公开(公告)号：US20210078076A1

公开(公告)日：2021-03-18

申请号：US16611897

申请日：2018-05-10

Applicant: Monash University

Inventor： Marten Jurg ,  Andrey Molotnikov

IPC: B22F3/105 ,  B33Y10/00

Abstract: An additive manufacturing system and method is provided for fabricating 3D objects (16) from successive layers (14) of material. The additive manufacturing system (10) has an energy projection assembly (20) for inputting energy (22) into a specified area within the layer (18) to consolidate the material; a plurality of image sensors (30, 32, 34), each of the image sensors having a corresponding field of view (35, 40, 42) covering at least part of the layer (18) of material, such that each of the fields of view at least partially overlap with the field of view of at least one other of the image sensors; and an image processor (56) to capture image data from each of the image sensors (30, 32, 34). The image processor (56) controls exposure times for each of the image sensors (30, 32, 34) and combines the image data from the image sensors to provide a single, spatially resolved image of the energy being input throughout the specified area for each layer (14) of material respectively for comparison against threshold data values to locate potential consolidation defects in the specified area.

公开(公告)号：US20230202120A1

公开(公告)日：2023-06-29

申请号：US18111929

申请日：2023-02-21

Applicant: Monash University

Inventor： Marten Jurg ,  Andrey Molotnikov

IPC: B29C64/393 ,  B33Y10/00 ,  B22F10/00 ,  B22F10/28 ,  B22F12/90 ,  B22F10/364 ,  B22F10/366 ,  B22F10/38 ,  B22F10/85

CPC classification number: B29C64/393 ,  B22F10/00 ,  B22F10/28 ,  B22F10/38 ,  B22F10/85 ,  B22F10/364 ,  B22F10/366 ,  B22F12/90 ,  B33Y10/00 ,  B33Y30/00

Abstract: An additive manufacturing system and method is provided for fabricating 3D objects (16) from successive layers (14) of material. The additive manufacturing system (10) has an energy projection assembly (20) for inputting energy (22) into a specified area within the layer (18) to consolidate the material; a plurality of image sensors (30, 32, 34), each of the image sensors having a corresponding field of view (35, 40, 42) covering at least part of the layer (18) of material, such that each of the fields of view at least partially overlap with the field of view of at least one other of the image sensors; and an image processor (56) to capture image data from each of the image sensors (30, 32, 34). The image processor (56) controls exposure times for each of the image sensors (30, 32, 34) and combines the image data from the image sensors to provide a single, spatially resolved image of the energy being input throughout the specified area for each layer (14) of material respectively for comparison against threshold data values to locate potential consolidation defects in the specified area.

公开(公告)号：US11602790B2

公开(公告)日：2023-03-14

申请号：US16611897

申请日：2018-05-10

Applicant: Monash University

Inventor： Marten Jurg ,  Andrey Molotnikov

IPC: B22F10/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  B29C64/153 ,  B29C64/245 ,  B29C64/393 ,  B22F10/10

Abstract: An additive manufacturing system and method is provided for fabricating 3D objects (16) from successive layers (14) of material. The additive manufacturing system (10) has an energy projection assembly (20) for inputting energy (22) into a specified area within the layer (18) to consolidate the material; a plurality of image sensors (30, 32, 34), each of the image sensors having a corresponding field of view (35, 40, 42) covering at least part of the layer (18) of material, such that each of the fields of view at least partially overlap with the field of view of at least one other of the image sensors; and an image processor (56) to capture image data from each of the image sensors (30, 32, 34). The image processor (56) controls exposure times for each of the image sensors (30, 32, 34) and combines the image data from the image sensors to provide a single, spatially resolved image of the energy being input throughout the specified area for each layer (14) of material respectively for comparison against threshold data values to locate potential consolidation defects in the specified area.