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：US20220227040A1

公开(公告)日：2022-07-21

申请号：US17615366

申请日：2020-05-29

Applicant: Evolve Additive Solutions, Inc.

Inventor： J. Samuel Batchelder ,  Eric Carl Stelter

IPC: B29C64/147 ,  B29C64/295 ,  B29C64/218 ,  B29C64/321

Abstract: A selective deposition-based additive manufacturing system capable of building a three-dimensional (3D) part utilizing a semi-crystalline polymeric material includes at least one electrostatographic engine configured to develop one or more layers of particles of semi-crystalline polymeric material corresponding to one or more slices of a 3D model of a 3D part. The system includes a transfer medium configured to receive the one or more layers of particles of the semi-crystalline polymeric material on a front side from the at least one electrostatographic engine and to move the one or more layers away from the electrostatographic engine and a platen configured to carry the 3D part or support being printed. The system includes a gantry coupled to the platen and configured to move the platen into registration with the one or more layers, and a heater configured to heat a top surface of the 3D part being printed to a transfuse temperature. The system includes a layer transfer assembly having a roller contacting a back side of the transfer medium and a driver configured to cause the layer to transfer from the front side of the transfer medium to the heated top surface of the part. The system includes a cooler configured to cool the heated semi-crystalline polymeric material at a maximum rate of at least 20° C. per second such that the semi-crystalline material is in a super-cooled state wherein the semi-crystalline polymeric material does not completely initially crystallize.

公开(公告)号：US11993006B2

公开(公告)日：2024-05-28

申请号：US17615366

申请日：2020-05-29

Applicant: Evolve Additive Solutions, Inc.

Inventor： J. Samuel Batchelder ,  Eric Carl Stelter

IPC: B33Y10/00 ,  B29C64/147 ,  B29C64/218 ,  B29C64/295 ,  B29C64/321 ,  B33Y30/00 ,  B33Y40/20 ,  B33Y70/00

CPC classification number: B29C64/147 ,  B29C64/218 ,  B29C64/295 ,  B29C64/321 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/20 ,  B33Y70/00

Abstract: A selective deposition-based additive manufacturing system capable of building a three-dimensional (3D) part utilizing a semi-crystalline polymeric material includes at least one electrostatographic engine configured to develop one or more layers of particles of semi-crystalline polymeric material corresponding to one or more slices of a 3D model of a 3D part. The system includes a transfer medium configured to receive the one or more layers of particles of the semi-crystalline polymeric material on a front side from the at least one electrostatographic engine and to move the one or more layers away from the electrostatographic engine and a platen configured to carry the 3D part or support being printed. The system includes a gantry coupled to the platen and configured to move the platen into registration with the one or more layers, and a heater configured to heat a top surface of the 3D part being printed to a transfuse temperature. The system includes a layer transfer assembly having a roller contacting a back side of the transfer medium and a driver configured to cause the layer to transfer from the front side of the transfer medium to the heated top surface of the part. The system includes a cooler configured to cool the heated semi-crystalline polymeric material at a maximum rate of at least 20° C. per second such that the semi-crystalline material is in a super-cooled state wherein the semi-crystalline polymeric material does not completely initially crystallize.