Laser Texturing of Contoured Surfaces via Dynamic Scanning
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Solution Overview
Problem
Traditional methods for creating textured patterns on surfaces, such as injection molding and etching, face challenges in forming continuous patterns over large areas without seams or distortions, especially on contoured surfaces, and struggle to account for surface irregularities, leading to visually undesirable results.
Innovation Solution
A method using a laser to form continuous textured patterns by rotating the part or laser while maintaining a constant angle of incidence, allowing for seamless transitions between patterns and adapting to surface geometry through optical scanning and texturing parameters, enabling uniform and seamless patterns on complex surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If traditional etching or cutting operations are used to form patterns on the surface, then the pattern can be applied to the surface, but the pattern is limited to a small area and requires multiple operations for larger areas, resulting in seams or gaps between patterns
Solution Approach 1:
The patent divides the large-area texturing operation into multiple overlapping regions that are processed sequentially. Each region is textured independently using the laser, with overlap areas ensuring continuous coverage. This segmentation allows the system to handle areas larger than the laser's immediate processing zone while maintaining pattern continuity through careful coordination of the texturing head movement and laser activation.
Solution Approach 2:
The patent replaces traditional mechanical etching or cutting tools with a laser-based texturing system. This substitution eliminates the need for physical contact between the tooling and the part surface, allowing for more flexible and precise control of the texturing process. The laser can be precisely positioned and controlled to create consistent patterns across large areas without the mechanical limitations and alignment issues of traditional tools.
2Area of stationary object
If multiple patterns are applied to form a large continuous pattern, then the coverage area is increased, but seams or gaps appear between the patterns and alignment becomes difficult
Solution Approach 1:
The patent implements continuous laser texturing by coordinating the movement of the texturing head with the laser activation. The laser remains active throughout the entire texturing process, creating a continuous pattern without interruption. The system controls the laser to turn on and off at precise positions, ensuring that overlapping regions are properly textured and that there are no gaps or seams in the final pattern.
Solution Approach 2:
The patent employs feedback control to monitor and adjust the texturing process in real-time. Sensors detect the position of the texturing head and the characteristics of the textured surface, providing information to the control system. This feedback allows the system to make real-time adjustments to maintain pattern consistency, proper overlap between regions, and seamless transitions, thereby simplifying the overall manufacturing process.
3Shape
If traditional techniques are used to pattern contoured or curved surfaces, then the surface can be textured, but distortions or visible variations appear within the pattern along the curvature
Solution Approach 1:
The patent uses a dynamic texturing system where the laser parameters and texturing head positioning are continuously adjusted to accommodate the contoured surface geometry. The system modifies the laser pulse characteristics, scanning speed, and head-to-surface distance in real-time based on the local surface conditions. This dynamic adaptation ensures that the pattern remains uniform and consistent across curved and contoured surfaces, eliminating distortions that would occur with static, fixed-parameter systems.
4Productivity
If traditional techniques are used to form patterns on surfaces with irregularities, then the patterning operation can be completed, but the pattern becomes inconsistent and visually undesirable
Solution Approach 1:
The patent employs feedback control to monitor and adjust the texturing process in real-time. Sensors detect the position of the texturing head and the characteristics of the textured surface, providing information to the control system. This feedback allows the system to make real-time adjustments to maintain pattern consistency, proper overlap between regions, and seamless transitions, thereby simplifying the overall manufacturing 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
This approach enables the creation of uniform, seamless, and visually consistent textured patterns over extended areas, including contoured surfaces, without seams or distortions, effectively addressing the limitations of traditional techniques.
Implementation Method 1
A first textured pattern may be formed on a first region of the surface of the part using a laser beam, and a second textured pattern may be formed on a second region of the surface of the part
Data Source
AI summary
Systems and methods for producing a textured pattern on a surface of a part using a laser. The part or laser may be rotated while forming the textured pattern to create a continuous textured pattern on a surface of a part. The continuous textured pattern may be substantially uniform over the entire pattern. A laser texturing system may also include an optical scanner. A first region of the surface of the part may be scanned using a first laser beam. One or more laser texturing parameters or a simulated geometric model may be created based on the scan of the first region. The textured pattern may be formed on the first region using a second laser beam. The textured pattern may be formed in accordance with the one or more laser texturing parameters or simulated geometric model.