Process mechanics in Friction Stir Extrusion of magnesium alloys chips through experiments and numerical simulation

被引：58
|
作者：
Baffari, Dario [1 ]
Buffa, Gianluca [1 ]
Campanella, Davide [1 ]
Fratini, Livan [1 ]
Reynolds, Anthony P. [2 ]
机构：
[1] Univ Palermo, Dept Ind & Digital Innovat, Viale Sci, I-90128 Palermo, Italy
[2] Univ South Carolina, 300 Main St, Columbia, SC 29208 USA
来源：
JOURNAL OF MANUFACTURING PROCESSES | 2017年 / 29卷
关键词：
Friction Stir Extrusion; Recycling; FEM; Magnesium alloys; ALUMINUM; SCRAP; MICROSTRUCTURE; MG;
D O I：
10.1016/j.jmapro.2017.07.010
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Friction Stir Extrusion (FSE) is a novel process designed to directly recycle machining chips. An experimental campaign was carried out on AZ31 milling chips using variations in extrusion ratio, force and tool rotation rate. The process mechanics were studied and correlated to the material flow, which was elucidated through use of a copper marker. A 3D, Lagrangian, thermo-mechanically coupled dedicated numerical model was set up and validated through temperature measurements. The combination of experimental and numerical results permitted to reconstruct the complex 3D material flow induced by tool rotation and plunge into the extrusion billet chamber. (C) 2017 The Society of Manufacturing Engineers. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：41 / 49
页数：9
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