Advanced Welding Techniques Analysis
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Abstract
Abstract
This research involved joining two 6-mm-thick 5083 aluminum alloy plates using Friction Stir Welding (FSW) and analyzing the mechanical properties of the resulting joints. Different joints were produced by varying the rotation speed from 400 rpm to 1,600 rpm in 200-rpm increments. Seven levels of welding speed were also utilized, ranging from 20 mm/min to 140 mm/min. The grain size and microhardness of the stir zone are influenced by the heat generated during welding. The grain size increased from 4.3 µm to 7.3 µm when the welding speed was 20 mm/min, while the microhardness decreased from 46 HV to 40 HV as the rotational speed increased from 400 rpm to 1600 rpm. A strong welded joint with an ultimate tensile strength of 210 MPa was produced at a rotational speed of 1200 rpm and a welding speed of 80 mm/min. The Rotation-per-Feed (RPF) ratio affects the mechanical properties of welded joints. RPF values between 12 and 18 were found to produce sound weldments with ultimate tensile strengths greater than 190 MPa. Additionally, it was observed that keeping the welding speed constant increases the ultimate tensile strength with rotational speed until it reaches an optimum value. Further increases in rotational speed led to a drop in the strength of the welded joint.
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@article{AlJarrah2026Microstructure,
title = {Microstructure and Mechanical Properties of Friction Stir Welded Aluminum 5083 Alloy Joints},
author = {Jawdat Al-Jarrah and Mohamed H. Frihat and Maen Al-Rashdan and Firas Al Qura'n and Deya A. Al Qasy},
journal = {Engineering Technology & Applied Science Research},
year = {2026},
doi = {10.48084/etasr.14474},
url = {https://doi.org/10.48084/etasr.14474}
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