-
公开(公告)号：US11633813B2
公开(公告)日：2023-04-25
申请号：US16692430
申请日：2019-11-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Pei-chung Wang , Spyros P. Mellas , Debejyo Chakraborty , James Michael Ward , Diana M. Wegner
Abstract: A weld system includes: a robot control module configured to actuate a robot and move a welder along a joint of metal workpieces during welding, the welder being attached to the robot; a weld control module configured to, during the welding, apply power to the welder, supply a shield gas, and supply electrode material; a vision sensor configured to, during the welding, optically measure distances between the vision sensor and locations, respectively, on an outer surface of a weld bead created along the joint by the welder; and a weld module configured to: determine a strength of the weld bead at a location based on: the distances at the location along the joint; and at least one parameter from at least one of the robot control module during the welding, the weld control module during the welding, and a sensor configured to capture data of the welding during the welding.
-
公开(公告)号：US11590601B2
公开(公告)日：2023-02-28
申请号：US16576938
申请日：2019-09-20
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Pei-chung Wang , Michael J. Karagoulis , Spyros P. Mellas , Steven Cipriano
Abstract: A method of joining a multiple member work-piece includes providing a first steel work-piece having a first thickness and a second steel work-piece having a second thickness. The first thickness is at least twice the second thickness. A third material is disposed in contact with the second steel work-piece. For example, the third material may be in the form of a rivet, a plurality of pins, or a coating material. The method includes resistance welding the first and second work-pieces together. A bonded assembly includes the first and second steel members and the third material being bonded together, where the thickness of the first member is at least twice the thickness of the second member.
-
公开(公告)号：US11383319B2
公开(公告)日：2022-07-12
申请号：US16561305
申请日：2019-09-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Pei-chung Wang , Michael J. Karagoulis , Spyros P. Mellas , Steven Cipriano
Abstract: A method of joining a multiple member work-piece includes providing a first steel work-piece having a first electrical resistivity and a second steel work-piece having a second electrical resistivity that is lower than the first electrical resistivity. A third material is disposed in contact with the second steel work-piece. The third material has an electrical resistivity that is greater than the second electrical resistivity. The method includes resistance welding the first and second work-pieces together. The third material may be in the form of a rivet, a third work-piece, or a coating material disposed between the first and second work-pieces. A bonded assembly includes steel members and a third material being bonded together, wherein the electrical resistivity of the second member is lower than the electrical resistivity of the first member, and the third material has an electrical resistivity that is greater than the electrical resistivity of the second member.
-
公开(公告)号：US20210069821A1
公开(公告)日：2021-03-11
申请号：US16561305
申请日：2019-09-05
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Pei-chung Wang , Michael J. Karagoulis , Spyros P. Mellas , Steven Cipriano
Abstract: A method of joining a multiple member work-piece includes providing a first steel work-piece having a first electrical resistivity and a second steel work-piece having a second electrical resistivity that is lower than the first electrical resistivity. A third material is disposed in contact with the second steel work-piece. The third material has an electrical resistivity that is greater than the second electrical resistivity. The method includes resistance welding the first and second work-pieces together. The third material may be in the form of a rivet, a third work-piece, or a coating material disposed between the first and second work-pieces. A bonded assembly includes steel members and a third material being bonded together, wherein the electrical resistivity of the second member is lower than the electrical resistivity of the first member, and the third material has an electrical resistivity that is greater than the electrical resistivity of the second member.
-
公开(公告)号：US20200338835A1
公开(公告)日：2020-10-29
申请号：US16896512
申请日：2020-06-09
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Pei-chung Wang , Bradley J. Blaski
Abstract: Methods for ultrasonic welding of thermoplastic polymer workpieces and assemblies made therefrom are provided. The method may comprise disposing a first region of a first thermoplastic polymer workpiece and a second region of a second thermoplastic polymer workpiece between an ultrasonic horn and an anvil of an ultrasonic welding device. The first workpiece has a preformed deformation and at least one of the first and/or second workpieces has an adhesive precursor applied thereto. The ultrasonic horn or anvil seats within the preformed deformation. Ultrasonic energy is applied from the ultrasonic horn to create a weld nugget between the first and second workpieces. The assembly thus formed has a green strength sufficient to be further processed immediately. The methods provide a robust weld joint with controlled adhesive bondline thickness.
