Laser Surface Structuring for Random Roughness and Logo Integration
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for creating surface structures, such as injection molding tools and embossing dies, often result in surfaces with perceivable regularity, which limits their variability and applicability, especially in incorporating encrypted information or logos for anti-plagiarism purposes.
Innovation Solution
A method utilizing a laser to process surfaces with varying pulse widths, shapes, times, and power, generating filling lines that deviate from a grid pattern, creating a random-looking roughness by using auxiliary lines with different angles, lengths, and random offsets, allowing for the integration of logos or identification features as additional filling elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional methods (injection molding, embossing, electroerosion) are used to create surface structures, then patterns and logos can be incorporated, but the surfaces exhibit perceivable regularity that limits visual randomness
Solution Approach 1:
The patent applies asymmetry by intentionally introducing non-uniform spacing between laser points and varying point densities across different regions of the surface. This creates irregular patterns that eliminate visual regularity while still allowing logos and encrypted information to be incorporated through controlled variations in the random distribution
Solution Approach 2:
The patent changes parameters by varying the spacing, density, and distribution characteristics of laser points across different surface regions. By dynamically adjusting these parameters during the laser processing, the system achieves both visual randomness and the ability to embed specific patterns and information
2Productivity
If laser processing is used with uniform parameters, then efficient surface treatment is achieved, but optical regularity is created that is perceivable by the human eye
Solution Approach 1:
The patent applies local quality by assigning different laser point spacing and density characteristics to different regions of the surface. Each local area has customized parameters that contribute to overall visual randomness, while maintaining efficient processing through automated regional control
Solution Approach 2:
The patent introduces dynamics by continuously varying the laser point spacing and distribution during the processing operation. Rather than using static uniform parameters, the system dynamically adjusts point density and spacing to eliminate regular patterns while maintaining high processing efficiency
3Manufacturing precision
If targeted area coverage is used to generate patterns, then specific structures can be created, but the process becomes more complex and less efficient
Solution Approach 1:
The patent applies preliminary action by pre-defining regional zones with specific density and spacing characteristics before the actual laser processing begins. This preparation stage simplifies the subsequent processing by establishing a framework that automatically guides the laser point distribution, reducing overall process complexity while maintaining pattern accuracy
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
Achieves a surface roughness that is visually random and free of regularity, enhancing the variability of surface properties and enabling secure, encrypted information incorporation.
Implementation Method 1
A method is described for processing a surface (1) with a laser beam (2)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The present invention relates to a method for generating a structure on a contour (10) of a component to be processed by means of treatment with a laser beam, wherein the contour (10) to be processed has at least one fill (12) and an additional fill element, wherein the fills (12) consist at least partially of fill lines (20) which are generated by the laser beam, and wherein each fill (12) has a plurality of parallel auxiliary lines (14) along which the fill lines (20) of this fill (12) substantially extend.