Patents by Inventor Riping CHENG

Riping CHENG 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).

  • Method for determining magnetic field parameter threshold of negative-pressure arc welding
    Patent number: 12496651
    Abstract: The present disclosure provides a method for determining a magnetic field parameter threshold of negative-pressure arc (NPA) welding including the following steps: forming a control equation using the Navier-Stokes equation, heat transfer equation, and Maxwell's electromagnetic equation; establishing a geometric model and meshing; setting material parameters; setting initial conditions and boundary conditions; conducting parameterized scanning, setting solver, collecting NPA data, and fitting NPA function; afterwards, performing numerical simulation calculation of NPA under different conditions, and then fitting the calculated NPA threshold data, such that the equation for determining the magnetic field parameter threshold of NPA welding can be obtained.
    Type: Grant
    Filed: January 17, 2025
    Date of Patent: December 16, 2025
    Assignee: Shanghai University of Engineering Science
    Inventors: Ying Wang, Jian Luo, Riping Cheng, Kanghui Zheng, Kefeng Xu
  • METHOD FOR DETERMINING MAGNETIC FIELD PARAMETER THRESHOLD OF NEGATIVE-PRESSURE ARC WELDING
    Publication number: 20250276397
    Abstract: The present disclosure provides a method for determining a magnetic field parameter threshold of negative-pressure arc (NPA) welding including the following steps: forming a control equation using the Navier-Stokes equation, heat transfer equation, and Maxwell's electromagnetic equation; establishing a geometric model and meshing; setting material parameters; setting initial conditions and boundary conditions; conducting parameterized scanning, setting solver, collecting NPA data, and fitting NPA function; afterwards, performing numerical simulation calculation of NPA under different conditions, and then fitting the calculated NPA threshold data, such that the equation for determining the magnetic field parameter threshold of NPA welding can be obtained.
    Type: Application
    Filed: January 17, 2025
    Publication date: September 4, 2025
    Inventors: Ying WANG, Jian LUO, Riping CHENG, Kanghui ZHENG, Kefeng XU