Patents by Inventor Abhijit Chakraborty

Abhijit Chakraborty 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: 11938684
    Abstract: An end effector for welding composite components includes an end effector housing and a welding member mounted to the end effector housing. The end effector further includes a leading roller mounted to the end effector housing forward of the welding member and at least one follower roller mounted to the end effector housing aft of the welding member. The end effector further includes at least one first cooling air jet positioned to direct a first stream of cooling air toward the at least one follower roller.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: March 26, 2024
    Assignee: Rohr, Inc.
    Inventors: Wenping Zhao, John J. Gangloff, Jr., Michael A. Klecka, Zhigang Wang, Abhijit Chakraborty
  • Publication number: 20230031155
    Abstract: An end effector for welding composite components includes an end effector housing and a welding member mounted to the end effector housing. The end effector further includes a leading roller mounted to the end effector housing forward of the welding member and at least one follower roller mounted to the end effector housing aft of the welding member. The end effector further includes at least one first cooling air jet positioned to direct a first stream of cooling air toward the at least one follower roller.
    Type: Application
    Filed: August 2, 2021
    Publication date: February 2, 2023
    Inventors: Wenping Zhao, John J. Gangloff, JR., Michael A. Klecka, Zhigang Wang, Abhijit Chakraborty
  • Publication number: 20220227062
    Abstract: A material deposition process including in situ sensor analysis of a component in a formation state is provided. The material deposition process is implemented in part by a sensor device of an additive manufacturing machine producing the component. The material deposition process includes sensing, by the sensing device, in situ physical properties of an area of interest of the component during a three-dimensional object production. Compliance to specifications or defects are then detected in the in situ physical properties with respect to pre-specified material requirements. The defects are analyzed to determine corrective actions, and an updated three-dimensional object production, which includes the corrective actions, is implemented to complete the component.
    Type: Application
    Filed: April 5, 2022
    Publication date: July 21, 2022
    Inventors: Joseph V. Mantese, Abhijit Chakraborty
  • Patent number: 11292198
    Abstract: A material deposition process including in situ sensor analysis of a component in a formation state is provided. The material deposition process is implemented in part by a sensor device of an additive manufacturing machine producing the component. The material deposition process includes sensing, by the sensing device, in situ physical properties of an area of interest of the component during a three-dimensional object production. Compliance to specifications or defects are then detected in the in situ physical properties with respect to pre-specified material requirements. The defects are analyzed to determine corrective actions, and an updated three-dimensional object production, which includes the corrective actions, is implemented to complete the component.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: April 5, 2022
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventors: Joseph V. Mantese, Abhijit Chakraborty
  • Patent number: 11097487
    Abstract: An additive manufacturing system includes an additive manufacturing (AM) device, a first sensor device, and a compute device. The AM device is configured to form a bulk component in a layer-by-layer manner, by at least iteratively depositing a first layer of raw material onto a working surface in a deposition chamber, consolidating the initial layer into an initial additive portion of the bulk component, then forming subsequent additive portions of the bulk component by depositing and consolidating a subsequent plurality of layers of the raw material onto the first additive portion. The first sensor device is configured to measure an actual composition of at least one first byproduct portion formed upon consolidation of one of the first or subsequent layers of raw material in the deposition chamber. The compute device includes a processor and a memory, and is communicatively coupled to the additive manufacturing device and first sensor device.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: August 24, 2021
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Tahany Ibrahim El-Wardany, Joseph V. Mantese, Abhijit Chakraborty, Paul Attridge
  • Patent number: 10976728
    Abstract: A robotic deburring process that automatically, accurately, and efficiently removes burrs from a workpiece. The robotic deburring process uses CAM location data to establish deburring trajectory, physics based machining models to predict burr type and size, and force control functions to compensate inaccuracies due of inaccuracies of robots arms.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: April 13, 2021
    Assignee: Raytheon Technologies Corporation
    Inventors: Zhigang Wang, Michael A. Klecka, Abhijit Chakraborty, Changsheng Guo, Jeffrey Michael Mendoza, Edward Marchitto
  • 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
  • Publication number: 20200290207
    Abstract: A process of deburring a workpiece comprising installing a workpiece onto a machine table proximate a robot, the workpiece having a surface, the robot having at least one force sensor and a spindle load sensor associated with a spindle coupled to a cutting tool, the robot having at least one joint configured to be actuated by a joint actuator; the robot being coupled to a controller; generating joint encoder signals with the controller, the joint encoder signals configured to direct the joint actuator; sensing contact forces between the cutting tool of the robot and the surface of the workpiece; determining a deburring path of the cutting tool to deburr the workpiece; and controlling the robotic deburring process by use of the joint encoder signals, a physics based model of burr size and material removal, a nominal trajectory and an actual trajectory of the cutting tool center point position.
    Type: Application
    Filed: March 11, 2019
    Publication date: September 17, 2020
    Applicant: United Technologies Corporation
    Inventors: Zhigang Wang, Michael A. Klecka, Abhijit Chakraborty, Jeffrey Michael Mendoza
  • Publication number: 20200198246
    Abstract: An additive manufacturing system includes an additive manufacturing (AM) device, a first sensor device, and a compute device. The AM device is configured to form a bulk component in a layer-by-layer manner, by at least iteratively depositing a first layer of raw material onto a working surface in a deposition chamber, consolidating the initial layer into an initial additive portion of the bulk component, then forming subsequent additive portions of the bulk component by depositing and consolidating a subsequent plurality of layers of the raw material onto the first additive portion. The first sensor device is configured to measure an actual composition of at least one first byproduct portion formed upon consolidation of one of the first or subsequent layers of raw material in the deposition chamber. The compute device includes a processor and a memory, and is communicatively coupled to the additive manufacturing device and first sensor device.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 25, 2020
    Inventors: Tahany Ibrahim El-Wardany, Joseph V. Mantese, Abhijit Chakraborty, Paul Attridge
  • Publication number: 20200183363
    Abstract: A robotic deburring process that automatically, accurately, and efficiently removes burrs from a workpiece. The robotic deburring process uses CAM location data to establish deburring trajectory, physics based machining models to predict burr type and size, and force control functions to compensate inaccuracies due of inaccuracies of robots arms.
    Type: Application
    Filed: December 10, 2018
    Publication date: June 11, 2020
    Inventors: Zhigang Wang, Michael A. Klecka, Abhijit Chakraborty, Changsheng Guo, Jeffrey Michael Mendoza, Edward Marchitto
  • Publication number: 20200122401
    Abstract: A material deposition process including in situ sensor analysis of a component in a formation state is provided. The material deposition process is implemented in part by a sensor device of an additive manufacturing machine producing the component. The material deposition process includes sensing, by the sensing device, in situ physical properties of an area of interest of the component during a three-dimensional object production. Compliance to specifications or defects are then detected in the in situ physical properties with respect to pre-specified material requirements. The defects are analyzed to determine corrective actions, and an updated three-dimensional object production, which includes the corrective actions, is implemented to complete the component.
    Type: Application
    Filed: October 22, 2018
    Publication date: April 23, 2020
    Inventors: Joseph V. Mantese, Abhijit Chakraborty
  • 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