Patents by Inventor Moiz S VOHRA

Moiz S VOHRA 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).

  • Finishing a surface of a component made by additive manufacturing
    Patent number: 11123840
    Abstract: A method and apparatus for finishing a surface of a metal component made by additive manufacturing are provided. The method comprises: containing the component 41 in a fluid 43 that comprises abrasive particles 48; and generating pressure fluctuations that produce acoustic cavitation in the fluid by applying ultrasonic vibration into the fluid by an ultrasonic horn 45, thereby removing material from the surface of the component by a combination of cavitation bubble collapse on the surface and the striking of the surface by abrasive particles 48 accelerated by cavitation bubble collapse.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: September 21, 2021
    Assignee: ROLLS-ROYCE plc
    Inventors: Kai Liang Tan, Moiz S Vohra, Wei Lun Tan, Arun Prasanth Nagalingam, Swee Hock Yeo, Arthur Wee
  • FINISHING A SURFACE OF A COMPONENT MADE BY ADDITIVE MANUFACTURING
    Publication number: 20200164487
    Abstract: A method and apparatus for finishing a surface of a metal component made by additive manufacturing are provided. The method comprises: containing the component 41 in a fluid 43 that comprises abrasive particles 48; and generating pressure fluctuations that produce acoustic cavitation in the fluid by applying ultrasonic vibration into the fluid by an ultrasonic horn 45, thereby removing material from the surface of the component by a combination of cavitation bubble collapse on the surface and the striking of the surface by abrasive particles 48 accelerated by cavitation bubble collapse.
    Type: Application
    Filed: November 21, 2019
    Publication date: May 28, 2020
    Inventors: Kai Liang TAN, Moiz S VOHRA, Wei Lun TAN, Arun Prasanth NAGALINGAM, Swee Hock YEO, Arthur WEE