公开(公告)号：US12023871B2

公开(公告)日：2024-07-02

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 ,  B22F10/85 ,  B22F12/53 ,  G06N3/004 ,  G06N20/00

CPC classification number: B29C64/393 ,  B33Y30/00 ,  G06F18/2411 ,  G06F18/295 ,  B22F12/53 ,  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.

公开(公告)号：US11883881B2

公开(公告)日：2024-01-30

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: B33Y50/02 ,  B22F10/85 ,  B33Y10/00 ,  B33Y30/00 ,  B22F12/53 ,  B22F10/22 ,  B22D23/00

CPC classification number: B22F10/85 ,  B22D23/003 ,  B22F10/22 ,  B22F12/53 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

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：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：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：US20230249247A1

公开(公告)日：2023-08-10

申请号：US18301100

申请日：2023-04-14

Applicant: XEROX CORPORATION

Inventor： Denis Cormier ,  Dinesh Krishna Kumar Jayabal ,  Daniel Cormier ,  Santokh S. Badesha ,  Varun Sambhy

IPC: B22D23/00 ,  B33Y10/00 ,  B33Y30/00 ,  B22F10/22 ,  B22F12/53

CPC classification number: B22D23/003 ,  B33Y10/00 ,  B33Y30/00 ,  B22F10/22 ,  B22F12/53

Abstract: A three-dimensional (3D) printer includes an ejector and a coil wrapped partially around the ejector. The 3D printer also includes a power source configured to transmit voltage pulses to the coil. The 3D printer causes one or more drops of the liquid to be jetted out of the nozzle, and a substrate configured to support the one or more drops and advance along a path defined by one or more arcuate contours, where the one or more arcuate contours define a first layer of a strut. One or more struts are printed from the first layer of the strut to a node of each strut. The one or more struts are printed from a first layer to a node and combine to fabricate a lattice structure including one or more vertical struts and/or one or more angled struts wherein each strut intersects with another strut at a node.

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.

公开(公告)号：US20220234298A1

公开(公告)日：2022-07-28

申请号：US17157568

申请日：2021-01-25

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 ,  B29C64/112 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

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.

公开(公告)号：US11660822B2

公开(公告)日：2023-05-30

申请号：US17157568

申请日：2021-01-25

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 ,  B22F10/22 ,  B29C64/112 ,  G06N3/004 ,  B22F12/53

CPC classification number: B29C64/393 ,  B33Y30/00 ,  G06F18/2411 ,  G06F18/295 ,  B22F12/53 ,  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.

公开(公告)号：US20220212249A1

公开(公告)日：2022-07-07

申请号：US17143007

申请日：2021-01-06

Applicant: XEROX CORPORATION

Inventor： Denis Cormier ,  Dinesh Krishna Kumar Jayabal ,  Daniel Cormier ,  Santokh S. Badesha ,  Varun Sambhy

IPC: B22D23/00 ,  B33Y30/00 ,  B33Y10/00

Abstract: A three-dimensional (3D) printer includes an ejector and a coil wrapped at least partially around the ejector. The 3D printer also includes a power source configured to transmit voltage pulses to the coil. The 3D printer includes a computing system causing one or more drops of the liquid to be jetted out of the nozzle, and a substrate configured to support the one or more drops and advance along a path defined by one or more arcuate contours, where the one or more arcuate contours define a first layer of a strut. One or more struts are printed from the first layer of the strut to a node of each strut. The one or more struts are printed from a first layer to a node and combine to fabricate a lattice structure including one or more vertical struts and/or one or more angled struts wherein each strut intersects with another strut at a node.