Patents by Inventor Xusheng CHANG

Xusheng CHANG 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).

  • Fine blanking method and device for forming friction plates with friction material layers
    Patent number: 11498110
    Abstract: A fine blanking device and method for forming a friction plate with friction material layers. The fine blanking device includes an upper die, a lower die, a guide mechanism, a punch and a counter punch. Upper and lower blank holders are respectively provided at outer circumferences of the punch and the counter punch. The upper and lower blank holders are respectively provided with a buffer mechanism. Friction material powders are sintered on both sides of the base sheet. The friction material layers are trimmed and planished by hot pressing. The base sheet with the friction material layers is fixed by the upper blank holder and the lower blank holder. A tooth profile with an absolute shear fractural surface is formed. The fixing indentation of the V-shaped structure of the friction material layers is cut off for obtaining a finished friction plate product with the friction material layers.
    Type: Grant
    Filed: August 9, 2020
    Date of Patent: November 15, 2022
    Assignees: Southwest Technology and Engineering Research Institute, Harbin Institute of Technology at Weihai
    Inventors: Qiang Chen, Gang Chen, Xusheng Chang, Hongming Zhang, Dayu Shu, Hong Zhan, Lin Xiang, Yunliang Xiang, Yan Tang
  • FINE BLANKING METHOD AND DEVICE FOR FORMING FRICTION PLATES WITH FRICTION MATERIAL LAYERS
    Publication number: 20210316354
    Abstract: A fine blanking device and method for forming a friction plate with friction material layers. The fine blanking device includes an upper die, a lower die, a guide mechanism, a punch and a counter punch. Upper and lower blank holders are respectively provided at outer circumferences of the punch and the counter punch. The upper and lower blank holders are respectively provided with a buffer mechanism. Friction material powders are sintered on both sides of the base sheet. The friction material layers are trimmed and planished by hot pressing. The base sheet with the friction material layers is fixed by the upper blank holder and the lower blank holder. A tooth profile with an absolute shear fractural surface is formed. The fixing indentation of the V-shaped structure of the friction material layers is cut off for obtaining a finished friction plate product with the friction material layers.
    Type: Application
    Filed: August 9, 2020
    Publication date: October 14, 2021
    Inventors: Qiang CHEN, Gang CHEN, Xusheng CHANG, Hongming ZHANG, Dayu SHU, Hong ZHAN, Lin XIANG, Yunliang XIANG, Yan TANG