Patents by Inventor Qinming GU

Qinming GU 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).

  • Patent number: 11331737
    Abstract: A device for insulating a cathode surface in electrochemical machining is provided. The cathode surface insulation device is characterized in that super-hydrophobic micro-structures are prepared in regions to be insulated on the cathode surface, so as to realize selective insulation of the surface of the tool cathode, and thereby achieve objects of constraining an electrical field in the processing area, reducing stray corrosion and side surface taper, and improving processing efficiency and accuracy.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: May 17, 2022
    Assignee: JIANGSU UNIVERSITY
    Inventors: Kun Xu, Wenrong Shen, Zhaoyang Zhang, Hao Zhu, Xueren Dai, Qinming Gu
  • Patent number: 11306408
    Abstract: Disclosed are a device and a method for microelectrodeposition through a laser assisted flexible following tool electrode. Localization of electrodeposition and dimensional precision of members are enhanced by using the flexible following tool electrode to restrict a dispersion region of an electric field and a reaction region of electrodeposition, and a complex-shaped member can be deposited by controlling a motion path of the flexible following tool electrode. Since a laser has a high power density, introducing laser irradiation changes an electrode state in a radiated region, accelerates ion diffusion and electron transfer speeds, and increases a deposition rate, thus reducing defects such as pitting and cracking in a deposit, enhancing deposition quality, and achieving fabrication of a micro-part by a synergistic action of both electrochemical energy and laser energy.
    Type: Grant
    Filed: January 19, 2020
    Date of Patent: April 19, 2022
    Assignee: Jiangsu University
    Inventors: Zhaoyang Zhang, Yucheng Wu, Kun Xu, Xueren Dai, Anbin Wang, Qinming Gu, Hong Wang
  • Publication number: 20220010448
    Abstract: Disclosed are a device and a method for microelectrodeposition through a laser assisted flexible following tool electrode. Localization of electrodeposition and dimensional precision of members are enhanced by using the flexible following tool electrode to restrict a dispersion region of an electric field and a reaction region of electrodeposition, and a complex-shaped member can be deposited by controlling a motion path of the flexible following tool electrode. Since a laser has a high power density, introducing laser irradiation changes an electrode state in a radiated region, accelerates ion diffusion and electron transfer speeds, and increases a deposition rate, thus reducing defects such as pitting and cracking in a deposit, enhancing deposition quality, and achieving fabrication of a micro-part by a synergistic action of both electrochemical energy and laser energy.
    Type: Application
    Filed: January 19, 2020
    Publication date: January 13, 2022
    Applicant: Jiangsu University
    Inventors: Zhaoyang ZHANG, Yucheng WU, Kun XU, Xueren DAI, Anbin WANG, Qinming GU, Hong WANG
  • Publication number: 20210339324
    Abstract: A device for insulating a cathode surface in electrochemical machining is provided. The cathode surface insulation device is characterized in that super-hydrophobic micro-structures are prepared in regions to be insulated on the cathode surface, so as to realize selective insulation of the surface of the tool cathode, and thereby achieve objects of constraining an electrical field in the processing area, reducing stray corrosion and side surface taper, and improving processing efficiency and accuracy.
    Type: Application
    Filed: July 6, 2018
    Publication date: November 4, 2021
    Applicant: JIANGSU UNIVERSITY
    Inventors: Kun XU, Zhaoyang ZHANG, Hao ZHU, Xueren DAI, Qinming GU