公开(公告)号：US20240208133A1

公开(公告)日：2024-06-27

申请号：US18591747

申请日：2024-02-29

Applicant: Northrop Grumman Systems Corporation

Inventor： Benjamin W. Garcia ,  Jacob M. Ketcham ,  Jared S. Noorda ,  Carl B. Madsen ,  David R. Machac

IPC: B29C53/82 ,  B29C53/60 ,  B29C64/118 ,  B29C70/86 ,  B29K705/02 ,  B29L31/00 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00

CPC classification number: B29C53/824 ,  B29C53/602 ,  B29C64/118 ,  B29C70/86 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  B29K2705/02 ,  B29K2879/085 ,  B29L2031/757

Abstract: A tool for forming a composite structure may include two or more segments formed from a polymer material. The tool may further include a crush insert disposed between the two or more segments. The tool may also include a support shaft coupled between the two or more segments. A method of forming a mandrel may include forming segments of the mandrel through an additive manufacturing process. The method may further include assembling the segments relative to one another. The method may also include positioning a crush insert between each of the segments. A method of fabricating a composite structure is also disclosed.

公开(公告)号：US20230191651A1

公开(公告)日：2023-06-22

申请号：US17553581

申请日：2021-12-16

Applicant: Northrop Grumman Systems Corporation

Inventor： Benjamin W. Garcia ,  Eric G. Barnes

IPC: B28B1/00 ,  B33Y10/00 ,  B33Y40/20 ,  B33Y30/00 ,  B29C64/118 ,  B29C64/30 ,  B28B11/04 ,  B28B11/24

CPC classification number: B28B1/001 ,  B28B11/04 ,  B28B11/243 ,  B29C64/30 ,  B29C64/118 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y40/20 ,  B29K2101/10

Abstract: A method of forming a structure comprising a continuous fiber material comprises continuously feeding, through a continuous fiber nozzle assembly of an additive manufacturing tool, a feed material comprising a continuous fiber material and a thermoset resin material, heating or cooling the feed material to maintain a temperature of the feed material to a temperature sufficient to tackify the feed material and at least partially cure the feed material and initiate adhesion of the feed material on a build platform or a previously formed portion of a structure, and moving the continuous fiber nozzle assembly in three dimensions while depositing the feed material on the build platform or the previously formed portion of the structure to form the structure comprising the continuous fiber material extending in three dimensions. Related methods of forming a composite structure, and related tools for additively manufacturing a structure are disclosed.

公开(公告)号：US11919223B2

公开(公告)日：2024-03-05

申请号：US17710255

申请日：2022-03-31

Applicant: Northrop Grumman Systems Corporation

Inventor： Benjamin W. Garcia ,  Jacob M. Ketcham ,  Jared S. Noorda ,  Carl B. Madsen ,  David R. Machac

IPC: B29C53/82 ,  B29C53/60 ,  B29C64/118 ,  B29C70/86 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  B29K705/02 ,  B29L31/00

CPC classification number: B29C53/824 ,  B29C53/602 ,  B29C64/118 ,  B29C70/86 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  B29K2705/02 ,  B29K2879/085 ,  B29L2031/757

Abstract: A tool for forming a composite structure may include two or more segments formed from a polymer material. The tool may further include a crush insert disposed between the two or more segments. The tool may also include a support shaft coupled between the two or more segments. A method of forming a mandrel may include forming segments of the mandrel through an additive manufacturing process. The method may further include assembling the segments relative to one another. The method may also include positioning a crush insert between each of the segments. A method of fabricating a composite structure is also disclosed.

公开(公告)号：US20220314528A1

公开(公告)日：2022-10-06

申请号：US17710255

申请日：2022-03-31

Applicant: Northrop Grumman Systems Corporation

Inventor： Benjamin W. Garcia ,  Jacob M. Ketcham ,  Jared S. Noorda ,  Carl B. Madsen ,  David R. Machac

IPC: B29C53/82 ,  B29C53/60 ,  B29C64/118 ,  B29C70/86 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00

Abstract: A tool for forming a composite structure may include two or more segments formed from a polymer material. The tool may further include a crush insert disposed between the two or more segments. The tool may also include a support shaft coupled between the two or more segments. A method of forming a mandrel may include forming segments of the mandrel through an additive manufacturing process. The method may further include assembling the segments relative to one another. The method may also include positioning a crush insert between each of the segments. A method of fabricating a composite structure is also disclosed.