Laser Spot Processing with Inline Parameter Estimation
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Solution Overview
Problem
Conventional laser processing methods face complexity in parameter estimation due to reliance on three-dimensional mapping data, leading to slow processing and evaluation, particularly in spot processing where small regions require numerous operations.
Innovation Solution
A method and device for laser processing that estimates parameters by acquiring pre-processing spot data and using an estimation program to determine optimum laser light parameters for each planned irradiation spot, allowing high-speed and uniform processing across multiple spots.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If three-dimensional mapping data is used for parameter estimation, then measurement precision is improved, but processing time increases and productivity decreases
Solution Approach 1:
The patent extracts only the necessary pre-processing spot data features from the complete three-dimensional mapping data, such as surface roughness parameters and material properties. By taking out only the essential features needed for parameter estimation rather than processing the entire three-dimensional dataset, the system achieves accurate parameter estimation while dramatically reducing data processing time and computational complexity.
2Measurement precision
If conventional three-dimensional mapping data processing is used, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The system extracts and processes only the essential pre-processing spot data features required for parameter estimation, such as surface roughness and material properties, rather than handling the complete three-dimensional mapping data. This extraction approach maintains measurement precision while significantly simplifying the data processing system and reducing computational complexity.
Solution Approach 2:
The patent creates a simplified representation or copy of the essential surface state features from the complex three-dimensional mapping data. Instead of processing the entire three-dimensional dataset, the system works with extracted feature copies (pre-processing spot data) that contain the necessary information for parameter estimation, thereby reducing device complexity while preserving measurement accuracy.
3Manufacturing precision
If spot processing is performed on small regions, then manufacturing precision is improved, but the total number of processing operations increases and productivity decreases
Solution Approach 1:
The patent performs preliminary acquisition of pre-processing spot data and estimation of optimal processing parameters before actual spot processing begins. By pre-processing and pre-planning the processing parameters for all spots based on extracted surface features, the system enables rapid execution of numerous spot processing operations without repeated measurement and decision-making, thereby maintaining high spatial resolution while improving overall productivity.
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
Enables high-speed estimation and inline evaluation of surface states before and after processing, improving spatial resolution and processing efficiency by reducing data processing complexity and ensuring uniform surface states.
Implementation Method 1
a pre-processing acquisition step of radiating an inspection beam to a planned irradiation spot of the processing laser light on the surface of an object and acquiring pre-processing spot data about a pre-processing surface state of the object in the planned irradiation spot on the basis of a result of radiating the inspection beam
Implementation Method 2
performing spot processing of a surface of an object by radiating processing laser light to the surface
Implementation Method 3
research and development (R&D) of processing methods for surface polishing processing, surface water repellent processing, and surface hydrophilic processing using material melting and resolidification
Data Source
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AI summary
According to this laser processing method, an inspection beam Lb is radiated to a planned irradiation spot K of processing laser light Lw on a surface Sa of an object S, pre-processing spot data D1 about a pre-processing surface state of the object is acquired, an optimum parameter D2 of the processing laser light Lw is estimated using an estimation program 26 that outputs a result of estimating the optimum parameter of the processing laser light Lw in accordance with an input of the pre-processing spot data D1, and the planned irradiation spot K is irradiated with the processing laser light Lw on the basis of an optimum parameter estimation result D2.