公开(公告)号：US11534977B2

公开(公告)日：2022-12-27

申请号：US16750631

申请日：2020-01-23

申请人： UT-Battelle, LLC

发明人： Seokpum Kim ,  Vlastimil Kune ,  Ahmed A. Hassen ,  John M. Lindahl ,  Brian K. Post ,  Alex C. Roschli ,  Phillip C. Chesser ,  Michael C. Borish ,  Gregory D. Dreifus ,  Lonnie J. Love ,  Craig A. Blue ,  Bentley T. Beard, II

IPC分类号： G05B19/25 ,  B29C64/393 ,  B33Y50/02 ,  G05B19/4099 ,  G05B19/37 ,  G05B19/41 ,  G05B19/39 ,  G05B19/40 ,  B33Y10/00

摘要： A system and method for improving additive manufacturing, including additive manufacturing toolpaths, is provided. The system and method includes a toolpath generator that obtains initial toolpaths of an object, identifies isolated paths in the toolpaths, and adds bridge connections between neighboring isolated paths in each layer to improve the toolpaths. The bridge connections facilitate the continuous and non-stop deposition of each layer according to improved toolpaths during additive manufacture, which can reduce total deposition time and improve the resultant additive manufacture.

公开(公告)号：US20210370606A1

公开(公告)日：2021-12-02

申请号：US17333619

申请日：2021-05-28

申请人： UT Battelle, LLC

发明人： Seokpum Kim ,  John C. Bowers ,  Kenneth Stephenson ,  Vlastimil Kunc ,  Ahmed Arabi Hassen ,  Lonnie J. Love ,  Gregory D. Dreifus

IPC分类号： B29C64/386 ,  B29C64/118 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/00

摘要： Systems and methods for generating graded lattice structures that can be used as infill for additively manufactured articles. Tailored sectioning and field-based smoothing are modified polygon, e.g., circle, packing algorithms that adjust the size of the circles based on physical field data to adapt the infill generation process to a field expected to be experienced by the article. Molecular dynamically generated lattice infill is based on force balancing a node distribution instead of a circle packing. Field data can be utilized to adjust the spacing of the node distribution according to a force balance equilibrium model that accounts for the field expected to be experienced by the article being additively manufactured. The resultant non-uniform honeycomb structures from tailored sectioning, field-based smoothing, and force-balancing robustly and efficiently address the connection issues with traditional non-uniform lattice structures.

公开(公告)号：US11602898B2

公开(公告)日：2023-03-14

申请号：US17333619

申请日：2021-05-28

申请人： UT Battelle, LLC

发明人： Seokpum Kim ,  John C. Bowers ,  Kenneth Stephenson ,  Vlastimil Kunc ,  Ahmed Arabi Hassen ,  Lonnie J. Love ,  Gregory D. Dreifus

IPC分类号： B29C64/386 ,  B29C64/118 ,  B33Y50/00 ,  B33Y30/00 ,  B33Y10/00

摘要： Systems and methods for generating graded lattice structures that can be used as infill for additively manufactured articles. Tailored sectioning and field-based smoothing are modified polygon, e.g., circle, packing algorithms that adjust the size of the circles based on physical field data to adapt the infill generation process to a field expected to be experienced by the article. Molecular dynamically generated lattice infill is based on force balancing a node distribution instead of a circle packing. Field data can be utilized to adjust the spacing of the node distribution according to a force balance equilibrium model that accounts for the field expected to be experienced by the article being additively manufactured. The resultant non-uniform honeycomb structures from tailored sectioning, field-based smoothing, and force-balancing robustly and efficiently address the connection issues with traditional non-uniform lattice structures.

公开(公告)号：US20200230888A1

公开(公告)日：2020-07-23

申请号：US16750631

申请日：2020-01-23

申请人： UT-Battelle, LLC

发明人： Seokpum Kim ,  Vlastimil Kunc ,  Ahmed A. Hassen ,  John M. Lindahl ,  Brian K. Post ,  Alex C. Roschli ,  Phillip C. Chesser ,  Michael C. Borish ,  Gregory D. Dreifus ,  Lonnie J. Love ,  Craig A. Blue ,  Bentley T. Beard, II

IPC分类号： B29C64/393 ,  G05B19/4099 ,  B33Y50/02 ,  B33Y10/00

摘要： A system and method for improving additive manufacturing, including additive manufacturing toolpaths, is provided. The system and method includes a toolpath generator that obtains initial toolpaths of an object, identifies isolated paths in the toolpaths, and adds bridge connections between neighboring isolated paths in each layer to improve the toolpaths. The bridge connections facilitate the continuous and non-stop deposition of each layer according to improved toolpaths during additive manufacture, which can reduce total deposition time and improve the resultant additive manufacture.