Warhead and method of producing same

Patent metadata

Field	Value
Publication number	US-12061073-B2
Application number	US-202017436635-A
Country	US
Kind code	B2
Filing date	Mar 9, 2020
Priority date	Mar 19, 2019
Publication date	Aug 13, 2024
Grant date	Aug 13, 2024

Abstract

A method for producing a warhead with directed blasting action involves the step of making an outer casing and arranging therein a charge with a cavity situated at the front end of the charge. An insert whose shape corresponds to the shape of the cavity is arranged on the surface of the charge. The method furthermore involves the step of depositing a material on the insert in an additive manufacturing process. A warhead manufactured according to the method includes an outer casing, a charge with a cavity situated at the front end of the charge, and an insert. A material is deposited on the insert.

First claim

The invention claimed is:

1. A method for producing a warhead with directed blasting action, comprising
making an outer casing,
arranging a charge in the outer casing with a cavity situated at a front end of the charge,
arranging an insert whose shape corresponds to the shape of the cavity on a surface of the charge,
depositing a material on an outer surface of the insert in an additive manufacturing process,

laying down the deposited material so that a thickness of the deposited material on the insert at a given cross-section of the insert perpendicular to a longitudinal axis of the insert is zero in at least one zone and non-zero in at least one other zone.

2. The method according to claim 1 , wherein the material is deposited in zones on the insert.

3. The method according to claim 1 ,
wherein several different materials are deposited on the insert.

4. The method according to claim 3 , wherein the material which is deposited is laid down in two or more overlapping layers.

5. A warhead manufactured according to a method, the method comprising making an outer casing, arranging a charge in the outer casing with a cavity situated at a front end of the charge, arranging an insert whose shape corresponds to the shape of the cavity on a surface of the charge, depositing a material on an outer surface of the insert in an additive manufacturing process, and laying down the deposited material so that a thickness of the deposited material on the insert at a given cross-section of the insert perpendicular to a longitudinal axis of the insert is zero in at least one zone and non-zero in at least one other zone, the warhead comprising the outer casing, the charge, and the insert with the deposited material.

6. The warhead according to claim 5 , wherein the deposited material is arranged in zones on the insert.

7. The warhead according to claim 5 , wherein a plurality of different materials are deposited on the insert.

8. The warhead according to claim 5 , wherein the deposited material is reactive.

9. The warhead according to claim 5 , wherein the deposited material has an amorphous structure.

10. The warhead according to claim 5 , wherein the insert has a lesser extension in a direction of a longitudinal axis of the warhead than in a direction transverse to the longitudinal axis.

11. The warhead according to claim 7 , wherein two or more materials are arranged in overlapping layers.

Assignees

• Bae Systems Bofors Ab
• Bae Systems Bofors A B

Inventors

• Hamdan Hamzah
• Thuman Christer
• Johansson Björn

Classifications

• F42B1/036 Primary

  Manufacturing processes therefor {(F42B33/0214 - F42B33/0292 take precedence)} · CPC title

• F42B1/028 Primary

  characterised by the form of the liner · CPC title

• B33Y80/00

  Products made by additive manufacturing · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• F42B1/032 Primary

  characterised by the material of the liner · CPC title