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Article type: Research Article
Authors: Wu, Dia; b | Chen, Jieshia; b; * | Liu, Hongbinga; b; * | Zhang, Peileia; b | Yu, Zhishuia; b
Affiliations: [a] School of Materials Engineering, Shanghai University of Engineering Science, Shanghai, China | [b] Shanghai Collaborative Innovation Center of Laser of Manufacturing Technology, Shanghai, China
Correspondence: [*] Corresponding author. Jieshi Chen and Hongbing Liu, E-mail: [email protected]; (J. Chen), E-mail: [email protected] (H. Liu).
Abstract: The geometrical appearance of weld bead is critically important in terms of directly determining the quality and reliability of T-joints laser stake-welding process. In this regard, this paper puts forward an innovative hybrid modeling scheme integrating the adaptive neural fuzzy interface system (ANFIS) with three-dimensional numerical simulation to accurately characterize the weld bead appearance. First, an ANFIS-based model is developed to identify the weld characteristics by experimental observation and provide the key parameters of hybrid heat source involved in the weld numerical simulation. Second, the weld bead geometry, i.e., weld penetration depth, surface weld width and interface weld width are all computed utilizing the numerical simulation method. The proposed numerical model exhibits good agreements with the experimental results in regard to forecasting the weld characteristics. In the end, the role of various welding conditions on the formation mechanism and T-joints bead profiles of the laser stake-welding are elucidated through the simulation model. The simulated results would help provide a much better understanding of the critical factors which does affect the weld appearance, and lay a solid foundation for optimizing of welding parameters and obtaining a high-quality weld.
Keywords: Laser stake-welding, T-joints, ANFIS model, numerical simulation, weld appearance
DOI: 10.3233/JIFS-190542
Journal: Journal of Intelligent & Fuzzy Systems, vol. 37, no. 6, pp. 8589-8601, 2019
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