公开(公告)号：US20220234110A1

公开(公告)日：2022-07-28

申请号：US17157448

申请日：2021-01-25

Applicant: Xerox Corporation ,  Palo Alto Research Center Incorporated

Inventor： Stuart A. Schweid ,  David A. Mantell ,  Christopher T. Chungbin ,  David G. Tilley ,  Walter Hsiao ,  PriyaankaDevi Guggilapu ,  Daniel Cormier ,  Dinesh Krishna Kumar Jayabal

IPC: B22F10/85 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22D23/00 ,  B22F10/22

Abstract: A slicer in a material drop ejecting three-dimensional (3D) object printer determines the number of material drops to eject to form a perimeter in an object layer and distributes a quantization error over the layers forming the perimeter. The slicer also identifies the location for the first material drop ejected to form the perimeter using a blue noise generator.

公开(公告)号：US11794255B2

公开(公告)日：2023-10-24

申请号：US17159975

申请日：2021-01-27

Applicant: Xerox Corporation ,  Palo Alto Research Center Incorporated

Inventor： David A Mantell ,  Christopher T. Chungbin ,  Daniel Cormier ,  David G. Tilley ,  Walter Hsiao ,  PriyaankaDevi Guggilapu ,  Michael F. Dapiran ,  Dinesh Krishna Kumar Jayabal

IPC: B22F10/85 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/22 ,  B22F12/53

CPC classification number: B22F10/85 ,  B22F10/22 ,  B22F12/53 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A three-dimensional (3D) metal object manufacturing apparatus is operated to form sloping surfaces having a slope angle of more than 45° from a line that is perpendicular to the structure on which the layer forming the slope surface is formed. The angle corresponds to a step-out distance from the perpendicular line and a maximum individual step-out distance determined from empirically derived data. Multiple passes of an ejection head of the apparatus can be performed within a layer to form a sloped edge and the mass of the sloped structure is distributed within the sloped edge so the edge is formed without defects.

公开(公告)号：US20230294364A1

公开(公告)日：2023-09-21

申请号：US18321509

申请日：2023-05-22

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Christopher T. Chungbin ,  Daniel R. Cormier ,  Denis Cormier ,  Manoj Meda ,  Dinesh Krishna Kumar Jayabal

IPC: B29C64/393 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00 ,  B29C64/112 ,  B29C64/209 ,  B22F12/53 ,  B22F10/85 ,  B22F10/22

CPC classification number: B29C64/393 ,  B22F10/22 ,  B22F10/85 ,  B22F12/53 ,  B29C64/112 ,  B29C64/209 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00

Abstract: A method of operating a three-dimensional (3D) metal object manufacturing apparatus selects operational parameters for operation of the printer to form conductive metal traces on substrates with dimensions within appropriate tolerances and with sufficient conductive material to carry electrical currents without burning up or becoming too hot. The method identifies the material of the substrate and the bulk metal being melted for ejection and uses this identification data to select the operational parameters. Thus, the method can form conductive traces and circuits on a wide range of substrate materials including polymeric substrates, semiconductor materials, oxide layers on semiconductor materials, glass, and other crystalline materials.

公开(公告)号：US20220242048A1

公开(公告)日：2022-08-04

申请号：US17163355

申请日：2021-01-30

Applicant: Xerox Corporation

Inventor： Rachel L. Tanchak ,  Erwin Ruiz ,  Brendan McNamara ,  Piotr Sokolowski ,  Jack G. Elliot ,  Ka H. Fung ,  Derek A. Bryl ,  Douglas E. Proctor ,  Christopher T. Chungbin ,  Peter M. Gulvin

IPC: B29C64/393 ,  B29C64/112 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A material drop ejecting three-dimensional (3D) object printer identifies a time lag error corresponding to a time lag in the response of printer components to component commands. The identified time lag error is provided to a slicer program that uses the identified time lag error to compensate for the time lag in the response of the printer components.

