Deformation Prediction Algorithm for Smart Manufacturing of Large Welded Structures

Woo-Jae Seong, Jae-Seok Yoo, Kwang-Hee Yun
2020 Journal of Welding and Joining  
In this study, an algorithm for predicting welding deformation in the fabrication of large structures was proposed. The major factors affecting the structural deformation were identified and the relationship between them was derived through a bead-on-plate welding experiment. Constraint and offset were introduced to flexibly adapt to environmental changes as well as to reflect actual structures. The amount of angular distortion and its trend during multipass welding can be estimated from the
more » ... timated from the measured deformation and the deposition data from the smart welding machine. Also, the final deformation is diagnosed, and a new welding sequence can be presented if the estimation exceeds the reference value. The identified factors and proposed method will be a first step toward smart manufacturing.
doi:10.5781/jwj.2020.38.1.11 fatcat:ukbkfqds25a6nm4smts3ktgfwa