Patents by Inventor Ranadip Acharya

Ranadip Acharya 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).

  • Publication number: 20200331059
    Abstract: A method of additively manufacturing includes generating a thermal model driven scan map that identifies an equiaxed cap region, a single crystal (SX) region, and a columnar to equiaxed transition (CET) region; and forming an active melt pool with respect to the thermal model driven scan map such that a depth of the active melt pool is greater than a thickness of the equiaxed transition (CET) region.
    Type: Application
    Filed: April 16, 2019
    Publication date: October 22, 2020
    Applicant: United Technologies Corporation
    Inventors: Ranadip Acharya, Vijay Narayan Jagdale
  • Patent number: 10795334
    Abstract: A method of providing additive manufacturing includes the steps of (a) developing a plurality of layers to result in a final shape product, (b) developing a space filling algorithm to develop a path, (c) estimating a temperature at a location along the path in an existing direction of the path, and (d) comparing the estimated temperature to a desired temperature and altering the existing direction of the path should the estimated temperature differ from the desired temperature by a predetermined amount. An additive manufacturing system is also disclosed.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: October 6, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Ranadip Acharya, Abhijit Chakraborty, Sergei F. Burlatsky, Michael A. Klecka, Jeffrey Michael Mendoza
  • Patent number: 10688588
    Abstract: A rotating tool system attachment on the spindle of a computer numerical control (“CNC”) machine includes a rotating assembly mounted on a static assembly. The rotating assembly provides a continuous supply of a wire material for deposition on a substrate during an additive manufacturing process. The rotating assembly includes a material supply housing a feedstock of wire mounted on a rotating spindle and a wire feeder configured to draw the wire from the wire supply and provide the wire for application during the additive manufacturing process. The tool system can be attached to the spindle of CNC machine to provide additive manufacturing capabilities to the CNC machine.
    Type: Grant
    Filed: June 12, 2017
    Date of Patent: June 23, 2020
    Assignee: Raytheon Technologies Corporation
    Inventors: Wendell V. Twelves, Jr., Tahany Ibrahim El-Wardany, Sergey Mironets, Ranadip Acharya, William K. Tredway, John M. Milton-Benoit
  • Publication number: 20200130268
    Abstract: An additive manufacturing assembly includes a substrate, a nozzle for depositing additive material onto the substrate, and at least one cooling nozzle for supplying a cooling fluid to at least a portion of the substrate. The at least one cooling nozzle is movable relative to the substrate. A controller is operably coupled to the cooling nozzle. The controller is programmed to control operation of the at least one cooling nozzle to achieve a desired convection heat transfer coefficient of the additive material.
    Type: Application
    Filed: October 29, 2018
    Publication date: April 30, 2020
    Inventors: Ranadip Acharya, Alexander Staroselsky, Tahany Ibrahim El-Wardany, Colette Opsahl Fennessy
  • Publication number: 20200086387
    Abstract: A process for additive manufacturing of a metal alloy material is provided that includes: a) providing a feedstock powder comprising base powder particles with nanoparticles attached to surfaces of the base powder particles; b) providing an additive manufacturing system with a laser power source relatively movable at a scan speed; c) wherein the additive manufacturing system has a process window for the feedstock powder; and d) exposing the feedstock powder to a predetermined power input from the laser power source at a predetermined scan speed to produce the metal alloy material. The concentration by volume of nanoparticles within the feedstock powder is such that independent first and second microstructures may be produced within the metal alloy material.
    Type: Application
    Filed: September 14, 2018
    Publication date: March 19, 2020
    Inventors: John A. Sharon, Paul Sheedy, Ranadip Acharya, Vijay Narayan Jagdale
  • Publication number: 20200041974
    Abstract: A method of providing additive manufacturing includes the steps of (a) developing a plurality of layers to result in a final shape product, (b) developing a space filling algorithm to develop a path, (c) estimating a temperature at a location along the path in an existing direction of the path, and (d) comparing the estimated temperature to a desired temperature and altering the existing direction of the path should the estimated temperature differ from the desired temperature by a predetermined amount. An additive manufacturing system is also disclosed.
