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Three-dimensional vision applications in GTAW process modeling and control

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Abstract

In gas tungsten arc welding (GTAW), the weld pool is the major source of information that can be used to assure the production of the desired weld penetration—the most critical factor determining the weld integrity. To meet this challenge, various sensing technologies, modeling methods, and control strategies have been studied, and artificial intelligence technologies were applied to improve system intelligence. The GTAW process analysis is given first. Then, a short introduction on weld pool sensing technologies is presented, where three-dimensional (3D) vision sensing is a very active orientation. Furthermore, weld pool description model and characteristic parameter model are also discussed, where intelligent algorithms were used generally. Besides, dynamic modeling and penetration control strategies, especially intelligent control strategies are presented. At last, the discussion about development of the GTAW penetration control product is analyzed briefly.

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Authors and Affiliations

  1. Key Laboratory of Advanced Control and Optimization for Chemical Processes, Ministry of Education, East China University of Science and Technology, 200237, Shanghai, People’s Republic of China

    XueWu Wang

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  1. XueWu Wang
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Correspondence to XueWu Wang.

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Wang, X. Three-dimensional vision applications in GTAW process modeling and control. Int J Adv Manuf Technol 80, 1601–1611 (2015). https://doi.org/10.1007/s00170-015-7063-9

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  • DOI: https://doi.org/10.1007/s00170-015-7063-9

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