Stud Fastening Through Local Recess Sealing on Coated Substrates
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Solution Overview
Problem
Existing methods for fastening studs to substrates are user-dependent, time-consuming, and require surface layer removal and subsequent repair, especially when the substrate has a coating or dirt layer, which affects connection quality and efficiency.
Innovation Solution
A method involving a recess creation in the substrate surface layer, followed by liquefaction and solidification with a covering element to facilitate stud attachment, potentially sealing the joint and simplifying surface layer repair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the surface layer is ground over a large area before fastening the stud, then the connection quality is improved, but the process time is increased
Solution Approach 1:
The invention applies local quality by creating a recess only in the specific area where the stud will be fastened, rather than grinding the entire surface. This localized approach removes the surface layer precisely where needed for the fastening process, improving connection quality without the time penalty of extensive surface preparation.
Solution Approach 2:
The recess is created in advance before the fastening operation, preparing the substrate surface in advance with the exact geometry needed for the stud insertion. This preliminary action ensures that when the stud is inserted and the surface layer is removed, the connection is immediately optimized without requiring additional time-consuming steps.
2Manufacturing precision
If the surface layer is removed and then repaired with new coating or corrosion protection layer, then the connection quality is improved, but the process complexity is increased
Solution Approach 1:
The invention extracts the surface layer removal step from the overall process by creating a recess that isolates the surface layer removal to a confined area. The covering element then protects this area, eliminating the need for subsequent repair operations and simplifying the overall process while maintaining connection quality.
Solution Approach 2:
The covering element acts as a temporary protective component that is used only during and immediately after the fastening process. It protects the exposed substrate area without requiring permanent repair measures, effectively serving as a disposable solution that simplifies the overall process.
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
Enhances stud attachment ease and quality by reducing user dependency and eliminating the need for post-fastening surface layer repair, while ensuring a sealed and integral connection.
Implementation Method 1
an electric current is applied to it. As soon as the electric current flows between the stud and the substrate, the stud is lifted off the substrate to form an arc. The energy that is released causes the material of the stud and of the substrate to be partially liquefied.
Implementation Method 2
the stud is lifted off the substrate to form an arc. The energy that is released causes the material of the stud and of the substrate to be partially liquefied.
Implementation Method 3
The electric current is then switched off and the stud is immersed in the liquefied material while this material cools down and becomes solid.
Data Source
AI summary
A method is provided for fastening a stud to a substrate having a surface layer, in which a recess is created in the substrate, the stud is connected to the substrate in the recess, and the recess around the stud is covered.