Wire arc additive manufacturing of ER-4043 aluminum alloy: evaluation of bead profile, microstructure, and wear behavior

被引:0
作者
Kashif Hasan Kazmi
Alok Kumar Das
Sumit K. Sharma
Amitava Mandal
Amarish Kumar Shukla
机构
[1] BIT Sindri,Department of Production and Industrial Engineering
[2] Indian Institute of Technology (ISM),Department of Mechanical Engineering
[3] BIT Sindri,Department of Metallurgical Engineering
[4] Indian Maritime University Kolkata Campus,undefined
来源
Welding in the World | 2023年 / 67卷
关键词
Wire arc additive manufacturing; Robotics GMAW; Bead geometry; Microstructure; Wear behavior;
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学科分类号
摘要
Wire arc additive manufacturing technique has a major transformation in metal manufacturing as a result of recent technological advancements. The present study is aimed at the deposition of the defects-free bead of ER-4043 aluminum alloy (aluminum–silicon alloy) by using wire arc additive manufacturing (WAAM) with robotic gas metal arc welding (GMAW) with varying current and tool speeds. The arc served as the heat source, and a 1.2-mm diameter of ER-4043 aluminum alloy wire was used as the raw material during bead deposition. The cross-section profile of the single bead in WAAM is essential for determining surface quality and dimensional accuracy. The cross-section profile of each bead was measured using a coordinate measuring machine (CMM) by taking multiple points on the surface of each bead. Points taken from each bead are fitted with Gaussian, logistic, parabola, and sine functions using the least square regression analysis to determine the geometry of the single bead. Moreover, the microstructure and mechanical properties of the deposited bead were investigated on selected parameters with a constant tool speed of 10 mm/s, varying heat input in terms of current from 153 A, 202 A, and 246 A of specimens A, B, and C, respectively. The detailed study shows the understanding of the effect of variation of current on the surface morphology, microstructure, hardness, and wear behavior of deposited beads.
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页码:2187 / 2200
页数:13
相关论文
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