Laser Processing Workability Detection via Preliminary Beam Analysis
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Solution Overview
Problem
Existing laser processing machines struggle to determine the processing possibility of workpieces prior to product processing due to individual material variations, leading to potential failures in normal processing.
Innovation Solution
A laser processing device that performs preliminary processing on workpieces using a beam detection unit to analyze light intensity distribution, allowing a processing determination unit to assess processing possibility based on this data, thereby determining optimal conditions before product processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If preliminary processing is performed to determine workpiece processability, then processing reliability is improved, but processing time is increased
Solution Approach 1:
The system performs preliminary processing (test machining) before actual product machining to determine workpiece processability. This preliminary action includes irradiating the workpiece with a laser beam and detecting reflected light characteristics to assess whether the workpiece can be properly processed, thereby preventing wasted time on incompatible materials later
Solution Approach 2:
The preliminary processing uses partial action by performing only essential test operations (laser irradiation and reflected light detection) rather than complete machining. This minimal test approach determines processability without requiring full processing cycles, thus reducing time overhead while maintaining reliability
2Speed
If high power laser is used for processing, then processing speed is improved, but energy consumption and equipment wear increase
Solution Approach 1:
The system dynamically adjusts laser power based on workpiece material detection results. After preliminary processing identifies the workpiece type and characteristics, the control unit selects optimal processing conditions including appropriate power levels. This dynamic adjustment ensures high power is used only when necessary for actual machining, reducing overall energy consumption while maintaining processing speed
Solution Approach 2:
The system changes processing parameters (laser power, pulse duration, frequency) based on detected workpiece characteristics. The control unit stores multiple sets of processing conditions corresponding to different material types and selects the appropriate set after preliminary analysis, optimizing the balance between processing speed and energy consumption for each specific workpiece
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 accurate determination of workpiece processing capability before product processing, reducing waste, minimizing equipment wear, and optimizing power consumption by using lower power levels during preliminary processing.
Implementation Method 1
the beam detection unit being capable of detecting a light intensity distribution of the beam in a predetermined wavelength band
Data Source
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AI summary
A laser processing machine includes a laser processing unit that irradiates a workpiece with a laser beam to carry out laser processing on the workpiece, a control unit that controls the laser processing unit in accordance with a processing condition under which the workpiece is processed, a beam detection unit that detects a beam from a processing portion of the workpiece irradiated with the laser beam, and a processing determination unit connected to the beam detection unit. The control unit controls the laser processing unit in a product processing mode for carrying out product processing of the workpiece and in a preliminary processing mode for carrying out preliminary processing of the workpiece prior to the product processing. The beam detection unit is capable of detecting a light intensity distribution of the beam in a predetermined wavelength band. The processing determination unit determines a processing possibility (workability) of the workpiece based on the light intensity distribution detected by the beam detection unit during the preliminary processing.