Patents by Inventor Zeming ZHOU

Zeming ZHOU 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: 11193183
    Abstract: The present invention relates to the technical field of material surface peening, and more particularly to an energy compensated equipower density oblique laser shock method. The method includes: acquiring a radius of curvature of a peening region of a part to be processed, and judging a range of a laser incident angle; determining laser parameters, such as laser pulse width, a spot diameter, and required laser energy under a vertical incidence condition; calculating the required laser energy at the minimum incident angle, and judging whether the energy falls within the technical indexes of a laser; and performing laser shock peening on the part by pulse laser beams with different energies. According to the present invention, the laser power or energy is compensated according to changes in the incident angle and the radius of curvature of the part to be processed.
    Type: Grant
    Filed: September 10, 2020
    Date of Patent: December 7, 2021
    Assignee: GUANGDONG UNIVERSITY OF TECHNOLOGY
    Inventors: Yongkang Zhang, Chaohui Lin, Zeming Zhou, Zheng Zhang, Guoxin Lu
  • Publication number: 20200407819
    Abstract: The present invention relates to the technical field of material surface peening, and more particularly to an energy compensated equipower density oblique laser shock method. The method includes: acquiring a radius of curvature of a peening region of a part to be processed, and judging a range of a laser incident angle; determining laser parameters, such as laser pulse width, a spot diameter, and required laser energy under a vertical incidence condition; calculating the required laser energy at the minimum incident angle, and judging whether the energy falls within the technical indexes of a laser; and performing laser shock peening on the part by pulse laser beams with different energies. According to the present invention, the laser power or energy is compensated according to changes in the incident angle and the radius of curvature of the part to be processed.
    Type: Application
    Filed: September 10, 2020
    Publication date: December 31, 2020
    Inventors: Yongkang ZHANG, Zeming ZHOU, Chaohui LIN, Zheng ZHANG, Guoxin LU