Interchangeable Pistol Barrel System Using Segmented Steel and Aluminum Components
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Solution Overview
Problem
Conventional pistol barrels made of steel are heavy and limit customization options, while aluminum barrels are not durable enough to withstand combustion forces, restricting the versatility and aesthetic customization of firearms.
Innovation Solution
An interchangeable barrel system combining a lightweight aluminum receiver with a structurally self-supporting steel barrel insert, featuring an anti-rotation device and locking mechanism to securely attach the insert, allowing for easy swapping of inserts and receivers for different calibers and configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If steel is used for the barrel, then durability and strength are improved, but weight increases
Solution Approach 1:
The barrel system is divided into two separate components: a steel barrel insert for durability and an aluminum receiver for lightness. The steel insert is removably mounted within the aluminum receiver, allowing each material to perform its optimal function without the penalty of combined weight. This segmentation resolves the contradiction by separating the structural support function (aluminum receiver) from the high-stress barrel function (steel insert).
Solution Approach 2:
The system combines two different materials (steel and aluminum) into a composite barrel assembly where each material contributes its superior properties. The steel insert provides combustion resistance and durability, while the aluminum receiver provides lightness and aesthetic customization. This composite approach allows the pistol to achieve both strength and weight reduction simultaneously.
2Weight of moving object
If aluminum is used for the barrel, then weight is reduced, but durability and combustion resistance deteriorate
Solution Approach 1:
The barrel system is divided into two separate components: a steel barrel insert for durability and an aluminum receiver for lightness. The steel insert is removably mounted within the aluminum receiver, allowing each material to perform its optimal function without the penalty of combined weight. This segmentation resolves the contradiction by separating the structural support function (aluminum receiver) from the high-stress barrel function (steel insert).
Solution Approach 2:
The system combines two different materials (steel and aluminum) into a composite barrel assembly where each material contributes its superior properties. The steel insert provides combustion resistance and durability, while the aluminum receiver provides lightness and aesthetic customization. This composite approach allows the pistol to achieve both strength and weight reduction simultaneously.
3Strength
If steel barrels are used, then durability is improved, but aesthetic customization options are limited
Solution Approach 1:
The barrel system is divided into two separate components: a steel barrel insert for durability and an aluminum receiver for lightness. The steel insert is removably mounted within the aluminum receiver, allowing each material to perform its optimal function without the penalty of combined weight. This segmentation resolves the contradiction by separating the structural support function (aluminum receiver) from the high-stress barrel function (steel insert).
Solution Approach 2:
The aluminum receiver serves multiple functions: it provides structural support, enables aesthetic customization through various finishes and colors, and houses the removable steel insert. This multi-functionality allows the same receiver to accommodate different steel inserts while providing extensive aesthetic options, resolving the contradiction between durability and customization.
4Reliability
If permanent attachments are used for barrel fixation, then reliability is improved, but ease of interchangeability deteriorates
Solution Approach 1:
The barrel fixation system transitions from a static permanent attachment to a dynamic removable attachment. The steel insert can be securely mounted using threadable fasteners or set screws that provide reliable fixation during firing, yet can be easily removed and replaced when caliber changes are needed. This dynamic approach allows the system to switch between reliable fixation and easy interchangeability based on operational needs.
Solution Approach 2:
The steel insert is designed with pre-formed threading or mounting features that facilitate easy installation and removal. The receiver is similarly prepared with corresponding mounting structures, allowing rapid interchange of barrels without requiring complex assembly procedures. This preliminary preparation of mounting interfaces enables both reliable fixation and easy interchangeability.
Data Source
AI summary
An interchangeable barrel system and related method for a pistol includes a barrel insert having an anti-rotation protrusion and a receiver having a complementary configured socket configured for receiving the protrusion. An embodiment of a barrel insert includes a chamber for holding a cartridge and a locking mechanism configured for releasahly securing the barrel insert to the receiver. In some embodiments, the Socking mechanism comprises a threaded engagement between the barrel insert and receiver. The system allows barrel inserts of different calibers, configurations, and materials to be swapped with the receiver, and vice-versa.