Spherical Welding Torch Structure for Cooling and Flashover Control
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Solution Overview
Problem
Conventional welding torches face challenges in minimizing size while maintaining welding characteristics, ensuring efficient cooling, and avoiding electrical flashovers, which restricts their flexibility and application in various technical fields.
Innovation Solution
A welding torch with a substantially spherical main body and integrated coolant chamber, manufactured using additive manufacturing, allowing for a compact design with enhanced cooling capabilities and 360° orientation flexibility, along with an integrated welding gas supply channel for optimized flow paths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the welding torch size is reduced, then the welding torch can be used in different applications and the overall volume is minimized, but the cooling capability is compromised
Solution Approach 1:
The coolant chamber is nested within the spherical main body of the welding torch, with the coolant channel forming an integrated internal structure. This nesting allows the cooling system to be contained within the compact torch volume without requiring additional external space, thereby maintaining cooling capability while minimizing overall size.
Solution Approach 2:
The coolant channel is designed to extend in multiple spatial dimensions within the spherical main body, maximizing the cooling surface area and coolant flow path within the constrained volume. This multi-dimensional arrangement of the cooling system ensures adequate heat dissipation despite the reduced overall torch size.
2Adaptability or versatility
If a separately formed guiding component is used to ensure flexibility, then the welding torch can be moved along a predefined path, but the device complexity increases and the path is restricted by the C-shaped guiding component
Solution Approach 1:
The spherical main body serves multiple functions: it acts as the structural housing, contains the integrated coolant chamber, provides the ball joint interface for positioning, and defines the overall compact geometry. This multi-functionality eliminates the need for separate guiding components, reducing device complexity while maintaining flexibility through the ball joint mechanism.
Solution Approach 2:
The guiding function is merged with the ball joint mechanism and spherical main body structure, rather than being implemented through a separate C-shaped guiding component. This integration simplifies the overall device structure while preserving the ability to position the welding torch along circular paths and adjust orientations.
3Ease of manufacture
If conventional manufacturing methods are used, then the production process is well-established, but the welding torch design is restricted and adaptation to specific requirements is difficult
Solution Approach 1:
Additive manufacturing enables easy modification of design parameters such as the spherical geometry, internal coolant channel configuration, and integration features without requiring new tooling or fixtures. This parameter flexibility allows rapid adaptation to specific application requirements while maintaining manufacturing feasibility through established 3D printing processes.
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 spherical design minimizes electrical flashovers, improves cooling efficiency, and increases flexibility, resulting in improved welding performance and seam quality, while reducing overall costs and enabling adaptation to specific requirements through additive manufacturing.
Implementation Method 1
the coolant flowing through the coolant chamber interacts with the hot area of the welding torch in a maximized area. Thus, the cooling effect is improved
Implementation Method 2
The spherical shape of the main body ensures that the risk of electrical flashovers is minimized during usage of the welding torch due to the specific shape of the welding torch
Data Source
Figure 1
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AI summary
A welding torch (18) for a welding system (10) is described, which comprises a substantially spherical main body (20) that has an integrated coolant chamber (60) which is in fluid communication with at least one coolant port (62). The substantially spherical main body (20) is a joint head (22) of a ball joint (24) of the welding system (10). Further, a welding system (10), a method of producing a welding torch (18) as well as a computer-readable medium are described.