Friction stir welding of dissimilar aluminium-magnesium joints: sheet mutual position effects

被引：41
作者：
Buffa, G. [1 ]
Baffari, D. [1 ]
Di Caro, A. [1 ]
Fratini, L. [1 ]
机构：
[1] Univ Palermo, Dept Chem Management Comp Sci & Mech Engn, Palermo, Italy
来源：
SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2015年 / 20卷 / 04期
关键词：
Friction stir welding; Aluminium alloys; Magnesium alloys; Dissimilar joints; MECHANICAL-PROPERTIES; STAINLESS-STEEL; THIN SHEETS; FEM MODEL; ALLOY; TOOL; PARAMETERS; MICROSTRUCTURE; AL;
D O I：
10.1179/1362171815Y.0000000016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Friction stir welding (FSW) is a solid state welding process used to weld difficult to be welded or unweldable materials as aluminium alloys. In the last years, other materials have been successfully tested as magnesium, titanium and nickel based alloys. Dissimilar joints can be obtained by FSW, but issues arise concerning the correct choice of the process parameters. In the paper, the results of an experimental and numerical campaign aimed to produce dissimilar AZ31-AA6016-T6 butt joints are presented. The effect of sheet mutual position and main process parameters was investigated. It was found that intermetallics are the main cause of the poor quality of the joints. Sound joints can be produced only if the magnesium alloy is in the advancing side.
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收藏
页码：271 / 279
页数：9
相关论文
共 30 条
[1]   On the FSW of AA2024-T4 and AA7075-T6 T-joints: an industrial case study [J].
Acerra, F. ;
Buffa, G. ;
Fratini, Livan ;
Troiano, G. .
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2010, 48 (9-12) :1149-1157
[2]   On microstructural phenomena occurring in friction stir welding of aluminium alloys [J].
Barcellona, A. ;
Buffa, G. ;
Fratini, L. ;
Palmeri, D. .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2006, 177 (1-3) :340-343
[3]   Friction Stir Welding of Magnesium Alloys under Different Process Parameters [J].
Bruni, C. ;
Buffa, G. ;
Fratini, L. ;
Simoncini, M. .
THERMEC 2009, PTS 1-4, 2010, 638-642 :3954-+
[4]   Friction stir welding of tailored blanks: Investigation on process feasibility [J].
Buffa, G. ;
Fratini, L. ;
Hua, J. ;
Shivpuri, R. .
CIRP ANNALS-MANUFACTURING TECHNOLOGY, 2006, 55 (01) :279-282
[5]   Design of the friction stir welding tool using the continuum based FEM model [J].
Buffa, G ;
Hua, J ;
Shivpuri, R ;
Fratini, L .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 419 (1-2) :381-388
[6]   A continuum based FEM model for friction stir welding - model development [J].
Buffa, G ;
Hua, J ;
Shivpuri, R ;
Fratini, L .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 419 (1-2) :389-396
[7]  
Buffa G., 2014, MET FORM 15 IN PRESS
[8]   Experimental and numerical analysis on FSWed magnesium alloy thin sheets obtained using "pin" and "pinless" tool [J].
Buffa, Gianluca ;
Forcellese, Archimede ;
Fratini, Livan ;
Simoncini, Michela .
MATERIAL FORMING - ESAFORM 2012, PTS 1 & 2, 2012, 504-506 :747-+
[9]   Mechanical and microstructural behaviour of 2024-7075 aluminium alloy sheets joined by friction stir welding [J].
Cavaliere, P ;
Nobile, R ;
Panella, FW ;
Squillace, A .
INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE, 2006, 46 (06) :588-594
[10]   Microstructural characterization and mechanical properties in friction stir welding of aluminum and titanium dissimilar alloys [J].
Chen, Y. C. ;
Nakata, K. .
MATERIALS & DESIGN, 2009, 30 (03) :469-474
123