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FAN Ding, LI Jianjun, SHI Yu, GAO Yuan. Simulation of Al-MIG weld pool width control by nine-point controller[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2007, (5): 1-4.
Citation: FAN Ding, LI Jianjun, SHI Yu, GAO Yuan. Simulation of Al-MIG weld pool width control by nine-point controller[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2007, (5): 1-4.
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Simulation of Al-MIG weld pool width control by nine-point controller

  • 1.

    Key Laboratory of Advanced Processing Technology for Non-ferrous Materials, The Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China;State Key Laboratory of Gansu Advanced New Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China

  • 2.

    Key Laboratory of Advanced Processing Technology for Non-ferrous Materials, The Ministry of Education, Lanzhou University of Technology, Lanzhou 730050, China

  • 3.

    State Key Laboratory of Gansu Advanced New Non-ferrous Metal Materials, Lanzhou University of Technology, Lanzhou 730050, China

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  • Received Date: June 06, 2006
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    • Abstract
  • Considering the characteristics of aluminum alloy MIG welding process, nine-point controller was developed to control weld pool width.The structure and the principle of nine-point controller were analyzed.Based on the mathematic model of step response between pulse current and weld pool width, the simulations on three controlles of PID, fuzzy and nine-point controller used to control aluminum alloy MIG weld pool width were studied.The simulation results show that nine-point controller not only has the best stability and robust than PID and fuzzy controller, but also assure the control accuracy and provides the theoretical basis to realize the intelligent control for aluminum alloy pulsed MIG welding process.
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