公开(公告)号：US20170361392A1

公开(公告)日：2017-12-21

申请号：US15616252

申请日：2017-06-07

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： David R. Sigler ,  Blair E. Carlson ,  Hui-Ping Wang ,  Nannan Chen

IPC: B23K11/11 ,  B23K11/20 ,  B23K11/30 ,  B23K35/02

CPC classification number: B23K11/115 ,  B23K11/20 ,  B23K11/3009 ,  B23K35/0205 ,  B23K2103/20

Abstract: A spot welding electrode and a method of using the electrode to resistance spot weld a workpiece stack-up that includes an aluminum workpiece and an adjacent overlapping steel workpiece are disclosed. The spot welding electrode includes a weld face having a multistep conical geometry that includes a series of steps centered on a weld face axis. The series of steps comprises an innermost first step in the form of a central plateau and, additionally, one or more annular steps that surround the central plateau and cascade radially outwardly from the central plateau towards an outer perimeter of the weld face. The weld face has a conical cross-sectional profile in which a periphery of a top plateau surface of the central plateau and a periphery of a top annular step surface of each of the one or more annular steps are contained within a conical sectional area.

公开(公告)号：US20170252853A1

公开(公告)日：2017-09-07

申请号：US15442155

申请日：2017-02-24

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Hui-Ping Wang ,  Blair E. Carlson ,  David R. Sigler ,  Michael J. Karagoulis

IPC: B23K11/20 ,  B23K11/16 ,  B23K11/30 ,  B23K11/11

CPC classification number: B23K11/20 ,  B23K11/115 ,  B23K11/163 ,  B23K11/3009 ,  B23K2101/34 ,  B23K2103/20

Abstract: A spot weld may be formed between an aluminum workpiece and an adjacent overlapping steel workpiece with the use of opposed spot welding electrodes that have mating weld faces designed for engagement with the outer surfaces of the workpiece stack-up assembly. The electrode that engages the stack-up assembly proximate the aluminum workpiece includes a central ascending convex surface and the electrode that engages the stack-up assembly proximate the steel workpiece has an annular surface. The mating weld faces of the first and second spot welding electrodes distribute the passing electrical current along a radially outwardly expanding flow path to provide a more uniform temperature distribution over the intended spot weld interface and may also produce a deformed bonding interface within the formed weld joint. Each of these events can beneficially affect the strength of the weld joint.

公开(公告)号：US20250132440A1

公开(公告)日：2025-04-24

申请号：US18493671

申请日：2023-10-24

Applicant: GM Global Technology Operations LLC

Inventor： William P. Payne ,  Hui-Ping Wang ,  Vivian Vasquez ,  Lu Huang

IPC: H01M50/244 ,  B23K37/047 ,  H01M50/224 ,  H01M50/249

Abstract: A battery casing includes a first portion including a first planar portion and a bottom portion and a second portion having a second planar portion, a first side portion, and a second side portion, the first portion and the second portion configured to be welded together at (i) a first butt joint extending along the first side portion to join the first side portion to the first planar portion and to the bottom portion at the first side portion, (ii) a second butt joint extending along the second planar portion to join the second planar portion to the bottom portion at the second planar portion, and (iii) a third butt joint extending along the second side portion to join the second side portion to the first planar portion and to the bottom portion at the second side portion.

公开(公告)号：US20250129811A1

公开(公告)日：2025-04-24

申请号：US18493722

申请日：2023-10-24

Applicant: GM Global Technology Operations LLC

Inventor： Ying Lu ,  Junjie Ma ,  Hui-Ping Wang ,  Mitchell Poirier ,  Scott A. Hooker

IPC: F16B5/08

Abstract: A weldment assembly includes a first component and a second component configured to be coupled to the first component. Additionally, the first component and the second component are coupled through a first linear stitch and a second linear stitch disposed parallel to the first linear stitch.

公开(公告)号：US20170106470A1

公开(公告)日：2017-04-20

申请号：US14884303

申请日：2015-10-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Joshua L. Solomon ,  Hui-Ping Wang ,  William P. Payne

IPC: B23K26/04 ,  B23K26/22

CPC classification number: B23K26/04 ,  B23K26/0665 ,  B23K26/22 ,  B23K26/322 ,  B23K2101/34

Abstract: A method of laser welding a first component to a second component includes moving at least one of a laser beam and the components via a controller along a weld path at least a portion of which is a spiral having a first order of continuity thereby welding the first component to the second component. In one embodiment, the spiral is an Archimedean spiral.

公开(公告)号：US20160114428A1

公开(公告)日：2016-04-28

申请号：US14521198

申请日：2014-10-22

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Hui-Ping Wang ,  Blair E. Carlson ,  Michael G. Poss ,  David A. Gatny ,  Perry G. Leggett

IPC: B23K26/26 ,  B23K26/14 ,  B23K35/28 ,  B23K26/06 ,  B23K26/08 ,  B23K26/32 ,  B23K26/067

CPC classification number: B23K26/26 ,  B23K26/0648 ,  B23K26/0676 ,  B23K26/0884 ,  B23K26/211 ,  B23K26/242 ,  B23K26/32 ,  B23K35/286 ,  B23K2103/10

Abstract: A method of laser welding aluminum alloy workpieces with dual laser beams arranged in a cross-beam orientation is disclosed. The method comprises directing dual laser beams, which include a first laser beam and a second laser beam, at and along a weld seam established between the aluminum alloy workpieces together with a filler wire. The first laser beam includes a first longitudinal axis and the second laser beam includes a second longitudinal axis. When arranged in the cross-beam orientation, a plane that intersects the first longitudinal axis and the second longitudinal axis of the first and second laser beams, respectively, forms a line where it meets the aluminum alloy workpieces that is oriented transverse to the weld seam.

