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：US11607724B2

公开(公告)日：2023-03-21

申请号：US16991159

申请日：2020-08-12

Applicant: XEROX CORPORATION

Inventor： Viktor Sukhotskiy ,  David A. Mantell ,  Palghat S. Ramesh ,  Kareem Tawil ,  Alexander J. Fioravanti ,  Dinesh Krishna Kumar Jayabal

IPC: B22D23/00 ,  B33Y50/02 ,  B33Y30/00 ,  B33Y10/00

Abstract: A three-dimensional (3D) printer includes an ejector and a heating element configured to heat a solid printing material in the ejector, thereby causing the solid printing material to change to a liquid printing material within the ejector. The 3D printer also includes a coil wrapped at least partially around the ejector. The 3D printer also includes a power source configured to supply one or more pulses of power to the coil, which cause one or more drops of the liquid printing material to flow out of the ejector through a nozzle of the ejector. The 3D printer also includes a gas-controlling device configured to control a gas in the 3D printer.

公开(公告)号：US20220347920A1

公开(公告)日：2022-11-03

申请号：US17244185

申请日：2021-04-29

Applicant: Xerox Corporation

Inventor： David A. Mantell ,  Paul J. McConville ,  Dinesh Krishna Kumar Jayabal ,  Viktor Sukhotskiy

IPC: B29C64/268 ,  B29C64/135 ,  B29C64/245 ,  B29C64/393 ,  B29C64/371 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y50/02

Abstract: A three-dimensional (3D) object printer operates a radiation source to direct radiation emitted by the radiation source through a porous substrate at a first intensity insufficient to cure a material contained in the porous substrate and at a second intensity sufficient to cure the material after the emitted radiation has passed through the porous substrate. The material is applied to the porous substrate by one or more wipers.

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：US20220032550A1

公开(公告)日：2022-02-03

申请号：US16945509

申请日：2020-07-31

Applicant: Xerox Corporation

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

IPC: B29C64/393 ,  B29C64/112 ,  B29C64/209 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00

Abstract: 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 apparatus 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 apparatus 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.