Akademik Veri Yönetim Sistemi
High Temperature Materials and Processes, cilt.43, ss.1-17, 2024 (SCI-Expanded)
The present study aims to explore experimental
investigations and numerical simulations for temperature
distributions at heat-affected zones within SA 387-Gr.11-Cl.2
steel during the submerged arc welding (SAW) process.
Experimental endeavors entailed welding steel plates under
controlled conditions, precisely measuring temperatures at
key locations by thermocouples. A special programbased on
3D Goldak’s double ellipsoidal model was developed in
ANSYS Parametric Design Language for moving heat source
calculations in the finite-element analysis (FEA). For welding
an 8mm thick plate with one pass, the suitable parameters
were found to be 600 A current, 31 V voltage, and 10mm·s−1
welding speed. The experimental cooling periods were
found to be slower than predicted by FEA. When temperature
distributions were compared between experimental
and FEA results, an average variation of 1.88% at peak
temperatures and 11.8% at completion time was observed.
The results showed the temperature distribution at various
time steps, illustrating the transient nature of the
welding process. The results highlight the capacity of
the FEA model to predict temperature profiles during
SAW accurately, presenting a potent tool for optimizing
welding parameters without extensive trial and error.
Keywords: submerged arc welding, SA 387-Gr.11-Cl.2, FEA,
APDL, temperature distribution, Goldak’s double ellipsoidal
model, welding