Patents by Inventor Zhongxia Liu
Zhongxia Liu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11548056Abstract: 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.Type: GrantFiled: January 22, 2020Date of Patent: January 10, 2023Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Pei-chung Wang, Susan M. Smyth, Bradley J. Blaski, Zhongxia Liu
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Publication number: 20200164424Abstract: 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.Type: ApplicationFiled: January 22, 2020Publication date: May 28, 2020Inventors: Pei-chung Wang, Susan M. Smyth, Bradley J. Blaski, Zhongxia Liu
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Publication number: 20200095485Abstract: 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.Type: ApplicationFiled: January 16, 2017Publication date: March 26, 2020Applicants: GM GLOBAL TECHNOLOGY OPERATIONS LLC, Zhengzhou UniversityInventors: Pei-chung Wang, Hua-tzu Fan, Bin Cai, Zhongxia Liu
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Patent number: 10576532Abstract: 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.Type: GrantFiled: November 18, 2016Date of Patent: March 3, 2020Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Pei-chung Wang, Susan M. Smyth, Bradley J. Blaski, Zhongxia Liu
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Patent number: 10105788Abstract: Systems and methods to improve weld quality are described. For example, certain systems and methods described use weld quality monitoring as feedback to an ultrasonic welding process to improve weld quality. Still other systems and methods provide improvement to double sided and single sided ultrasonic welding through the use of selected multiple pulses.Type: GrantFiled: August 15, 2016Date of Patent: October 23, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Pei-chung Wang, Susan M. Smyth, Zhongxia Liu
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Patent number: 10105789Abstract: Systems and methods to improve weld quality are described. For example, certain systems and methods described use weld quality monitoring as feedback to an ultrasonic welding process to improve weld quality. Still other systems and methods provide improvement to double sided and single sided ultrasonic welding through the use of selected multiple pulses.Type: GrantFiled: August 15, 2016Date of Patent: October 23, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Pei-chung Wang, Susan M. Smyth, Zhongxia Liu
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Patent number: 10105787Abstract: Systems and methods to improve weld quality are described. For example, certain systems and methods described use weld quality monitoring as feedback to an ultrasonic welding process to improve weld quality. Still other systems and methods provide improvement to double sided and single sided ultrasonic welding through the use of selected multiple pulses.Type: GrantFiled: May 23, 2016Date of Patent: October 23, 2018Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Pei-chung Wang, Susan M. Smyth, Zhongxia Liu
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Publication number: 20170355149Abstract: A method of inspection and repair of a joint in an assembly. The joint is formed by a first work piece and a second work piece. An adhesive placed between the first and second work pieces to define the joint. The assembly includes an ultrasonic welding device including an ultrasonic horn configured to deliver ultrasonic energy to the joint. A controller is operatively connected to the ultrasonic welding device. The controller includes a processor and tangible, non-transitory memory on which is recorded instructions for executing a method of inspecting and repairing the adhesive-bonded joint. The controller is programmed to deliver a first ultrasonic pulse (P1) to the joint, via the ultrasonic welding device, and determine an adhesive coverage (AC) based at least partially on the first ultrasonic pulse (P1).Type: ApplicationFiled: May 19, 2017Publication date: December 14, 2017Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLCInventors: Pei-Chung Wang, Jorge F. Arinez, Susan M. Smyth, Zhongxia Liu
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Publication number: 20170165739Abstract: 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.Type: ApplicationFiled: November 18, 2016Publication date: June 15, 2017Inventors: Pei-chung Wang, Susan M. Smyth, Bradley J. Blaski, Zhongxia Liu
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Publication number: 20160354858Abstract: Systems and methods to improve weld quality are described. For example, certain systems and methods described use weld quality monitoring as feedback to an ultrasonic welding process to improve weld quality. Still other systems and methods provide improvement to double sided and single sided ultrasonic welding through the use of selected multiple pulses.Type: ApplicationFiled: August 15, 2016Publication date: December 8, 2016Inventors: Pei-chung Wang, Susan M. Smyth, Zhongxia Liu
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Publication number: 20160354974Abstract: Systems and methods to improve weld quality are described. For example, certain systems and methods described use weld quality monitoring as feedback to an ultrasonic welding process to improve weld quality. Still other systems and methods provide improvement to double sided and single sided ultrasonic welding through the use of selected multiple pulses.Type: ApplicationFiled: May 23, 2016Publication date: December 8, 2016Inventors: Pei-chung Wang, Susan M. Smyth, Zhongxia Liu
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Publication number: 20160354859Abstract: Systems and methods to improve weld quality are described. For example, certain systems and methods described use weld quality monitoring as feedback to an ultrasonic welding process to improve weld quality. Still other systems and methods provide improvement to double sided and single sided ultrasonic welding through the use of selected multiple pulses.Type: ApplicationFiled: August 15, 2016Publication date: December 8, 2016Inventors: Pei-chung Wang, Susan M. Smyth, Zhongxia Liu