- Çukurova Üniversitesi Mühendislik Fakültesi Dergisi
- Vol: 38 Issue: 1
- Optimization of Nd:YAG Laser Welding Factors of Cold Rolled Strenx 700 CR Steel by Taguchi Method
Optimization of Nd:YAG Laser Welding Factors of Cold Rolled Strenx 700 CR Steel by Taguchi Method
Authors : Oğuz Tuncel, Hakan Aydin
Pages : 85-92
Doi:10.21605/cukurovaumfd.1273719
View : 8 | Download : 4
Publication Date : 2023-03-30
Article Type : Research
Abstract :In this study, cold rolled Strenx 700 CR steel with a minimum yield strength of 700 MPa, which is typically used in load bearing structures to produce stronger and lighter structures, is butt welded with Nd:YAG laser welding. The effect of welding factors on tensile strength is investigated by using laser power rate (20%, 40% and 60%), pulse duration (2, 4 and 6 ms) and pulse frequency (3, 5 and 7 hz). By using Taguchi L9 orthogonal experimental design, the number of experiments, which should be 27 when full factorial, is reduced to 9 experiments. The tensile strength test results are optimized by the Taguchi method\'s larger is better control characteristic. The optimum test combination for maximum tensile strength is determined as A3B2C2 (60%-4 ms-5 hz). The effect of the welding factors on the tensile strength results is analyzed using the analysis of variance (ANOVA) method and it is found that the most effective factor is the laser power rate with 84.26%.Keywords : Nd:YAG lazer kaynağı, Strenx 700 CR çeliği, Taguchi yöntemi, Optimizasyon, ANOVA