1. Department of Welding Engineering, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18A Str., Gliwice 44-100, Poland (Corresponding author), e-mail: aleksander.lisiecki@polsl.pl, https://orcid.org/0000-0002-2003-7092
2. PROGRESJA, 1 Maja 35 Str., Piekary Śląskie 41-940, Poland
3. Department of Welding Engineering, Faculty of Mechanical Engineering, Silesian University of Technology, Konarskiego 18A Str., Gliwice 44-100, Poland