Patents by Inventor M. RAGHUNANDAN

M. RAGHUNANDAN 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 of repairing a component using an additive manufacture replacement coupon, and alloy for additive manufacturing
    Patent number: 11224915
    Abstract: A method for forming a secondary component from an original component having an original shape includes separating the original component into a parent component and a replaced portion, and forming a replacement coupon using an additive manufacturing system. The replacement coupon is shaped to substantially match the original shape of the replaced portion. The method further includes coupling the replacement coupon to the parent component to form the secondary component. The method also includes at least one of (i) removing the replacement coupon from a build plate of the additive manufacturing system prior to application of any heat treatment to the as-built replacement coupon, wherein the replacement coupon maintains a near-net original shape of the replaced portion after removal, and (ii) entering the secondary component into normal duty with no hot isostatic press treatment of the replacement coupon having been performed.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: January 18, 2022
    Assignee: General Electric Company
    Inventors: Dheepa Srinivasan, Joydeep Pal, M. Raghunandan, Rohit Sen, Sridhar Balaram, Mohamed Aleem
  • METHOD OF REPAIRING A COMPONENT USING AN ADDITIVE MANUFACTURE REPLACEMENT COUPON, AND ALLOY FOR ADDITIVE MANUFACTURING
    Publication number: 20180345381
    Abstract: A method for forming a secondary component from an original component having an original shape includes separating the original component into a parent component and a replaced portion, and forming a replacement coupon using an additive manufacturing system. The replacement coupon is shaped to substantially match the original shape of the replaced portion. The method further includes coupling the replacement coupon to the parent component to form the secondary component. The method also includes at least one of (i) removing the replacement coupon from a build plate of the additive manufacturing system prior to application of any heat treatment to the as-built replacement coupon, wherein the replacement coupon maintains a near-net original shape of the replaced portion after removal, and (ii) entering the secondary component into normal duty with no hot isostatic press treatment of the replacement coupon having been performed.
    Type: Application
    Filed: May 3, 2018
    Publication date: December 6, 2018
    Inventors: Dheepa SRINIVASAN, Joydeep PAL, M. RAGHUNANDAN, Rohit SEN, Sridhar BALARAM, Mohamed ALEEM