Continuous Brazing Wire Feed for Confined Space Efficiency
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Solution Overview
Problem
Current manual brazing processes are inefficient, particularly in confined spaces, result in significant material waste, and require frequent rod changes, leading to delays and inefficiencies.
Innovation Solution
A semi-automatic brazing apparatus that uses a continuous brazing wire fed through a feeding mechanism and gun, allowing for continuous operation with minimal waste and increased efficiency by reducing the need for frequent rod changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual brazing with rigid rods is used, then the brazing process can be completed, but the operator must frequently stop to change rods and material waste occurs
Solution Approach 1:
The patent employs a continuous flexible wire feed system that eliminates the need to stop brazing for rod changes. The wire is fed continuously through the flame from a remote supply, maintaining uninterrupted brazing operation and eliminating downtime associated with rod changes.
Solution Approach 2:
The brazing system is divided into separate components: a remote wire supply, a feeding mechanism, and a handheld gun. This segmentation allows the wire supply to be positioned independently from the brazing location, enabling continuous feed without operator intervention for rod changes.
2Ease of manufacture
If rigid brazing rods are used, then brazing can be performed, but approximately 10% of each rod length is wasted due to inability to use the held portion
Solution Approach 1:
The patent changes the physical form of the brazing material from rigid rods to flexible wire. This parameter change allows the material to be fed continuously and used completely, eliminating the waste associated with rigid rods that cannot be fully consumed.
Solution Approach 2:
The continuous wire feed system ensures that virtually 100% of the brazing material is utilized. The wire can be fed to the exact length needed and completely consumed without the waste inherent in rod-based systems where approximately 10% is always wasted.
3Duration of action of moving object
If long rigid brazing rods are used, then the brazing process can continue without changes, but the rods are difficult to handle in confined spaces
Solution Approach 1:
The patent replaces rigid rods with flexible wire that can be bent and routed through confined spaces. The flexible nature of the wire allows it to navigate tight areas and complex geometries that rigid rods cannot access, while the remote feed system provides the necessary length.
Solution Approach 2:
The system separates the wire supply location from the brazing location, adding a spatial dimension to the operation. The wire can be fed through conduits or routed around obstacles in three-dimensional space, allowing access to confined areas without requiring the operator to be in difficult positions.
4Ease of operation
If short brazing rod segments are used to work in confined spaces, then maneuverability is improved, but the rods are consumed quicker requiring frequent changes
Solution Approach 1:
The continuous wire feed system maintains uninterrupted brazing operation even in confined spaces. The wire can be fed continuously through the flame without stopping, eliminating the frequent rod changes required when using short segments, thus maintaining both maneuverability and productivity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution significantly reduces material waste and increases operational efficiency, enabling nearly 100% consumption of the brazing wire, compared to 90% with traditional rods, and allows for more efficient use in challenging environments.
Implementation Method 1
This distribution occurs via capillary action, where the filler metal is drawn into the gaps between the parts to be brazed.
Implementation Method 2
During the brazing process the filler metal is melted via high heat
Implementation Method 3
Upon cooling the filler metal forms a bond between the joined pieces.
Data Source
AI summary
A semi-automatic brazing apparatus having a brazing wire feeding apparatus containing a brazing wire feed mechanism, a controller, and a user input device. The brazing wire from a brazing wire source is continuously drawn from the source through the apparatus via the feeding mechanism and is directed towards a brazing gun for a semi-automatic brazing operation.