-
Patent Agency Ranking
公开(公告)号：US20200164424A1
公开(公告)日：2020-05-28
申请号：US16749362
申请日：2020-01-22
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Pei-chung Wang , Susan M. Smyth , Bradley J. Blaski , Zhongxia Liu
Abstract: A riveting system, for use in mechanically linking adjacent workpieces, including a rivet having a height greater than a sum of thicknesses, measured along a line of riveting, of the workpieces being linked, so that the rivet can pass fully through the workpieces. The system also includes a riveting die, which may be a separate product. The die includes a protrusion extending from a peak toward a transition point; and a trough having a trough surface. The trough surface includes a trough inner wall, extending from the transition point to a trough bottom, and a trough outer wall, extending from the trough bottom to a trough outer edge. The technology also includes computerized systems for comparing a load-displacement profile of riveting to a pre-set profile to determine whether the riveting was performed properly.
-
公开(公告)号：US20200095485A1
公开(公告)日：2020-03-26
申请号：US16469405
申请日：2017-01-16
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC , Zhengzhou University
Inventor： Pei-chung Wang , Hua-tzu Fan , Bin Cai , Zhongxia Liu
IPC: C09J163/00 , C08G59/56 , C08G59/24 , C08G59/22 , C09J5/06 , C09J11/04 , C09J11/06 , B29C65/48 , B29C65/00
Abstract: An adhesive composition includes an epoxy component and an additive component reactive with the epoxy component. The additive component includes an imidazole present in an amount of less than or equal to 10 parts by weight based on 100 parts by weight of the adhesive composition, and an amine present in an amount of less than or equal to 5 parts by weight based on 100 parts by weight of the adhesive composition. The epoxy component and the additive component are present in the adhesive composition in a ratio of from 1:1 to 15:1. A method of forming a component includes curing the adhesive composition at a temperature of less than or equal to 150° C. for less than or equal to 30 minutes to thereby join the first substrate and the second substrate.
-
公开(公告)号：US20200055139A1
公开(公告)日：2020-02-20
申请号：US16103203
申请日：2018-08-14
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Pei-chung Wang , Michael J. Karagoulis , Zhenke Teng , Spyros P, Mellas
Abstract: A method of manufacturing a resistance weld in at least three overlying sheet metal layers includes the steps of: (1) providing a first sheet metal layer having a first thickness; (2) providing a second sheet metal layer having a second thickness; (3) providing a filler material on the second sheet metal layer; (4) providing a third sheet metal layer having a third thickness onto the filler material and the second sheet metal layer wherein the third thickness is less than each of the first and the second thicknesses; (5) pressing a pair of welding electrodes against a pair of opposing outer surfaces with the filler material disposed therebetween; and (6) passing an electric current between the pair of electrodes through the filler material and the first, second, and third sheet metal layers to form a weld nugget which penetrates into at least the first and second sheet metal layers.
-
公开(公告)号：US20190316622A1
公开(公告)日：2019-10-17
申请号：US15955167
申请日：2018-04-17
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Mark O. Vann , Pei-chung Wang
Abstract: A fastener assembly for use with one or more workpieces. The fastener assembly can be a single-sided (i.e., blind) fastener assembly in which the fastener assembly is inaccessible from one side of the workpiece(s). In this regard, the workpiece(s) can make-up an enclosed component, for example. The fastener assembly can have a fastening end, such as a threaded stud, for securement with a distinct component that is otherwise detached from the fastener assembly. The workpiece(s) can be composed of a carbon fiber composite material, an aluminum material, or another type of material.
-
60.发明申请公开(公告)号：US20190314914A1
公开(公告)日：2019-10-17
申请号：US15952645
申请日：2018-04-13
Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Inventor： Pei-chung Wang , Michael J. Karagoulis , Zhenke Teng
Abstract: A method of resistance spot brazing a workpiece stack-up that includes a first thin-gauge steel workpiece and a second thin-gauge steel workpiece. The method includes several steps. A first step involves applying a filler material to a surface of the first thin-gauge steel workpiece. A second step involves bringing a surface of the second thin-gauge steel workpiece to adjoin the filler material. A third step involves clamping a first welding electrode and a second welding electrode on the first and second thin-gauge steel workpieces and over the filler material. A fourth step involves passing electrical current between the first and second welding electrodes and hence through the filler material. And a fifth step involves terminating passage of the electrical current in order to establish a brazed joint between the first and second thin-gauge steel workpieces.
-
-
-
-
-
-
-
-
-
Search Results
63
records
(took 0.02 seconds)