Abstract translation: 公开了一种以双横向取向的双激光束激光焊接铝合金工件的方法。 该方法包括在铝合金工件与填充线之间建立的并且沿着焊缝之间引导包括第一激光束和第二激光束的双激光束。 第一激光束包括第一纵向轴线，第二激光束包括第二纵向轴线。 当以横梁方向布置时，分别与第一和第二激光束的第一纵向轴线和第二纵向轴线相交的平面形成线，其中它与铝合金工件相交，横向于焊缝 。

公开(公告)号：US20250145026A1

公开(公告)日：2025-05-08

申请号：US18502146

申请日：2023-11-06

Applicant: GM Global Technology Operations LLC

Inventor： Joel S. Hooton ,  Joshua L. Solomon ,  Hui-Ping Wang ,  Lu Huang ,  Xiaoling Chen

IPC: B60L50/64 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6556

Abstract: A multifunctional unified structure thermal plate and system for supporting a plurality of battery cells included as part of a high voltage battery pack. The plate may include a bottom plate and a plurality of crossbeams configured for supporting the battery cells, with the bottom plate and the crossbeams together being from as a monolithic, one-piece structure.

公开(公告)号：US11701738B2

公开(公告)日：2023-07-18

申请号：US17036786

申请日：2020-09-29

Applicant: GM Global Technology Operations LLC ,  Penn State Research Foundation

Inventor： Nannan Chen ,  Joshua L. Solomon ,  Hui-Ping Wang ,  Zixuan Wan ,  Blair E. Carlson ,  Paulina G. Torres Guzman

IPC: B23K26/24 ,  B23K26/70 ,  B23K101/00

CPC classification number: B23K26/24 ,  B23K26/70 ,  B23K2101/006

Abstract: A laser welded assembly and method of making. The laser welded assembly includes a first work piece having a thickness (T1) defined between an external surface and a faying surface; a second work piece having a thickness (T2) defined between an external surface and a faying surface of the second work piece; a weld seam having a core fusion zone extending from the external surface of the first work piece through the faying interface and at least partially into the thickness (T2) of the second work piece; and a protruding fusion zone extending laterally from the core fusion zone adjacent to the external surface of the first work piece. The protruding fusion zone may be formed by post-heating or concurrently with the core fusion zone.

公开(公告)号：US10953497B2

公开(公告)日：2021-03-23

申请号：US16085283

申请日：2016-11-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Hui-Ping Wang ,  Yu Pan ,  Blair E. Carlson ,  Joshua L. Solomon ,  William P. Payne ,  David Yang ,  Wu Tao

IPC: B23K26/60 ,  B23K26/26 ,  B23K26/322 ,  B23K26/082 ,  B23K26/244 ,  B23K101/00 ,  B23K101/18 ,  B23K101/34 ,  B23K103/04

Abstract: A method of laser welding a workpiece stack-up (10) of overlapping steel workpieces (12, 14) involves heat-treating a region (64) of the stack-up (10) followed by forming a laser weld joint (66) that is located at least partially within the heat-treated region (64). During heat-treating, one or more pre-welding laser beams (68) are sequentially directed at a top surface (20) of the workpiece stack-up (10) and advanced along a pre-welding beam travel pattern (70) so as to reduce an amount of vaporizable zinc within the stack-up (10). Thereafter, the laser weld joint (66) is formed by directing a welding laser beam (82) at the top surface (20) of the workpiece stack-up (10) and advancing the welding laser beam (82) along a welding beam travel pattern (84) that at least partially overlaps with a coverage area of a pre-welding beam travel pattern (70) or a shared coverage area portion of multiple pre-welding beam travel patterns (70). The method can help reduce an amount of vaporizable zinc within the stack-up (10).

公开(公告)号：US20210031297A1

公开(公告)日：2021-02-04

申请号：US16529313

申请日：2019-08-01

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Hongliang Wang ,  John S. Agapiou ,  John D. Campbell ,  Hui-Ping Wang

IPC: B23K26/03 ,  B23K26/21 ,  B23K26/70 ,  B23K31/02 ,  B29C65/16 ,  B23K31/12

Abstract: A system and method for inspecting and laser welding a workpiece at an area of interest on the workpiece includes a first camera configured to view the area of interest along a first line of sight, a second camera configured to view the area of interest along a second line of sight different from the first line of sight, a laser welding scan head configured to laser weld the workpiece at the area of interest, and a control system configured to receive input from each of the first and second cameras, determine one or more alignment measurements based on the received input, and select a weld schedule from a plurality of weld schedules based on the one or more alignment measurements.