公开(公告)号：US11565475B2

公开(公告)日：2023-01-31

申请号：US16845312

申请日：2020-04-10

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Christopher T. Chungbin ,  Chu-Heng Liu ,  Scott J. Vader ,  Zachary S. Vader ,  Viktor Sukhotskiy ,  Denis Cormier ,  Kareem Tawil

IPC: B29C64/393 ,  B29C64/112 ,  B29C64/188 ,  B33Y50/02 ,  B33Y10/00

Abstract: A method operates a three-dimensional (3D) metal object manufacturing system to compensate for errors that occur during object formation. In the method, thermal image data and dimensional image data of a metal object being formed by the 3D metal object manufacturing system is generated prior to completion of the metal object. Thermal conditions are identified from these data and compared to predetermined ranges corresponding to the identified thermal conditions to identify one or more errors. For identified errors outside a corresponding predetermined difference range, the method performs an error compensation technique. The error compensation includes modification of a surface data model, modification of machine-ready instructions, or operation of a subtractive device.

公开(公告)号：US20200324486A1

公开(公告)日：2020-10-15

申请号：US16845312

申请日：2020-04-10

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Christopher T. Chungbin ,  Chu-Heng Liu ,  Scott J. Vader ,  Zachary S. Vader ,  Viktor Sukhotskiy ,  Denis Cormier ,  Kareem Tawil

IPC: B29C64/393 ,  B29C64/112 ,  B29C64/188

Abstract: A method operates a three-dimensional (3D) metal object manufacturing system to compensate for errors that occur during object formation. In the method, thermal image data and dimensional image data of a metal object being formed by the 3D metal object manufacturing system is generated prior to completion of the metal object. Thermal conditions are identified from these data and compared to predetermined ranges corresponding to the identified thermal conditions to identify one or more errors. For identified errors outside a corresponding predetermined difference range, the method performs an error compensation technique. The error compensation includes modification of a surface data model, modification of machine-ready instructions, or operation of a subtractive device.

公开(公告)号：US11886759B2

公开(公告)日：2024-01-30

申请号：US16589969

申请日：2019-10-01

Applicant: Xerox Corporation ,  Palo Alto Research Center Incorporated

Inventor： David A. Mantell ,  Christopher T. Chungbin ,  Daniel R. Cormier ,  Scott J. Vader ,  Zachary S. Vader ,  Viktor Sukhotskiy ,  Raja Bala ,  Walter Hsiao

IPC: G06F3/12 ,  B33Y50/00 ,  G06N20/00 ,  B22D23/00 ,  G05B19/19 ,  G05B19/4099 ,  B22F10/22 ,  B22F12/90 ,  B22F10/31 ,  B22F10/85 ,  B33Y30/00 ,  G06F119/18 ,  G06F30/00 ,  B22F12/00 ,  B22F12/33 ,  B22F10/32

CPC classification number: G06F3/1208 ,  B22D23/003 ,  B22F10/22 ,  B22F10/31 ,  B22F10/85 ,  B22F12/90 ,  B33Y50/00 ,  G05B19/19 ,  G05B19/4099 ,  G06N20/00 ,  B22F10/32 ,  B22F12/222 ,  B22F12/224 ,  B22F12/33 ,  B33Y30/00 ,  G05B2219/35134 ,  G05B2219/49007 ,  G06F30/00 ,  G06F2119/18

Abstract: A method operates a three-dimensional (3D) metal object manufacturing system to compensate for displacement errors that occur during object formation. In the method, image data of a metal object being formed by the 3D metal object manufacturing system is generated prior to completion of the metal object and compared to original 3D object design data of the object to identify one or more displacement errors. For the displacement errors outside a predetermined difference range, the method modifies machine-ready instructions for forming metal object layers not yet formed to compensate for the identified displacement errors and operates the 3D metal object manufacturing system using the modified machine-ready instructions.

公开(公告)号：US11440321B2

公开(公告)日：2022-09-13

申请号：US16712618

申请日：2019-12-12

Applicant: XEROX CORPORATION

Inventor： Christopher T. Chungbin ,  Scott J. Vader ,  Zachary S. Vader ,  Kareem N. Tawil ,  William R. Harris ,  David A. Mantell ,  Viktor Sukhotskiy

IPC: B29C64/209 ,  B29C64/112 ,  B33Y70/00 ,  B41J2/14 ,  B33Y10/00 ,  B33Y30/00 ,  B22D23/00 ,  B28B1/00

Abstract: A jetting assembly that can be used to print a high-temperature print material such as a metal or metal alloy, an aqueous ink, or another material, includes an actuator for heating a gas such as a non-volatile gas within a gas cavity. The actuator rapidly heats the gas within the gas cavity, which rapidly increases a volume of the gas, thereby applying a pressure to the print material within an expansion channel that is in fluid communication with the gas cavity. In turn, the print material within the expansion channel applies a pressure to the print material within a nozzle bore, which forces a drop of the print material from a nozzle. The jetting assembly further includes a supply inlet that supplies the print material to the expansion chamber and the nozzle bore, for example, from a reservoir.

