公开(公告)号：US20180257302A1

公开(公告)日：2018-09-13

申请号：US15748174

申请日：2016-07-26

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Ruihua Eugene KHENG ,  Saeed MALEK-SAEEDI ,  Jun WEI

IPC: B29C64/386 ,  B29C64/135 ,  B29C64/205

CPC classification number: B29C64/386 ,  B29C64/135 ,  B29C64/205 ,  B33Y30/00 ,  B33Y50/02

Abstract: A multi-modal printing system for printing a 3-dimensional object and method of operating the system are provided. The system comprises multiple layers of photoresin, in a stereolithography apparatus comprising a high speed resin applicator for applying the layers of photoresin, wherein the multi-modal printing system comprises a control mechanism configured to selectively control the high speed resin applicator to perform a discreet operation, a continuous operation, and a self-reset operation.

公开(公告)号：US20200086624A1

公开(公告)日：2020-03-19

申请号：US16472860

申请日：2017-12-21

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Stephen DAYNES ,  Stefanie FEIH ,  Jun WEI

IPC: B33Y10/00 ,  G06F17/50 ,  B32B5/14 ,  B33Y50/02

Abstract: A method of manufacturing a load-bearing structure. The method may include establishing overall dimensions and expected loading conditions of the load-bearing structure; determining a material density distribution within a solid model for the load-bearing structure based on the overall dimensions and the expected loading conditions for a predetermined objective end constraint; generating stress field data for the determined material density distribution based on the expected loading conditions; transforming the solid model into a spatially-graded mesh model having a plurality of three-dimensional cells based on orthogonal isostatic lines populated along principal stress directions of the stress field data; and fabricating the load-bearing structure with truss members aligned according to the spatially-graded mesh model. A system for manufacturing a load-bearing structure and a load-bearing structure manufactured thereof.

公开(公告)号：US20180236604A1

公开(公告)日：2018-08-23

申请号：US15755536

申请日：2016-08-11

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Guijun BI ,  Jun WEI

IPC: B23K26/144 ,  B23K26/21 ,  E21B17/00

CPC classification number: B23K26/144 ,  B23K26/21 ,  B33Y10/00 ,  B33Y80/00 ,  E21B17/003

Abstract: A method of forming an elongated body with an embedded channel extending longitudinally beneath a surface along a length of the elongated body, comprising forming the elongated body with an opened channel recessed into the elongated body; the opened channel having an inner and outer portion proximal and distal to and from a channel bottom respectively of the opened channel. The method further comprises placing an elongated cover over the opened channel, and having a base and two slope surfaces extending from the base toward an apex opposite the base to cover the inner portion of the opened channel with the base, and to form two grooves each having a profile defined by a corresponding slope surface of the elongated cover and a corresponding outer portion of the opened channel forming the groove. The method further comprises filling the two grooves to join the elongated cover to the elongated body.