Evaluation of toptig technology applied to robotic orbital welding of 304L pipes

Silva, Régis Henrique Gonçalves e; Schwedersky, Mateus Barancelli; Rosa, Álisson Fernandes da

doi:10.1016/j.ijpvp.2020.104229

Cited by 11 publications

(1 citation statement)

References 13 publications

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“…Precise control of the torch trajectory is vital to ensure adequate heat input to the sidewall, which plays a crucial role in preventing the occurrence of fusion defects along the sidewall [3]. In this regard, fully automatic welding [4][5][6][7] and seam tracking technology [8][9][10] were proposed as an effective scheme to resolve this problem.…”

Section: Introductionmentioning

confidence: 99%

Implementation of a two-stage algorithm for NG-GMAW seam tracking and oscillation width adaptation in pipeline welding

Liu,

Xue,

Zhou

et al. 2023

Science and Technology of Welding and Joining

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Seam tracking and oscillation width adaptation could effectively reduce the sidewall fusion defects in automatic narrow-gap gas metal arc welding (NG-GMAW). This study proposes a twostage algorithm to realise seam tracking and oscillation width adaptation in NG-GMAW pipeline welding. The first stage involves using the principal component analysis (PCA) eigenvectors to adjust the oscillating centre, enabling seam tracking and oscillation width adaptation for the hot and fill layer. In the second stage, dataset was prepared based on the tracking data from the first stage, which can guide the welding torch trajectory for the cap layer. Experimental results show that the proposed scheme achieves seam tracking and oscillation width adaptation with an accuracy of 0.1 mm.

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