公开(公告)号：US20220234111A1

公开(公告)日：2022-07-28

申请号：US17159975

申请日：2021-01-27

Applicant: Xerox Corporation ,  Palo Alto Research Center Incorporated

Inventor： David A. Mantell ,  Christopher T. Chungbin ,  Daniel Cormier ,  David G. Tilley ,  Walter Hsiao ,  PriyaankaDevi Guggilapu ,  Michael F. Dapiran ,  Dinesh Krishna Kumar Jayabal

IPC: B22F10/85 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B22F10/22

Abstract: A three-dimensional (3D) metal object manufacturing apparatus is operated to form sloping surfaces having a slope angle of more than 45° from a line that is perpendicular to the structure on which the layer forming the slope surface is formed. The angle corresponds to a step-out distance from the perpendicular line and a maximum individual step-out distance determined from empirically derived data. Multiple passes of an ejection head of the apparatus can be performed within a layer to form a sloped edge and the mass of the sloped structure is distributed within the sloped edge so the edge is formed without defects.

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：US11220102B2

公开(公告)日：2022-01-11

申请号：US16712725

申请日：2019-12-12

Applicant: XEROX CORPORATION

Inventor： Christopher T. Chungbin ,  Kareem N. Tawil ,  Zachary S. Vader

IPC: B41J2/14 ,  B41J2/03 ,  B41J2/16 ,  B41J2/045 ,  B41J2/175 ,  B41J2/05

Abstract: A jetting assembly for ejecting a print material includes an actuator for applying a pressure to the print material, and further includes jetting assembly block that defines a pump chamber, a converging part (i.e., a narrowing taper), and a nozzle bore that ends or terminates in a nozzle from which a drop of the print material is ejected. An implementation can further include a throat and a diverging part that, together with the converging part, forms a venturi. The converging part results in an increase in a velocity of the print material and a decrease in pressure as the print material passes an supply port of a supply channel. The decrease in pressure can result in a replacement of at least a portion of the drop volume within the throat or the nozzle bore even before the drop is ejected from the nozzle.

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：US11890674B2

公开(公告)日：2024-02-06

申请号：US17652988

申请日：2022-03-01

Applicant: Xerox Corporation ,  Palo Alto Research Center Incorporated

Inventor： Christopher T. Chungbin ,  PriyaankaDevi Guggilapu ,  Daniel R. Cormier ,  David G. Tilley ,  David A. Mantell ,  Michael F. Dapiran

IPC: B33Y30/00 ,  B33Y50/02 ,  B22F10/85 ,  B22D23/00 ,  B22F10/22 ,  B33Y10/00 ,  B22F12/50

CPC classification number: B22F10/22 ,  B22D23/003 ,  B22F10/85 ,  B22F12/50 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: A metal object manufacturing apparatus is configured to eject melted metal drops to form a continuous metal line over a line of spatially separated pillars in a single pass. The ejection frequency for forming the continuous metal line is different than the frequency used to form the pillars. In one embodiment, the ejection frequency for forming the pillars is about 100 Hz and the frequency used to form the continuous metal line over the line of spatially separated pillars is about 300 Hz with a drop spacing of about 0.2 mm. Continuous metal lines are formed to extend the continuous metal lines over the pillars laterally to fill the gaps between the continuous metal lines over the pillars. These continuous metal lines that fill the gaps are formed while operating the ejection head at the 300 Hz frequency with a drop spacing of 0.28 mm.

公开(公告)号：US20230241841A1

公开(公告)日：2023-08-03

申请号：US18299636

申请日：2023-04-12

Applicant: Xerox Corporation ,  Palo Alto Research Center Incorporated

Inventor： Stuart A. Schweid ,  David A. Mantell ,  PriyaankaDevi Guggilapu ,  David G. Tilley ,  Christopher T. Chungbin ,  Walter Hsiao ,  Dinesh Krishna Kumar Jayabal ,  Daniel Cormier

IPC: B29C64/393 ,  B33Y30/00 ,  G06F18/20 ,  G06F18/2411

CPC classification number: B29C64/393 ,  B33Y30/00 ,  G06F18/295 ,  G06F18/2411 ,  G06N3/004

Abstract: A slicer in a material drop ejecting three-dimensional (3D) object printer identifies the positions and local densities for a plurality of infill lines within a perimeter to be formed within a layer of an object to be formed by the printer. The local density of each infill line is filtered and a control law is applied to the filtered local density to identify an error in the local density compared to a target density. This process is performed iteratively until the error is within a predetermined tolerance range about the target local density. The error is used to generate machine ready instructions to operate the 3D object printer to achieve the target density for the infill lines.