    Type: Application
    Filed: July 31, 2018
    Publication date: February 6, 2020
    Inventors: Ranadip Acharya, Abhijit Chakraborty, Sergei F. Burlatsky, Michael A. Klecka, Jeffrey Michael Mendoza
  • Patent number: 10525629
    Abstract: An additive manufacturing (AM) system comprising a process distortion compensation computing system configured to determine a digital nominal model that represents a physical target object excluding a distortion, and a digital distortion model that represents the physical target object including at least one distortion. The AM system further comprises an AM peripheral device configured to form a three-dimensional physical object based on a digital compensation model. The process distortion compensation computing system determines a material volume difference between the digital nominal model and the digital distortion model, and generates the digital compensation model that compensates for the material volume difference.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: January 7, 2020
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Qingqing Zhang, Yanzhi Chen, Ranadip Acharya, Tahany Ibrahim El-Wardany, Vijay Narayan Jagdale, Changle Li, Colette Opsahl Fennessy
  • Publication number: 20190377843
    Abstract: An additive manufacturing (AM) system includes a process distortion compensation computing system and an AM peripheral device. The process distortion compensation computing system determines a digital nominal model that represents a physical target object excluding a distortion, and a digital distortion model that represents the physical target object including at least one distortion. The AM peripheral device forms a three-dimensional (3D) physical object based on a digital compensation model. The process distortion compensation computing system also determines a digital skeletal model indicating a predicted change in at least one of the shape and volume of the nominal model, and generates the digital compensation model based on the skeletal model that compensates for the at least one distortion.
    Type: Application
    Filed: June 5, 2019
    Publication date: December 12, 2019
    Inventors: Yanzhi Chen, Qingqing Zhang, Tahany Ibrahim El-Wardany, Ranadip Acharya, Colette Opsahl Fennessy, William K. Tredway
  • Patent number: 10376960
    Abstract: An additively manufactured alloy component has a first portion formed of the alloy and having a first grain size, and a second portion formed of the alloy and having a second grain size smaller than the first grain size. In an embodiment, the alloy component is an alloy turbine disk, the first portion is a rim region of the alloy turbine disk, and the second portion is a hub region of the alloy turbine disk. The first and second grain sizes may be achieved by controllably varying the laser power and/or scan speed during additive manufacturing.
    Type: Grant
    Filed: January 18, 2017
    Date of Patent: August 13, 2019
    Assignee: United Technologies Corporation
    Inventors: John A. Sharon, Daniel V. Viens, Tahany Ibrahim El-Wardany, Gajawalli V. Srinivasan, Joseph J. Sangiovanni, Ranadip Acharya
  • Patent number: 10372110
    Abstract: A method of producing a heat exchanger includes designing the heat exchanger to include a wall with a target thickness. A model is created relating process parameters to geometry of a single track melt pool and relating the single track melt pool geometry to a heat exchanger wall thickness. At least one variable process parameter is defined. The model, heat exchanger wall target thickness, and variable process parameters are used to identify a set of process parameters to produce the heat exchanger wall target thickness. The melt pool geometry is predicted based on the model and process parameters. The heat exchanger wall target thickness is predicted based on the melt pool geometry. The process parameters that will produce the heat exchanger wall target thickness are identified. The additive manufacturing process is controlled based upon the identified set of process parameters to create the heat exchanger wall target thickness.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: August 6, 2019
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Vijay Jagdale, Ranadip Acharya, Tahany Ibrahim El-Wardany, Colette O. Fennessy, Sergey Mironets, Diana Giulietti, Kiley James Versluys
  • Publication number: 20190099951
    Abstract: An additive manufacturing (AM) system comprising a process distortion compensation computing system configured to determine a digital nominal model that represents a physical target object excluding a distortion, and a digital distortion model that represents the physical target object including at least one distortion. The AM system further comprises an AM peripheral device configured to form a three-dimensional physical object based on a digital compensation model. The process distortion compensation computing system determines a material volume difference between the digital nominal model and the digital distortion model, and generates the digital compensation model that compensates for the material volume difference.
