公开(公告)号：US20190022937A1

公开(公告)日：2019-01-24

申请号：US16066944

申请日：2016-12-29

Applicant: Evolve Additive Solutions, Inc.

Inventor： Eric Carl Stelter ,  Steven A. Chillscyzn ,  Jerome Geotzke

IPC: B29C64/218 ,  B29C64/393 ,  B29C64/245

Abstract: An additive manufacturing system for printing a three-dimensional part includes a build roller that rotates while receiving part material such that layers of part material are formed on a cylindrical base of the build roller in a cylindrical scroll to form the three-dimensional part, wherein the part material of adjacent layers of part material are bonded together on the build roller, and wherein the three-dimensional part can be non-cylindrical.

公开(公告)号：US20250074007A1

公开(公告)日：2025-03-06

申请号：US18725331

申请日：2022-12-29

Applicant: Evolve Additive Solutions, Inc.

Inventor： Jerry Pickering ,  Brian Mullen

IPC: B29C64/40 ,  B33Y10/00 ,  B33Y70/00

Abstract: The present disclosure is directed, in part, to method for selective thermoplastic electrophotographic process additive manufacturing, the method comprising applying a high-absorbance support material and a low-absorbance part material adjacent to one another: applying radiated energy to the high-absorbance support material and low-absorbance part material such that the high-absorbance support material selectively absorbs the radiated energy and transfers heat to the low-absorbance part material.

公开(公告)号：US20220355547A1

公开(公告)日：2022-11-10

申请号：US17622553

申请日：2020-06-30

Applicant: Evolve Additive Solutions, Inc.

Inventor： J. Samuel Batchelder

IPC: B29C64/268 ,  B29C64/153 ,  B29C64/245 ,  B29C64/218

Abstract: Disclosed are selective layer deposition based additive manufacturing systems and methods for printing a 3D part. Layers of a powder material are developed using one or more electrostatography-based engines. The layers are transferred for deposition on a part build surface. One or more lasers are used to heat a region of the part build surface and a developed layer near the nip roller entrance. The developed layer is then pressed into the part build surface.

公开(公告)号：US20200338825A1

公开(公告)日：2020-10-29

申请号：US16958907

申请日：2017-12-28

Applicant: Evolve Additive Solutions, Inc.

Inventor： James W. Comb ,  Chris Counts

IPC: B29C64/218 ,  B33Y30/00 ,  G03G15/22 ,  B29C64/295

Abstract: A selective-deposition-based additive manufacturing system (10) includes a transfer medium (24) configured to receive the layers (22) from an imaging engine (12), a heater (72) configured to heat the layers (22) on the transfer medium (24), and a layer transfusion assembly (20) that includes a build platform (28), and is configured to transfuse the heated layers (22) onto the build platform (28) in a layer-by-layer manner to print a three-dimensional part (22). The transfusion assembly (20) includes a nip roller (320) configured to deform when transfusing the heated imaged layers (22) to reduce deformation of the layers (22).

公开(公告)号：US20200338813A1

公开(公告)日：2020-10-29

申请号：US16958904

申请日：2017-12-29

Applicant: Evolve Additive Solutions, Inc.

Inventor： Chris Counts ,  J. Samuel Batchelder

IPC: B29C64/147 ,  B33Y10/00 ,  G03G15/22

Abstract: Disclosed are selective deposition based additive manufacturing systems (10) and methods for printing a 3D part. Layers of a powder material (22) are developed using one or more electrostatography-based engines (12). The layers (22) are transferred for deposition on a part build surface. For each of the layers (22), the part build surface is heated to a temperature within a range between a flowable temperature and a thermal oxidation threshold to form a flowable part build surface, and the developed layer (22) is pressed into contact with the flowable build surface (88) to heat the developed layers (22) to a flowable state and form a new part build surface (88) which is fully consolidated. The new part build surface (88) is then cooled to remove the heat energy added during heating step before repeating the steps for the next developed layer.

公开(公告)号：US20190202125A1

公开(公告)日：2019-07-04

申请号：US16232564

申请日：2018-12-26

Applicant: Evolve Additive Solutions, Inc.

