公开(公告)号：US11173654B2

公开(公告)日：2021-11-16

申请号：US16380208

申请日：2019-04-10

Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION

Inventor： Eric G. Barnes ,  Pedro A. Gonzalez ,  Todd L. Szallay ,  Steven J. Floyd ,  Sung S. Park ,  Brett G. Morham ,  Cody J. Brown ,  Reese R. Allen ,  Ryan L. Bischoff

IPC: B29C64/118 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B29C64/20

Abstract: A method for fabricating a composite part using a 3D printing machine. The method includes forming the part by depositing an alternating sequence of first part layers including rows of filaments made of a first part material and depositing second part layers including rows of filaments made of a second part material, where the second part material is different than the first part material and provides adhesion between the first part layers.

公开(公告)号：US20200324473A1

公开(公告)日：2020-10-15

申请号：US16380390

申请日：2019-04-10

Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION

Inventor： Eric G. Barnes ,  Pedro A. Gonzalez ,  Todd L. Szallay ,  Steven J. Floyd ,  Sung S. Park ,  Brett G. Morham ,  Cody J. Brown ,  Reese R. Allen ,  Ryan L. Bischoff

IPC: B29C64/209 ,  B29C64/118

Abstract: A printing machine for fabricating high performance 3D integrated composite structures, where the machine includes a robot having a base portion, a robot arm and an end joint secured to the arm opposite to the base portion, a plurality of sources of extrudable material, and an end-effector mounted to the end joint. The end-effector includes a multiple-extruder module having a first extruder and a second extruder each including a separate nozzle assembly, wherein the first extruder receives one extrudable material and the second extruder receives another extrudable material.

公开(公告)号：US20200324460A1

公开(公告)日：2020-10-15

申请号：US16380208

申请日：2019-04-10

Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION

Inventor： Eric G. Barnes ,  Pedro A. Gonzalez ,  Todd L. Szallay ,  Steven J. Floyd ,  Sung S. Park ,  Brett G. Morham ,  Cody J. Brown ,  Reese R. Allen ,  Ryan L. Bischoff

IPC: B29C64/118 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00 ,  B29C64/20

Abstract: A method for fabricating a composite part using a 3D printing machine. The method includes forming the part by depositing an alternating sequence of first part layers including rows of filaments made of a first part material and depositing second part layers including rows of filaments made of a second part material, where the second part material is different than the first part material and provides adhesion between the first part layers.

公开(公告)号：US20200324458A1

公开(公告)日：2020-10-15

申请号：US16380066

申请日：2019-04-10

Applicant: NORTHROP GRUMMAN SYSTEMS CORPORATION

Inventor： Eric G. Barnes ,  Pedro A. Gonzalez ,  Todd L. Szallay ,  Steven J. Floyd ,  Sung S. Park ,  Brett G. Morham ,  Cody J. Brown ,  Reese R. Allen ,  Ryan L. Bischoff

IPC: B29C64/118 ,  B29C64/209 ,  B29C64/245 ,  B29C64/379

Abstract: A method for fabricating a composite part using a 3D printing machine. The method includes forming the part by depositing consecutive part layers each including rows of filaments made of a part material from the machine, where depositing each part layer includes non-sequentially depositing one set of a plurality of filaments so that a gap is formed between the filaments and then depositing any number of additional sets of filaments so that each adjacent pair of filaments in each additional set of filaments are non-sequentially deposited.