Additive manufacturing of multi-component parts for customizable energetic systems

Patent metadata

Field	Value
Publication number	US-11027482-B2
Application number	US-201615019524-A
Country	US
Kind code	B2
Filing date	Feb 9, 2016
Priority date	Feb 9, 2016
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

Abstract

An apparatus, system, and method utilizes at least two separate components during the process of producing the final product. At least one component during the process is produced using additive manufacturing, and additional components are components that are combined with the additively manufactured part. The apparatus, system, and method includes at least one energetic component and at least one second inert component. An additive manufacturing system produces a scaffold of said first energetic component(s). A system adds the second component(s) to the scaffold to produce the energetic material product.

First claim

The invention claimed is:

1. A method of producing an energetic system, comprising the steps of:
providing a support material comprising fuel constituents;
providing thermite explosive constituents;
providing an additive manufacturing system, wherein said additive manufacturing system comprises:
a print head configured to extrude a print stream of said support material,
a motion controller configured to move said print head,
a build platform, and/or
a build platform motion controller configured to move said build platform;

printing a matrix with a multiplicity of open areas with said additive manufacturing system, wherein said matrix is made from said support material comprising said fuel constituents extruded from said print head; and
filling said multiplicity of open areas with an infill material to produce said energetic system, wherein said infill material comprises said thermite explosive constituents.

Assignees

• L Livermore Nat Security Llc

Inventors

• Sullivan Kyle T
• Gash Alexander E
• Reeves Robert V
• Vericella John

Classifications

• B29C64/165

  using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber · CPC title

• B29C64/106 Primary

  using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material · CPC title

• C06B21/0075

  by extrusion · CPC title

• B29C48/16

  Articles comprising two or more components, e.g. co-extruded layers · CPC title

• B29C2948/92571

  Position, e.g. linear or angular · CPC title