Fragmentation Warhead With Integrated Metal Elements

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing fragmentation warheads face challenges in manufacturing efficiency and safety due to complex processes and the inability to use conventional x-ray quality control methods, especially when metal balls are involved.

Innovation Solution

A fragmentation warhead design featuring an inner casing with a front and rear liner, a separate molded fragmentation casing with integrated metal elements, and an outer casing, allowing for parallel manufacturing and quality control of the explosive charge without high-pressure testing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If metal balls are filled into the gap between inner core and outer casing, then fragmentation effect is improved, but manufacturing complexity and time increase

Engineering Contradiction:
Improvefragmentation effectVSAvoidmanufacturing process
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent combines the metal balls directly into the fragmentation casing structure during molding, merging the fragmentation elements with the casing itself. This eliminates the separate step of filling metal balls into the gap between inner core and outer casing, reducing manufacturing complexity while maintaining the fragmentation effect.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The warhead is divided into distinct functional components: an inner casing for explosive charge, a fragmentation casing with integrated metal elements, and an outer casing. This segmentation allows each component to be manufactured independently and assembled, simplifying the overall manufacturing process compared to the integrated gap-filling method.

Inventive Principle:
Principle #1Segmentation

2Manufacturing precision

If conventional x-ray is used to control explosive charge filling, then quality control is improved, but it becomes impossible when metal balls are present

Engineering Contradiction:
Improvequality controlVSAvoidx-ray compatibility
Core Design Contradiction:
Manufacturing precisionVSAdaptability or versatility

Solution Approach 1:

By separating the explosive charge containment (inner casing) from the fragmentation elements (fragmentation casing with metal balls), the invention allows x-ray quality control to be applied to the explosive charge filling stage before the fragmentation casing is assembled. This segmentation enables quality control methods to work effectively.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The explosive charge is filled and quality-controlled using conventional x-ray methods before the fragmentation casing with metal balls is assembled around it. This preliminary action allows quality control to be performed when the explosive charge is still accessible and not obscured by metal elements.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If high-pressure testing is performed on warhead with pre-mounted rubber matrix, then safety is improved, but manufacturing time increases

Engineering Contradiction:
ImprovesafetyVSAvoidmanufacturing speed
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The warhead is manufactured as separate components (inner casing, fragmentation casing, outer casing) that can be prepared in parallel. The high-pressure testing can be performed on the assembled warhead after all components are ready, allowing manufacturing steps to be optimized without compromising safety testing.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS12320623B2Fragmentation warhead and a method of manufacturing of a fragmentation warhead
Publication Date: 2025.06.03 SAAB AB
  • US12320623B2 patent drawing
  • US12320623B2 patent drawing
  • US12320623B2 patent drawing

AI summary

The present invention relates to a fragmentation warhead, including: an inner casing accommodating explosive charge; a fragmentation casing at least partly surrounding the inner casing; and an outer casing arranged outside the inner casing and the fragmentation casing; wherein the inner casing includes a front liner and a rear liner, which are connected to each other and wherein the fragmentation casing comprises a molded casing with integrated metal elements.