چکیده مقاله
In this study, the effect of welding speed on the microhardness, microstructure, and weld bead geometry in the gas metal arc welding GMAW process was comprehensively investigated Experiments were conducted using five different welding speeds under controlled conditions Parameters such as weld bead height and width, weld area, and microhardness in horizontal and vertical directions were measured to evaluate the results Furthermore, the microstructure of various weld zones, including the weld bead, heat affected zone HAZ , and base metal, was analyzed The findings revealed that increasing the welding speed reduced the weld bead width and microhardness, while the hardness in the HAZ was higher due to grain refinement Additionally, metallographic analyses indicated that the predominant structures in the weld zone were polygonal ferrite and Widmanstätten ferrite, whereas the HAZ consisted of finer and harder grains This study highlights the significant impact of welding speed on the mechanical and metallurgical properties of the weld and emphasizes its role in enhancing industrial welding performance
کلیدواژهها
نویسندگان
Abolfazl Foorginejad
Assistant Professor, Department of Mechanical Engineering, Birjand University of Technology, Birjand, Iran
Sayyed Mohammad Emam
Associate Professor, Department of Mechanical Engineering, Faculty of Engineering, Ardakan University, P O Box ۱۸۴, Ardakan, Iran
Mahdi Borhani
MsC Student, Department of Mechanical Engineering, Birjand University of Technology, Birjand, Iran,
Hossein Afshari
PhD Student, Department of Mechanical Engineering, University of Birjand, Birjand, Iran,
شیوه ارجاع
Foorginejad, Abolfazl and Emam, Sayyed Mohammad and Borhani, Mahdi and Afshari, Hossein,1403,Effect of Welding Speed on Microhardness, Microstructure, and Bead Geometry in GMAW Process,7th International Conference on Welding and Non Destructive Testing & 25th National Conference on Welding & Inspection & 14th National Conference on NDT & 3nd National Conference on Additive Manufacturing,Tehran
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