Parallel Linear Stitch Weldment Assembly for Stable Joining
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Solution Overview
Problem
Welding process instability in the arc regions of staple welds due to heat accumulation, which affects the strength and reliability of the weldment assembly.
Innovation Solution
A weldment assembly comprising a first and second component coupled through a first and second linear stitch, disposed parallel to each other, with the linear stitches being approximately 5-20 mm apart, and formed in opposite directions to minimize heat accumulation and enhance stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If staple welds with arced regions are used to join components, then additional strength is provided, but heat accumulates in the arc regions causing welding process instability
Solution Approach 1:
The weld is segmented into two separate linear stitches instead of one continuous staple weld with arced regions. Each linear stitch is weldable without excessive heat accumulation, and together they provide the necessary strength while avoiding the instability of arced regions
Solution Approach 2:
The arced regions that cause heat accumulation and instability are extracted/removed from the weld design. The strength function is achieved through alternative means (two linear stitches) without the harmful arced portions
2Strength
If smaller staple welds are used to join components, then smaller components can be coupled securely, but heat accumulation in arc regions causes welding instability
Solution Approach 1:
The weld path is divided into two discrete linear stitches with a gap between them. This segmentation allows each stitch to be controlled precisely without the heat accumulation issues of continuous arced welding, enabling secure coupling of smaller components with better manufacturing precision
3Reliability
If linear stitches are used instead of staple welds, then heat accumulation is minimized, but additional weld length may be required to achieve equivalent strength
Solution Approach 1:
Two linear stitches are combined to achieve the strength equivalent of a staple weld. The parallel arrangement and specific spacing (5-20 mm apart) of the two stitches work together to provide comparable or superior strength to traditional staple welds while maintaining process stability
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 proposed weldment assembly achieves enhanced load-bearing capacity and energy absorption compared to traditional staple welds, while minimizing heat-affected zones and spatter, thus providing a more stable and reliable joining method.
Implementation Method 1
the welding process being one or more of a fusion welding process
Implementation Method 2
a laser beam welding process
Implementation Method 3
an electron beam welding process
Implementation Method 4
a friction stir welding process
Data Source
AI summary
A weldment assembly includes a first component and a second component configured to be coupled to the first component. Additionally, the first component and the second component are coupled through a first linear stitch and a second linear stitch disposed parallel to the first linear stitch.