Inventor： J. Samuel Batchelder

IPC: B29C64/295 ,  B29C64/147 ,  B33Y10/00 ,  B29C64/188 ,  G03G15/22

CPC classification number: B29C64/295 ,  B29C64/147 ,  B29C64/188 ,  B33Y10/00 ,  G03G15/224

Abstract: A method for printing a 3D part with a selective deposition based additive manufacturing system, includes developing layers of a powder material using at least one electrostatographic engine. The developed layers are transferred from the at least one electrostatographic engine to a transfer medium wherein the developed layers are pre-heated to a first temperature. The method includes preheating the at least a portion of the 3D part on the build platform to a second temperature higher than the first temperature. The developed layers on the transfer medium are then pressed into contact with build surfaces of a 3D part on a build platform such that heat is transferred from the build surface of the 3D part to the developed layers and the developed layers are transfused from the transfer medium to the 3D part being printed, wherein the 3D part is formed in a layer-by-layer manner.

公开(公告)号：US20190022926A1

公开(公告)日：2019-01-24

申请号：US16144555

申请日：2018-09-27

Applicant: Evolve Additive Solutions, Inc.

Inventor： Michael Frauens

IPC: B29C64/141 ,  G03G15/22 ,  B29C64/188

Abstract: An additive manufacturing method produces a 3D part utilizes electrophotography-based additive manufacturing and molding processes. A layered structure having a cavity is printed on a build platform using at least one electrophotographic (EP) engine to develop imaged layers of powder material, and a transfusion assembly to stack and fuse the imaged layers on the build platform. Molding material is deposited into the cavity as the layered structure is printed, using a deposition unit. The molding material solidifies to form at least a portion of the 3D part, which may also include portions formed from imaged powder material.

公开(公告)号：US10105902B2

公开(公告)日：2018-10-23

申请号：US15490491

申请日：2017-04-18

Applicant: Evolve Additive Solutions, Inc.

Inventor： Michael Frauens

IPC: B29C67/00 ,  B33Y10/00 ,  B33Y30/00 ,  G03G15/00 ,  B29C64/141 ,  B29C70/74 ,  G03G15/22 ,  B29C64/188 ,  B29C64/264 ,  B29C64/118 ,  B29C64/147 ,  B29C64/153 ,  B29C64/20 ,  B29C64/268 ,  B29C64/106

Abstract: An additive manufacturing method produces a 3D part utilizes electrophotography-based additive manufacturing and molding processes. A layered structure having a cavity is printed on a build platform using at least one electrophotographic (EP) engine to develop imaged layers of powder material, and a transfusion assembly to stack and fuse the imaged layers on the build platform. Molding material is deposited into the cavity as the layered structure is printed, using a deposition unit. The molding material solidifies to form at least a portion of the 3D part, which may also include portions formed from imaged powder material.

公开(公告)号：US11975492B2

公开(公告)日：2024-05-07

申请号：US16562624

申请日：2019-09-06

Applicant: Evolve Additive Solutions, Inc.

Inventor： Andrew Rice

IPC: B29C64/218 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/147

CPC classification number: B29C64/393 ,  B29C64/218 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/147

Abstract: A method of additive manufacturing utilizing selective layer deposition includes measuring a transfuse force between a transfuse roller and a part build surface. An angular position of the transfuse roller is measured over time. A component of a transfuse force variation that is periodic in a rotational period of the transfuse roller is estimated, and a vertical position between the transfuse roller and the part build surface is adjusted to reduce pressure variations in transfuse roller force on the build part surface.

公开(公告)号：US11845221B2

公开(公告)日：2023-12-19

申请号：US16966317

申请日：2019-02-01

Applicant: Evolve Additive Solutions, Inc.

Inventor： J. Samuel Batchelder

IPC: B29C64/223 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/153 ,  B29C64/245 ,  B29C64/295 ,  B29C64/393

CPC classification number: B29C64/223 ,  B29C64/153 ,  B29C64/245 ,  B29C64/295 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: Disclosed are selective deposition-based additive manufacturing systems (10) and methods for printing a 3D part (26). Layers of a powder material (22) are developed using one or more electrostatographic engines (12a-d). The layers (22) are transferred for deposition on a part build surface (88). For each of the layers (22), the part build surface (88) is pre-heated by impinging a first heat transfer liquid (74) toward the part build surface (88), for example using a solder fountain. The developed layer (22) is pressed into contact with the heated part build surface (88) to heat the developed layer (22) to a flowable state and form a new part build surface (88) which is fully consolidated. The new part build surface (88) is then rapidly cooled to remove the heat energy added during heating step before repeating the steps for the next developed layer (22).