B22D19/02 ,  B22D25/02 ,  B22D17/24 ,  B22D21/00

CPC classification number: B60J5/0455 ,  B22D17/00 ,  B22D17/005 ,  B22D17/22 ,  B22D17/24 ,  B22D19/02 ,  B22D21/007 ,  B22D25/02 ,  B60J5/0425 ,  B60J5/0426 ,  B60J5/045 ,  B60J5/0466 ,  B60J5/0483

Abstract: An inner door panel (30) for a vehicle side door that includes an integrated side impact beam (70) formed as part of the door in a die casting process. The inner door panel (30) includes an outer frame having a top rail (38), a bottom rail (40), an inner side rail (42) and an outer side rail (44) defining a central opening (34). The impact beam (70) includes a main beam portion (72), a first end support portion (74) and a second end support portion (78). The first end support portion is formed to the side rail (42) and the second end support portion (78) is formed to the outer side rail (44), where the main beam portion (72) extends across the opening (34).

公开(公告)号：US20240226987A1

公开(公告)日：2024-07-11

申请号：US18406606

申请日：2024-01-08

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Erik B. Golm ,  Louis G. Hector, JR. ,  Anil K. Sachdev ,  Andrew C. Bobel ,  Kevin B. Rober ,  Jianfeng Wang

IPC: B21D37/10 ,  B21D13/02 ,  B21D37/16 ,  B62D21/15

CPC classification number: B21D37/10 ,  B21D13/02 ,  B21D37/16 ,  B62D21/15 ,  Y10T428/12417

Abstract: A method of forming a plurality of embossments in a sheet of metal includes: (i) placing the sheet onto a first surface of a die having a plurality of embossment cavities thereon, wherein the sheet has a bottom surface in contact with the first surface of the die and a top surface having an ablative coating formed thereon; and (ii) directing a laser beam at the ablative coating at one or more loci on the top surface of the sheet which correspond to the plurality of embossment cavities on the first surface of the die, so as to locally ablate the ablative coating at the one or more loci and turn the ablative coating at the one or more loci into plasma, thereby causing a plasma pressure shock wave at each of the one or more loci which presses the sheet into the embossment cavities to form the embossments.

公开(公告)号：US12014872B2

公开(公告)日：2024-06-18

申请号：US17050084

申请日：2018-04-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Haijing Liu ,  Xiaochao Que ,  Dewen Kong ,  Jianfeng Wang

IPC: H01G11/06 ,  H01G11/24 ,  H01G11/28 ,  H01G11/46 ,  H01G11/50 ,  H01M4/02 ,  H01M4/48 ,  H01M10/0525 ,  H01M10/0587 ,  H01M12/00

CPC classification number: H01G11/06 ,  H01G11/24 ,  H01G11/28 ,  H01G11/46 ,  H01G11/50 ,  H01M4/48 ,  H01M10/0525 ,  H01M10/0587 ,  H01M12/00 ,  H01M2004/027 ,  H01M2004/028

Abstract: Hybrid electrochemical cells and modules include an anode two-sided current collector a coated with host material in anode region(s) and a cathode two-sided current collector coated with active material in cathode region(s), and one or more of the anode current collector and the cathode current collector is coated with capacitor material in one or more distinct, non-overlapping capacitor regions. A hybrid anode and/or cathode can include gaps between capacitor regions and anode regions and cathode regions. The capacitor material applied to an electrode is different from the host or active material thereof. Active material includes lithium metal oxides and lithium metal phosphates such as LiFePO4, Li(NixMnyCoz)O2, and/or LiMn2O4; host material includes graphite, silicon, silicon-Li/Sn/Cu alloys, Si/Co/Fe/TiSn oxides, and low-surface area carbon; and capacitor material includes activated carbon, metal oxides, and metal sulfides.

公开(公告)号：US11951522B2

公开(公告)日：2024-04-09

申请号：US18123592

申请日：2023-03-20

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Jiachen Pang ,  Qi Lu ,  Jianfeng Wang

IPC: B21D22/02 ,  C21D1/19 ,  C21D1/673 ,  C21D1/76 ,  C21D6/00 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14

CPC classification number: B21D22/022 ,  C21D1/19 ,  C21D1/673 ,  C21D1/76 ,  C21D6/005 ,  C22C38/04 ,  C22C38/06 ,  C22C38/12 ,  C22C38/14 ,  C21D2211/001 ,  C21D2211/008

Abstract: A method of forming a shaped steel object is provided. The method includes cutting a blank from an alloy composition including 0.05-0.5 wt. % carbon, 4-12 wt. % manganese, 1-8 wt. % aluminum, 0-0.4 wt. % vanadium, and a remainder balance of iron. The method also includes heating the blank until the blank is austenitized to form a heated blank, transferring the heated blank to a press, forming the heating blank into a predetermined shape to form a stamped object, and decreasing the temperature of the stamped object to a temperature between a martensite start (Ms) temperature of the alloy composition and a martensite final (Mf) temperature of the alloy composition to form a shaped steel object comprising martensite and retained austenite.