Brazed Panel Junction Layout to Prevent Humped Weld Intersections
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Solution Overview
Problem
Laser brazing of panels with intersecting welding lines often results in a 'spring back' phenomenon, leading to poor welds due to humped weld beads at intersection points, which complicates design and quality assurance.
Innovation Solution
A method and component design where overlapping junction parts are brazed with a preceding and following weld, ensuring the following weld intersects at a distance from the start and end points of the preceding weld, avoiding humped areas and reinforcing edge rigidity with a bent flange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If laser brazing is performed on panels with intersecting welding lines, then welding efficiency and productivity are improved, but spring back phenomenon and humped weld beads occur at intersection points causing poor weld quality
Solution Approach 1:
The patent applies preliminary action by performing a first weld before the intersecting welding line reaches the intersection point. This pre-welding action prepares the joint area in advance, preventing spring back and humped bead formation when the second welding line arrives at the intersection, thus maintaining weld quality while preserving productivity
Solution Approach 2:
The welding process is segmented into distinct sequences: a first weld is performed on one panel, and a second weld is performed on another panel with controlled spacing from the first weld's endpoint. This segmentation prevents overlapping at intersection points, eliminating the spring back phenomenon while maintaining efficient multi-line welding
2Manufacturing precision
If welding lines are arranged to avoid overlapping at intersection points, then weld quality is improved, but design flexibility and adaptability are reduced
Solution Approach 1:
The patent introduces dynamic control into the welding process by adjusting the spacing distance between the endpoint of the first weld and the start point of the second weld. This dynamic parameter adjustment allows the welding system to adapt to different design configurations while maintaining optimal weld quality, thus preserving design flexibility
Solution Approach 2:
The patent changes the critical parameter of welding line spacing by defining a specific distance relationship between the endpoint of one weld and the start point of another. This parameter optimization ensures non-overlapping welds at intersections, improving weld quality without constraining design options
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
Prevents defects in welding areas by ensuring stable and high-quality brazing of intersecting panels, maintaining design integrity and quality.
Implementation Method 1
laser brazing may be used depending on quality assurance and exterior design needs
Data Source
AI summary
A method for producing a component by brazing and a related component are disclosed. The component may include a first part, a second part and a third part, wherein the first part includes a first junction part, the second part includes a second junction part and a cross junction part, and the third part includes a third junction part, and wherein the third junction part has a part and a remaining part. In an embodiment the method includes coupling the first part and the second part to each other by performing a preceding weld in a state of overlapping a part of the first junction part and the second junction part and, after performing the preceding weld, coupling the first part, the second part, and the third part to each other by performing a following weld.