Investigation of the influence of the welding speed and current on the parameters of the adaptive function

Nasiri, M. B. (Speaker)

Activity: Talk or presentationTalk at conference or symposiumScience to science

Description

The adaptive function developed by authors allows direct correlation between welding circumstances and temperature distribution using limited experimental data including weld pool dimensions and temperature at some arbitrary points. This paper intends to investigate the effects of welding speed and welding current on the parameters of the adaptive function. GTAW with various welding speeds and various welding currents was applied on duplex stainless steel plates. According to the experimental data, the parameters of the adaptive function were expressed as a function of welding speed and weld pool dimensions. To show the effectiveness of the new method, Rosenthal model and FEM were employed to simulate the conducted welding and the accuracy of the predicted result rather than the measured temperature were estimated by relative error. The results show that the adaptive function method is more accurate than the FEM and Rosenthal approach in all studied cases.
Period25 Sep 2018
Held atThe 12th International Seminar Numerical Analysis of Weldability
Event typeConference
LocationGraz, Austria
Degree of RecognitionInternational

Keywords

  • Welding Simulation
  • Analytical Solution
  • Heat Flow
  • Computational Mechanics
  • Materials Science(all)
  • Applied Mathematics