Patents by Inventor Dinakar Sagapuram

Dinakar Sagapuram 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).

  • Patent number: 10843274
    Abstract: A method for controlling flow localization in machining process is disclosed. By application of a constraint of sufficient level in the deformation zone and modifying the surface boundary conditions, suppression of unsteady flow and flow instabilities is achieved. The method enhances machined component quality by ensuring a uniform deformation state on the machined surface. Machined components are produced by ensuing uniform deformation by adopting constrained-cutting process for suppressing the instabilities and unsteady flow through a pre-determined location of the constraint of the constrained machining process relative to the machining tool.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: November 24, 2020
    Assignee: Purdue Research Foundation
    Inventors: Dinakar Sagapuram, Kevin Paul Trumble, Walter Dale Compton, Srinivasan Chandrasekar
  • Patent number: 10364477
    Abstract: Processes for producing continuous bulk forms of iron-silicon alloys and bulk forms produced thereby. Such a bulk form is continuous in a longitudinal direction thereof and has a continuous cross-sectional form transverse to the longitudinal direction. The bulk form is formed of an Fe—Si alloy and has a crystallographic texture that comprises <111> and {110} fibers that are inclined relative to the longitudinal direction. The bulk form may be produced by a process that includes deforming a solid body formed of an Fe—Si alloy with a cutting tool in a single step to continuously produce a continuous bulk form from material obtained from the solid body.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: July 30, 2019
    Assignee: Purdue Research Foundation
    Inventors: Andrew Benjamin Kustas, Dinakar Sagapuram, Kevin Paul Trumble, Srinivasan Chandrasekar
  • Patent number: 9687895
    Abstract: Processes by which bulk forms can be produced in a single continuous operation, as opposed to multi-stage deformation processes that involve a series of separate and discrete deformation operations or stages. Such processes generally entail deforming a solid body using a large-strain extrusion machining technique and deformation conditions that obtain a predetermined crystallographic texture in the continuous bulk form that differs from the crystallographic texture of the solid body.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: June 27, 2017
    Assignee: Purdue Research Foundation
    Inventors: Srinivasan Chandrasekar, Kevin Trumble, Wilfredo Moscoso, Mert Efe, Dinakar Sagapuram, Christopher J. Saldana, James Bradley Mann, Walter Dale Compton
  • Publication number: 20160018811
    Abstract: A method for controlling flow localization in machining process is disclosed. By application of a constraint of sufficient level in the deformation zone and modifying the surface boundary conditions, suppression of unsteady flow and flow instabilities is achieved. The method enhances machined component quality by ensuring a uniform deformation state on the machined surface. Machined components are produced by ensuing uniform deformation by adopting constrained-cutting process for suppressing the instabilities and unsteady flow through a pre-determined location of the constraint of the constrained machining process relative to the machining tool.
    Type: Application
    Filed: July 17, 2015
    Publication date: January 21, 2016
    Applicant: Purdue Research Foundation
    Inventors: Dinakar Sagapuram, Kevin Paul Trumble, Walter Dale Compton, Srinivasan Chandrasekar
  • Publication number: 20140017113
    Abstract: Processes by which bulk forms can be produced in a single continuous operation, as opposed to multi-stage deformation processes that involve a series of separate and discrete deformation operations or stages. Such processes generally entail deforming a solid body using a large-strain extrusion machining technique and deformation conditions that obtain a predetermined crystallographic texture in the continuous bulk form that differs from the crystallographic texture of the solid body.
    Type: Application
    Filed: January 6, 2012
    Publication date: January 16, 2014
    Applicant: PURDUE RESEARCH FOUNDATION
    Inventors: Srinivasan Chandrasekar, Kevin Trumble, Wilfredo Moscoso, Mert Efe, Dinakar Sagapuram, Christopher J. Saldana, James Bradley Mann, Walter Dale Compton