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2013 | 20 | 2 |

Tytuł artykułu

An analysis of the welding-induced deformation of ship panels using a statistical tool

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This paper proposes a practical way to predict the welding-induced deformation of 5-mm-thick steel ship panels prefabricated in a Polish shipyard, developed by means of a number of experiments and a body of data collected on the butt welding line using the submerged arc welding technique. The program of the experiments was so designed as to test different welding energy conditions as well as pressure values generated by the devices used during the welding. Subsequently, different welding trials were carefully carried out and data collected to find the most important parameters which contribute to welding deformation. The data obtained were analysed using the Design-Expert® statistical software, and consideration was given to the data arrangement method that would allow for the most appropriate description of the welding deformation. As a result of the foregoing efforts, an approach to predicting the welding deformation, based on a numerical equation including the main welding parameters, was developed. The accuracy of the equation was partially evaluated and the results turned out to be satisfactory, as the actual and the predicted values were comparable. Another important advantage achieved was the arrangement of data used to compute the welding deformation

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  • Faculty of Marine Technology and Transport, West Pomeranian University of Technology in Szczecin, Al.Piastow 17, 70-310 Szczecin, Poland
  • Faculty of Marine Technology and Transport, West Pomeranian University of Technology in Szczecin, Al.Piastow 17, 70-310 Szczecin, Poland


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  • 2. Birk-Sřrensen M.: Simulation of welding distortions in ship section. Industrial PhD Thesis. Technical University of Denmark. 1999.
  • 3. Deng D., Murakawa H., Ueda Y.: Theoretical Prediction of Welding Distortion Considering Positioning and the Gap between Parts. 2002. The Proceedings of the Twelfth International offshore and polar engineering conference. Accessed 17 November 2011,
  • 4. Kou S.: Welding metallurgy. 2nd ed. USA: John Wiley & Sons, Inc. 2003.
  • 5. Sena Batista H.: Analysis and prediction of welding deformations of ship panels in prefabrication process. Master Thesis for the double degree: “Advanced Master in Naval Architecture” conferred by University of Liege “Master of Sciences in Applied Mechanics, specialization in Hydrodynamics, Energetics and Propulsion” conferred by Ecole Centrale de Nantes, work developed at West Pomeranian University of Technology, Szczecin in the framework of the “EMSHIP” Erasmus Mundus Master Course in “Integrated Advanced Ship Design”. Ref. 159652-1-2009-1-BE-ERA MUNDUS-EMMC. 2011.
  • 6. Sukovoy O., Kuo C.: a risk-based method for minimizing welding distortion in steel ship production. Engineering for the Maritime Environment, 217 (3), 123-131. 2003.
  • 7. Törnblom S.: Undermatching Butt Welds in High Strength Steel. Master Thesis. Luleĺ University of Technology. 2007.
  • 8. Tsai C. L., Park S. C., Cheng W. T.: Welding Distortion of a Thin-Plate Panel Structure [online]. American Welding Society. 1999. Accessed 12 December 2011

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