公开(公告)号：US11235382B2

公开(公告)日：2022-02-01

申请号：US16666212

申请日：2019-10-28

Applicant: XEROX CORPORATION ,  Palo Alto Research Center Incorporated

Inventor： David A. Mantell ,  Daniel R. Cormier ,  Christopher T. Chungbin ,  Zachary S. Vader ,  Viktor Sukhotskiy ,  Scott J. Vader ,  David Tilley

IPC: B22D23/00 ,  B33Y10/00 ,  B29C64/112

Abstract: A method for printing a structure, the structure including a plurality of pillars. The method for printing can include ejecting only a first drop of a print material such as a liquid metal sequentially at each of a plurality of pillar locations, then ejecting only a second drop of the print material sequentially onto the first drop at each of the plurality of print locations. Additional drops can be ejected at two or more of the pillar locations to form the plurality of pillars. Ejecting only a first drop at each pillar location allows the first drop to cure (i.e., cool or dry) before ejecting the second drop. The printer continues printing while the drops cure, thus improving processing efficiency and increasing production throughput.

公开(公告)号：US20210096537A1

公开(公告)日：2021-04-01

申请号：US16589969

申请日：2019-10-01

Applicant: Xerox Corporation ,  Palo Alto Research Center Incorporated

Inventor： David A. Mantell ,  Christopher T. Chungbin ,  Daniel R. Cormier ,  Scott J. Vader ,  Zachary S. Vader ,  Viktor Sukhotskiy ,  Raja Bala ,  Walter Hsiao

IPC: G05B19/4099 ,  B33Y50/00 ,  B22D23/00 ,  G05B19/19 ,  G06N20/00

Abstract: A method operates a three-dimensional (3D) metal object manufacturing system to compensate for displacement errors that occur during object formation. In the method, image data of a metal object being formed by the 3D metal object manufacturing system is generated prior to completion of the metal object and compared to original 3D object design data of the object to identify one or more displacement errors. For the displacement errors outside a predetermined difference range, the method modifies machine-ready instructions for forming metal object layers not yet formed to compensate for the identified displacement errors and operates the 3D metal object manufacturing system using the modified machine-ready instructions.

公开(公告)号：US20190351488A1

公开(公告)日：2019-11-21

申请号：US16412801

申请日：2019-05-15

Applicant: XEROX CORPORATION

Inventor： Scott J. Vader ,  Zachary S. Vader ,  CHU-HENG LIU

IPC: B22F9/06 ,  B22F1/00

Abstract: An ejector of liquid material to form spherical particles includes a crucible for retaining liquid material, an orifice area defining at least one orifice, and an actuator responsive to a voltage signal for causing material to be ejected from the crucible through the orifice. A method comprises applying a voltage signal of a first type and a second type to the actuator, causing a material droplet of a first size and a second size to be ejected through the orifice. Alternately or in addition, the orifice area defines a first orifice having a first diameter and a second orifice having a second diameter different from the first diameter, whereby a signal causes a material droplet of a first size to be ejected through the first orifice and a material droplet of a second size to be ejected through the second orifice.

公开(公告)号：US20210178763A1

公开(公告)日：2021-06-17

申请号：US16712618

申请日：2019-12-12

Applicant: XEROX CORPORATION

Inventor： Christopher T. Chungbin ,  Scott J. Vader ,  Zachary S. Vader ,  Kareem N. Tawil ,  William R. Harris ,  David A. Mantell ,  Viktor Sukhotskiy

IPC: B41J2/14 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B22D23/00 ,  B28B1/00 ,  B29C64/112 ,  B29C64/209

Abstract: A jetting assembly that can be used to print a high-temperature print material such as a metal or metal alloy, an aqueous ink, or another material, includes an actuator for heating a gas such as a non-volatile gas within a gas cavity. The actuator rapidly heats the gas within the gas cavity, which rapidly increases a volume of the gas, thereby applying a pressure to the print material within an expansion channel that is in fluid communication with the gas cavity. In turn, the print material within the expansion channel applies a pressure to the print material within a nozzle bore, which forces a drop of the print material from a nozzle. The jetting assembly further includes a supply inlet that supplies the print material to the expansion chamber and the nozzle bore, for example, from a reservoir.

公开(公告)号：US20210121947A1

公开(公告)日：2021-04-29

申请号：US16666212

申请日：2019-10-28

Applicant: XEROX CORPORATION ,  Palo Alto Research Center Incorporated

Inventor： David A. Mantell ,  Daniel R. Cormier ,  Christopher T. Chungbin ,  Zachary S. Vader ,  Viktor Sukhotskiy ,  Scott J. Vader ,  David Tilley

IPC: B22D23/00 ,  B33Y10/00

Abstract: A method for printing a structure, the structure including a plurality of pillars. The method for printing can include ejecting only a first drop of a print material such as a liquid metal sequentially at each of a plurality of pillar locations, then ejecting only a second drop of the print material sequentially onto the first drop at each of the plurality of print locations. Additional drops can be ejected at two or more of the pillar locations to form the plurality of pillars. Ejecting only a first drop at each pillar location allows the first drop to cure (i.e., cool or dry) before ejecting the second drop. The printer continues printing while the drops cure, thus improving processing efficiency and increasing production throughput.