Dissertation > Excellent graduate degree dissertation topics show

Design and Research of Optical Wedge Scanning System for Laser Drilling

Author: XieYunHui
Tutor: ZhuChangHong
School: Huazhong University of Science and Technology
Course: Optical Engineering
Keywords: helical drilling three-wedge optical system ray tracing algorithm
CLC: TN249
Type: Master's thesis
Year: 2011
Downloads: 114
Quote: 1
Read: Download Dissertation

Abstract


As the extension of scope of industrial production, traditional mechanical drilling and electrical discharge machining processing can no longer satisfy the request, which leads to the demand for laser drilling with higher technical indicators.Basic form of laser drilling includes replica method and profile roundabout method. Physical processes and drilling quality of two drilling methods are compared theoretically. In order to obtain micropore with high ratio of pit-depth to pit-diameter, rotary drilling strategy is used and three- wedge scanning optical system and optical path design are carried out. The basic parameters of three-wedge system are calculated and the optical design iscompleted.In order to study the characteristics of the optical system, ray tracing algorithm based on matrix operations for the dynamic optical systems was developed by introducing computer graphics method. The operations of geometric are converted to matrix calculation, this approach is extended to the basic analysis of the dynamic surface to find a feasible procedure. According to this algorithm, the characteristics of dual-wedge scanner are analyzed, analytical solution of focal points on the workpiece surface for the three wedge scanning optical system has been gained on this basis.Simulation of scan patterns is achieved due to the theoretical mentioned above, the algorithm experiments and theoretical results fits well to verify the feasibility of the algorithm with high precision and high efficiency. In the laser drilling experiments, by comparing the quality of punching and helical drilling on different materials, the advantages of rotary drilling program are proved.A complete optical system for laser drilling should include observation and detection system. To get a better hole quality, other processing techniques, such as blowing and surface pretreatment can also be supplemented. In addition, given the goal of continuous path, how to determine the parameters requires further study.

Related Dissertations

  1. Research on Self-Occlusion Detection and Next Best View of Vision Target,TP391.41
  2. Research and Implementation of the model based on physical modeling of light rendering,TP391.41
  3. Research on Realistic Rendering Technology of Complex Scenes,TP391.41
  4. Mechanical Analysis and Experiments of Two-way Helical Closed Screwed Drilling Machine,P634.4
  5. Research on the Laser Drilling of High Quality,TN249
  6. Study of Ray Tracing Algorithm for Volume Rendering,TP391.41
  7. Three-Dimensional Image Reconstruction and Visualization Technic in the PACS,TP399-C8
  8. Research on the Algorithm in RFID Technology,TP391.44
  9. Research and Design for the Laser’s Power Control System of Laser Direct Writing,TN249
  10. Several Key Issues on Closed-Loop Control for Precision Laser Tracking Device,TN249
  11. Research on Signal Receiving System of Phase Laser Range Finder,TN249
  12. Study on High Power Nd:YAG Laser Scanning Galvanometer System,TN249
  13. A Study on UV Laser Micro-machining Single-crystal Silicon,TN249
  14. Research on Galvanometer Scanning Laser Welding System,TN249
  15. Mechanism of Femtosecond Laser Ablation of Metal Target under Liquid Environment,TN249
  16. Pulsed Laser Deposition of Niobium Doped Tio2 as Transparent Conducting Films,TN249
  17. Study on Optimization of Laser Drilling Parameters with Response Surface Methodology,TN249
  18. Study on Laser Welding Teaching and Playback Tracking System,TN249
  19. Research on Structural Features and Performance of β-FeSi2 Prepared Through Laser Sintering,TN249
  20. Experimental Study and Simulation of Temperature Field and Stress Field of Laser Surface Modification,TN249
  21. Investigation on the Beam Path Designing for Selective Laser Micro Sintering and Sintering Behavior,TN249
  22. Research on the Software of Laser Three-dimensional Carving System,TN249

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Laser technology, the maser > Laser applications
© 2012 www.DissertationTopic.Net  Mobile