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Depth Model and 5-Axis Variable-Angle Laser Engraving Experiment Based on the Energy Conservation Principle.

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Summary

This study introduces a novel depth model for 5-axis variable-angle laser engraving in chemical milling. The developed adaptive laser power control ensures consistent engraving depth despite changes in scanning velocity and beam angle.

Keywords:
5-axis variable-angle laser engravingadaptive controldepth modelenergy conservation principle

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Area of Science:

  • Materials Science and Engineering
  • Manufacturing Processes
  • Laser Technology

Background:

  • Achieving consistent engraving depth in chemical milling using 5-axis variable-angle laser engraving presents significant challenges.
  • Precise control over laser engraving depth is crucial for manufacturing quality and material integrity.

Purpose of the Study:

  • To develop a reliable depth model for 5-axis variable-angle laser engraving.
  • To propose a depth-constraint real-time adaptive control method for laser power.
  • To validate the effectiveness of the model and control method in ensuring consistent engraving depth.

Main Methods:

  • Established a depth model for 5-axis variable-angle laser engraving based on the energy conservation principle.
  • Proposed a depth-constraint real-time adaptive control method for laser power, accounting for variable scanning velocity and beam axis angles.
  • Identified depth model parameters using an orthogonal experiment and conducted adaptive control experiments.

Main Results:

  • The developed depth model demonstrated high predictive accuracy with a coefficient of determination of 0.977.
  • The adaptive control method achieved stable and uniform machining results even with abrupt changes in scanning velocity and beam axis angles.
  • The study effectively links laser engraving depth to laser power, scanning velocity, and beam axis angle.

Conclusions:

  • The proposed depth model reliably predicts laser engraving depth in 5-axis variable-angle processes.
  • The depth-constraint adaptive control method ensures consistent and uniform machining outcomes.
  • This research advances precise control in laser engraving for chemical milling applications.