Patents by Inventor J N Goan

J N Goan 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 and system of reporting stretching failure in stamping die development
    Patent number: 11651120
    Abstract: A system is provided for producing a die that forms a sheet metal blank into a workpiece for a stamped vehicle component. The system includes a processor receiving design data associated with the workpiece. The processor produces a computer simulation based on the data and determines a stretching index of the workpiece. The processor compares the stretching index to an index threshold. The processor generates a stretching failure signal when the stretching index is above the index threshold. The processor generates a stretching acceptance signal, and a display device indicates that the workpiece has a fracture when the stretching index is below the index threshold. The display device indicates that the workpiece does not have the fracture, when the display device receives the stretching acceptance signal, such that a die manufacturing device transforms a tool material into the die.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: May 16, 2023
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Ziqiang Sheng, J N Goan, Adam R Groseclose, Kleber M Cabral
  • METHOD AND SYSTEM OF REPORTING STRETCHING FAILURE IN STAMPING DIE DEVELOPMENT
    Publication number: 20220100923
    Abstract: A system is provided for producing a die that forms a sheet metal blank into a workpiece for a stamped vehicle component. The system includes a processor receiving design data associated with the workpiece. The processor produces a computer simulation based on the data and determines a stretching index of the workpiece. The processor compares the stretching index to an index threshold. The processor generates a stretching failure signal when the stretching index is above the index threshold. The processor generates a stretching acceptance signal, and a display device indicates that the workpiece has a fracture when the stretching index is below the index threshold. The display device indicates that the workpiece does not have the fracture, when the display device receives the stretching acceptance signal, such that a die manufacturing device transforms a tool material into the die.
    Type: Application
    Filed: September 30, 2020
    Publication date: March 31, 2022
    Inventors: Ziqiang Sheng, J N Goan, Adam R. Groseclose, Kleber M. Cabral