Process Optimization of Double-Pulsed GMAW Using the Taguchi Method for Enhanced Tensile Strength
Makaleler > Tam Makale · 2025
Yazarlar: Emre YENİYIL, Hasan YILDIZ, Aydın ÜLKER, Devrim ERBAYTAN, Sami SAYER
Results in Engineering,, ESCI İndekslerine Giren Dergi, Uluslararası, Emerging Sources Citation Index (ESCI), 2025, cilt , ss 1-11
DOI: 106696
Özet
<p>Double pulsed gas metal arc welding (DP-GMAW) creates a homogeneous molten pool with stable metal transfer</p><p>characteristics. This process results in lower heat input while enhancing joint quality. To ensure the desired weld</p><p>quality, process parameters must be optimized in accordance with the specific requirements of the application. In</p><p>this study, low-carbon steel plates were joined using the DP-GMAW method. The optimization was performed</p><p>using the Taguchi method, one of the design of experiments (DoE) techniques. Wire feed speed, pulse current,</p><p>and frequency were selected as input variables. Tensile tests were carried out to evaluate mechanical performance</p><p>and to investigate the influence of excessive weld metal. Accordingly, specimens were grouped as smooth</p><p>and reinforcement specimens and tested under different parameter combinations. The contribution of each</p><p>parameter was evaluated through analysis of variance (ANOVA), and the model’s predictions were validated by</p><p>experimental tests. According to the results, the optimum parameters for smooth specimens were a wire feed</p><p>speed of 6.0 m/min, a pulse current of -3 %, and a frequency of 3 Hz, while those for reinforcement specimens</p><p>were 6.8 m/min, -3 %, and 1 Hz. ANOVA results indicated that wire feed speed had the most significant effect on</p><p>tensile strength among the parameters evaluated. The study demonstrated that the optimization of DP-GMAW</p><p>process parameters using the Taguchi method led to reduced time and resource consumption and improved</p><p>process efficiency</p>