ISBN: 978-981-18-5852-9 DOI: 10.18178/wcse.2022.04.126
Research on Compensation Control Technology Based on Arc Length in Tube Sheet Welding
Abstract— During the Gas Tungsten Arc Welding(GTAW) process, the arc length will change along with
welding thermal deformation, uneven surface of the work-piece and wear of the tungsten electrode.
Considering the large fluctuation of arc length in all positions of circular seam welding under multi-variable
coupling, the method of real-time arc length fuzzy control in circular seam welding is studied. In this paper,
an isolated circuit of arc length collection is designed, and a real-time arc length tracking algorithm based on
DC pulse TIG welding is proposed to implement the calculation of arc voltage in the pulse peak phase and
the adjustment of arc length in the pulse base phase. Experiments show that the arc length adaptive method
based on the fuzzy control algorithm can significantly improve the arc length stability, and obviously
improve the welding quality and stability.
Index Terms— GTAW, Arc Length, Tube-Sheet Welding.
Jianhua Ma
Key Laboratory of Metallurgical Equipment and Control Technology, Wuhan University of Science and Technology, China
Yalun Yang
Key Laboratory of Metallurgical Equipment and Control Technology, Wuhan University of Science and Technology, China
Xingdong Wang
Key Laboratory of Metallurgical Equipment and Control Technology, Wuhan University of Science and Technology, China
Jianyi Kong
Key Laboratory of Metallurgical Equipment and Control Technology, Wuhan University of Science and Technology, China
Cite: Jianhua Ma, Yalun Yang, Xingdong Wang, Jianyi Kong, " Research on Compensation Control Technology Based on Arc Length in Tube Sheet Welding, " WCSE 2022 Spring Event: 2022 9th International Conference on Industrial Engineering and Applications, pp. 1082-1088, Sanya, China, April 15-18, 2022.