Effects of Weld Heat Input on Mechanical Characteristics of Low Carbon Sheet Steels
Küçük Resim Yok
Tarih
2024
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Kauno Technologijos Universitetas
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
This study focuses on examining the variation in mechanical characteristics of low-carbon sheet steels when they are subjected to heat input from Tungsten Inert Gas (TIG) welding. The weld heat input parameters, such as welding speed and current, were controlled through the TIG welding process. A finite element analysis was performed to evaluate the couple field thermomechanical effects of the weld heat line, using the Gauss heat flux approach for thermal heat variation across the weld heat-affected zone. The numerical study yielded results for weld heat-affected deflection, residual stress, and modal analysis through the finite element model. It was found that the ductility decreased and hardness increased in the fusion zone, as a function of weld current and speed. The residual stresses and their zone of influence, as determined by weld line parameters, were found to be key factors affecting deflection and natural frequencies in structural aspects of low carbon sheet steels. © 2024 Kauno Technologijos Universitetas. All rights reserved.
Açıklama
Anahtar Kelimeler
finite element analysis, Gauss heat flux approach, TIG welding, welding heat input
Kaynak
Mechanika
WoS Q Değeri
Scopus Q Değeri
Q4
Cilt
30
Sayı
2
