Laser Beam Machine Power Distribution Control
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Solution Overview
Problem
Laser beam machines face issues with unstable laser output and accelerated aged deterioration of certain laser modules due to uneven usage and wavelength differences, leading to reliability concerns in machining.
Innovation Solution
A laser beam machine with a calculation device that adjusts the power supply to laser modules based on machining conditions, reducing differences in integrated laser-output times to evenly distribute the workload and prevent excessive usage of specific modules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If all laser modules are operated to generate laser beams, then the laser output can be maintained, but the laser modules operate around the oscillation threshold causing unstable laser beam and deteriorated reliability
Solution Approach 1:
The patent applies dynamics by making the laser module selection and power distribution adaptive rather than static. The calculation device dynamically determines which laser modules to operate and how to distribute power based on real-time integrated output time differences, ensuring modules operate in stable regions away from oscillation thresholds while maintaining required laser output.
2Adaptability or versatility
If laser modules with different wavelengths are used, then machining conditions can be optimized, but particular laser modules are heavily used causing accelerated aged deterioration
Solution Approach 1:
The patent implements feedback by continuously monitoring the integrated laser output time of each module and using this information to adjust power distribution. The calculation device calculates driving conditions based on accumulated usage data, creating a closed-loop system that balances workload across modules with different wavelengths, preventing any single module from being overused and accelerating deterioration.
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 effectively suppresses aged deterioration of particular laser modules, enhancing the reliability and stability of laser machining by averaging power supply and reducing the frequency of power supply differences between modules.
Implementation Method 1
a light condensing unit to condense laser beams generated from the laser modules to output one laser beam
Data Source
AI summary
A laser beam machine includes a number of laser modules that each generate a laser beam and a combiner that collects a plurality of laser beams generated from the laser modules to output one laser beam. The laser beam machine further includes a plurality of driving power supplies that supply power to the laser modules, respectively, a calculation device that calculates a driving condition for each of the laser modules according to a received machining condition, and a power-supply control apparatus that causes the driving power supplies to supply power to the laser modules in accordance with the driving condition. The calculation device controls the power-supply control apparatus to reduce differences in integrated laser-output times of the laser beams generated by the laser modules.