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      Modeling and cross coupling controller development for a 6DOF laser micro-machining system

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      Author
      Kerimoğlu, Serhat
      Çakmakçı, Melih
      Date
      2017
      Source Title
      Proceedings of the 2017 American Control Conference, ACC 2017
      Print ISSN
      0743-1619
      Publisher
      IEEE
      Pages
      2201 - 2206
      Language
      English
      Type
      Conference Paper
      Item Usage Stats
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      Abstract
      In recent years, studies on manufacturing systems have proved the importance of cooperation of positioning systems with laser cutting technology. The performance of the manufacturing system can be improved by utilizing both laser and positioning systems together. In this study, modeling and cross coupling controller development of a micromachining system which can perform on non-linear contoured surfaces is presented. Laser micromachining system is designed and assembled including a nanosecond Q-switched pulsed fiber laser, a 6-DOF hexapod manipulator, a granite table in order to absorb vibrations and an external cabin system to isolate the whole system for safety and health issues. The positioning system used here has fast response and precise positioning capabilities with a wide range of workspace. However, its performance of machining non-linear surfaces can be further improved by using a cross coupled control algorithm. On top of the loop based controllers an add-on controller is developed to improve the contouring performance by including the effects of the other feedback loops on the overall controller. Actual laser cutting results also show improvements due to the improvements in the positioning system performance.
      Keywords
      Chemical reactions
      Composite micromechanics
      Fiber lasers
      Laser applications
      Laser beam cutting
      Laser beams
      Laser safety
      Pulsed lasers
      Cross coupled control
      Cross-coupling controller
      Hexapod manipulator
      Laser micro-machining
      Positioning system
      Precise positioning
      Pulsed fiber lasers
      Safety and healths
      Micromachining
      Permalink
      http://hdl.handle.net/11693/37537
      Published Version (Please cite this version)
      http://dx.doi.org/10.23919/ACC.2017.7963279
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      • Department of Mechanical Engineering 254
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