    Type: Application
    Filed: October 3, 2017
    Publication date: April 4, 2019
    Inventors: Qingqing Zhang, Yanzhi Chen, Ranadip Acharya, Tahany Ibrahim El-Wardany, Vijay Narayan Jagdale, Changle Li, Colette Opsahl Fennessy
  • Publication number: 20180356778
    Abstract: A method for modeling additive manufacturing of a part, includes (i) constructing a model for estimating output of a simulated additive manufacturing process based upon part design, energy equation and at least one additional relationship selected from the group consisting of phase field equation, concentration equation and stress equation; (ii) entering process operating parameters into the model to produce an output; (iii) comparing the output to acceptance criteria to determine whether the output is acceptable or unacceptable; (iv) for acceptable output, adding operating parameters which resulted in the acceptable output to a process map for additive manufacturing the part; and (v) repeating steps (ii) through (iv) for different operating parameters until the process map is complete.
    Type: Application
    Filed: June 13, 2017
    Publication date: December 13, 2018
    Applicant: United Technologies Corporation
    Inventors: Ranadip Acharya, Alexander Staroselsky, John A. Sharon, Tahany Ibrahim El-Wardany
  • Publication number: 20180354058
    Abstract: A rotating tool system attachment on the spindle of a computer numerical control (“CNC”) machine includes a rotating assembly mounted on a static assembly. The rotating assembly provides a continuous supply of a wire material for deposition on a substrate during an additive manufacturing process. The rotating assembly includes a material supply housing a feedstock of wire mounted on a rotating spindle and a wire feeder configured to draw the wire from the wire supply and provide the wire for application during the additive manufacturing process. The tool system can be attached to the spindle of CNC machine to provide additive manufacturing capabilities to the CNC machine.
    Type: Application
    Filed: June 12, 2017
    Publication date: December 13, 2018
    Inventors: Wendell V. Twelves, JR., Tahany Ibrahim El-Wardany, Sergey Mironets, Ranadip Acharya, William K. Tredway, John M. Milton-Benoit
  • Publication number: 20180348736
    Abstract: A method includes accessing a first model defining a shape of a part. The shape of the part is segregated into a plurality of predefined shapes selected from a library of predefined shapes. The predefined models for each of plurality of predefined shapes are assembled into a second model defining the shape of the part. The part is additively manufactured according to the second model.
    Type: Application
    Filed: June 5, 2017
    Publication date: December 6, 2018
    Inventors: John A. Sharon, Vijay Narayan Jagdale, Sergei F. Burlatsky, David Ulrich Furrer, Tahany Ibrahim El-Wardany, Ranadip Acharya, Alexander Staroselsky
  • Publication number: 20180200798
    Abstract: An additively manufactured alloy component has a first portion formed of the alloy and having a first grain size, and a second portion formed of the alloy and having a second grain size smaller than the first grain size. In an embodiment, the alloy component is an alloy turbine disk, the first portion is a rim region of the alloy turbine disk, and the second portion is a hub region of the alloy turbine disk. The first and second grain sizes may be achieved by controllably varying the laser power and/or scan speed during additive manufacturing.
    Type: Application
    Filed: January 18, 2017
    Publication date: July 19, 2018
    Inventors: John A. Sharon, Daniel V. Viens, Tahany Ibrahim El-Wardany, Gajawalli V. Srinivasan, Joseph J. Sangiovanni, Ranadip Acharya
  • Publication number: 20170364058
    Abstract: A method of producing a heat exchanger includes designing the heat exchanger to include a wall with a target thickness. A model is created relating process parameters to geometry of a single track melt pool and relating the single track melt pool geometry to a heat exchanger wall thickness. At least one variable process parameter is defined. The model, heat exchanger wall target thickness, and variable process parameters are used to identify a set of process parameters to produce the heat exchanger wall target thickness. The melt pool geometry is predicted based on the model and process parameters. The heat exchanger wall target thickness is predicted based on the melt pool geometry. The process parameters that will produce the heat exchanger wall target thickness are identified. The additive manufacturing process is controlled based upon the identified set of process parameters to create the heat exchanger wall target thickness.
    Type: Application
    Filed: June 17, 2016
    Publication date: December 21, 2017
    Inventors: Vijay Jagdale, Ranadip Acharya, Tahany Ibrahim El-Wardany, Colette O. Fennessy, Sergey Mironets, Diana Giulietti, Kiley James Versluys