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Volume 40 Issue 1
Nov.  2015
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Research advance and development of laser remanufacture closed-loop control systems

  • Corresponding author: DONG Shiyun, syd422@sohu.com
  • Received Date: 2014-11-18
    Accepted Date: 2015-02-15
  • The application of closed-loop control system in laser remanufacture is important to improve dimension precision, automation of forming course and intellectualization and has broad space to develop. Typical closed-loop control systems adopting molten geometry, 3-D size, molten pool temperature, laser power and multi-signal combination as monitoring methods, were analyzed from the principle and structures of closed-loop control systems. Meanwhile, the main control methods, such as laser position adjustment, powder feeding rate regulation or laser power control were introduced. Further, key links of construction were summarized in view of top-level design, sensor accuracy, algorithm complexity, reliability and system real-time. Based on the analysis of progress and related limitations of closed-loop control systems aboard and in China, construction difficulty of closed-loop control system was analyzed and concluded. The development directions, such as algorithm intellectualization, sensors integration, controlling parameters comprehensiveness, monitoring controlling network, were also put forward.
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Proportional views

Research advance and development of laser remanufacture closed-loop control systems

    Corresponding author: DONG Shiyun, syd422@sohu.com
  • 1. National Key Laboratory for Remanufacturing, Academy of Armored Forces Engineering, Beijing 100072, China;
  • 2. 2

Abstract: The application of closed-loop control system in laser remanufacture is important to improve dimension precision, automation of forming course and intellectualization and has broad space to develop. Typical closed-loop control systems adopting molten geometry, 3-D size, molten pool temperature, laser power and multi-signal combination as monitoring methods, were analyzed from the principle and structures of closed-loop control systems. Meanwhile, the main control methods, such as laser position adjustment, powder feeding rate regulation or laser power control were introduced. Further, key links of construction were summarized in view of top-level design, sensor accuracy, algorithm complexity, reliability and system real-time. Based on the analysis of progress and related limitations of closed-loop control systems aboard and in China, construction difficulty of closed-loop control system was analyzed and concluded. The development directions, such as algorithm intellectualization, sensors integration, controlling parameters comprehensiveness, monitoring controlling network, were also put forward.

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