Adaptive Laser Beam Speed Control for Uniform Energy Distribution
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Solution Overview
Problem
Typical laser cutting devices emit a constant laser beam speed regardless of the object's varying characteristics, leading to incomplete cuts in regions with different absorption coefficients.
Innovation Solution
A laser cutting device with a moving part, characteristic value input part, and control part that adjusts the laser beam's speed based on stored characteristic information, ensuring uniform energy absorption across regions with different absorption coefficients.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the laser beam speed is kept constant, then the cutting process is simple and fast, but the cutting quality deteriorates in regions with different absorption coefficients
Solution Approach 1:
The laser cutting device dynamically adjusts the laser beam speed based on the absorption coefficient of different regions. The control part receives characteristic values indicating absorption coefficients and varies the moving speed of the laser beam accordingly, transforming a static constant-speed process into a dynamic adaptive-speed process that maintains cutting quality across heterogeneous materials.
Solution Approach 2:
The invention changes the speed parameter of the laser beam during the cutting process. By varying the laser beam speed according to the absorption coefficient characteristics of different regions, the system optimizes energy delivery to ensure complete cutting while maintaining high productivity in regions with favorable absorption properties.
2Manufacturing precision
If the laser beam speed is varied according to absorption coefficients, then the cutting quality improves, but the device complexity increases
Solution Approach 1:
The control system implements a feedback mechanism where characteristic values representing absorption coefficients are input into the control part, which then adjusts the laser beam speed accordingly. This closed-loop control ensures that the laser parameters are continuously optimized based on material characteristics, achieving high cutting quality through adaptive regulation.
Solution Approach 2:
The invention introduces an intermediary control system that mediates between the laser source and the material being cut. This control part receives characteristic information about the material's absorption properties and translates this information into appropriate laser beam speed adjustments, acting as an intelligent intermediary that simplifies the overall system architecture while enabling complex adaptive behavior.
3Manufacturing precision
If the laser beam speed is adjusted for different regions, then energy distribution becomes uniform, but the processing time increases
Solution Approach 1:
The laser cutting process applies local quality control by adjusting the laser beam speed according to the specific absorption characteristics of each region being cut. Rather than using a uniform speed across the entire workpiece, the system tailors the cutting speed to local material properties, ensuring optimal energy delivery and complete cutting in each specific region while maintaining overall efficiency.
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 complete cutting of objects with regions having different characteristics by varying the laser beam speed according to absorption coefficients, preventing incomplete cuts.
Implementation Method 1
a laser beam emitting unit 4 that emits a laser beam L
Implementation Method 2
different characteristics (e.g. absorption coefficients) of an object to be cut
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Provided is a laser cutting device and method which changes a cutting speed of a laser according to a difference between characteristics (absorption coefficients) of an object to be cut, so as to uniformly supply an energy of laser to the whole of the object, thereby preventing the object from being incompletely cut. A laser cutting device includes a database that stores information about a cutting pattern, a moving part that changes a location of a laser beam emitted to an object to be cut, a characteristic value input part that receives speed information from a user according to locations on the cutting pattern, and a control part that adjusts a moving speed of the laser beam by controlling the moving part according to the speed information from the characteristic value input part, and the information about the cutting pattern from the data base.