Laser Processing Workability Assessment via Preliminary Beam Sensing
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Solution Overview
Problem
Laser processing machines cannot determine the processing possibility of a workpiece prior to product processing, leading to wasteful consumption as actual testing is required.
Innovation Solution
A laser processing machine with a laser processing unit, control unit, beam detection unit, and processing determination unit that performs preliminary processing and determines workability based on light intensity distribution in a predetermined wavelength band, allowing for assessment before product processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If preliminary processing is performed to determine workability before product processing, then workpiece waste is reduced, but additional time and equipment complexity are required for the preliminary assessment
Solution Approach 1:
The system performs preliminary processing and workability determination before actual product processing. The control unit executes preliminary processing on the workpiece, the beam detection unit measures light intensity distribution during this preliminary phase, and the processing determination unit assesses whether normal processing is possible based on the measured data. This preliminary action prevents wasteful consumption of workpieces by identifying unsuitable materials before committing to full product processing.
2Measurement precision
If light intensity distribution measurement is used to determine processing possibility, then accurate workability assessment is achieved, but device complexity increases due to additional detection and determination units
Solution Approach 1:
The beam detection unit, which detects light intensity distribution in a specific wavelength band, serves multiple functions: it monitors the processing state during preliminary processing and provides data for workability determination. The processing determination unit integrates this detection data to assess whether normal processing is possible. This multi-functional approach achieves accurate workability assessment while avoiding excessive device complexity by reusing detection capabilities across different processing phases.
3Reliability
If traditional monitoring methods are used during product processing, then processing state can be monitored, but workability cannot be determined prior to product processing leading to workpiece consumption
Solution Approach 1:
The system performs preliminary processing and workability determination before actual product processing. The control unit executes preliminary processing on the workpiece, the beam detection unit measures light intensity distribution during this preliminary phase, and the processing determination unit assesses whether normal processing is possible based on the measured data. This preliminary action prevents wasteful consumption of workpieces by identifying unsuitable materials before committing to full product processing.
Solution Approach 2:
The beam detection unit continuously measures light intensity distribution during preliminary processing, and the processing determination unit uses this feedback to determine workability. The system establishes a feedback loop where detection data from preliminary processing informs the decision about whether to proceed with normal product processing, enabling reliable workability assessment without consuming excessive workpieces.
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 determination of workpiece processing possibility before product processing, reducing waste and optimizing conditions for successful laser processing.
Implementation Method 1
a beam detection unit configured to detect a beam from a processing portion of the workpiece irradiated with the laser beam... The beam detection unit is capable of detecting a light intensity distribution of the beam in a predetermined wavelength band
Implementation Method 2
a laser processing unit configured to irradiate a workpiece with a laser beam to carry out laser processing on the workpiece
Data Source
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.