Patents by Inventor HUAI -XIANG LIU

HUAI -XIANG 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).

  • Forming die with flexible blank holder
    Patent number: 9796011
    Abstract: A forming die with a flexible blank holder is provided. The forming die includes an upper die set, a lower die set, and a blank holder with a flexible pad. The upper die set has an upper die base and an upper die insert provided on the upper die base and has a cavity surface. The lower die set has a lower die base, an elastic member on the lower die base, and a lower die punch on the lower die base. Guide posts are provided between the upper die set and the lower die set to define relative positions of the two die sets. Through relative movement of the upper and the lower die sets, a blank placed on the blank holder there between is formed by forming. During the forming, the flexible pad is tightly pressed against the blank under the pressing force of the elastic member.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: October 24, 2017
    Assignee: National Kaohsiung First University of Science and Technology
    Inventors: Bor-Tsuen Lin, Kuan-Yu Su, Huai-Xiang Liu, Cheng-Yu Yang
  • FORMING DIE WITH FLEXIBLE BLANK HOLDER
    Publication number: 20160368036
    Abstract: A forming die with a flexible blank holder is provided. The forming die includes an upper die set, a lower die set, and a blank holder with a flexible pad. The upper die set has an upper die base and an upper die insert provided on the upper die base and has a cavity surface. The lower die set has a lower die base, an elastic member on the lower die base, and a lower die punch on the lower die base. Guide posts are provided between the upper die set and the lower die set to define relative positions of the two die sets. Through relative movement of the upper and the lower die sets, a blank placed on the blank holder there between is formed by forming. During the forming, the flexible pad is tightly pressed against the blank under the pressing force of the elastic member.
    Type: Application
    Filed: September 17, 2015
    Publication date: December 22, 2016
    Inventors: BOR-TSUEN LIN, KUAN-YU SU, HUAI -XIANG LIU, CHENG-YU YANG