INFLUENCE OF THE TOOL ROTATIONAL SPEED ON THE MICROSTRUCTURE AND JOINT STRENGTH OF FRICTION-STIR SPOT-WELDED PURE COPPER

被引：3
作者：
Dinaharan, Isaac [1 ]
Akinlabi, Esther T. [1 ]
机构：
[1] Univ Johannesburg, Dept Mech Engn Sci, Auckland Pk,Kingsway Campus, ZA-2006 Johannesburg, South Africa
来源：
MATERIALI IN TEHNOLOGIJE | 2016年 / 50卷 / 05期
关键词：
copper; friction-stir spot welding; microstructure; shear load; PARAMETERS;
D O I：
10.17222/mit.2015.301
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Copper is very difficult to be spot welded with conventional fusion-welding techniques due to a high thermal diffusivity. Friction-stir spot welding (FSSW) is a novel solid-state welding process, suitable and effective for spot welding copper. Commercially pure copper sheets of 3 mm thickness were spot welded using an industrial friction-stir welding machine. The spot welds were made by varying the tool rotational speed at three levels. The spot welds were characterized using light microscopy. The shear-fracture load was evaluated using a computerized tensile-testing machine. The results revealed that the tool rotational speed remarkably influenced the microstructure, the shear-fracture load and the mode of fracture.
引用
收藏
页码：791 / 796
页数：6
相关论文
共 17 条
[1]   Effect of friction stir spot weld parameters on Cu/CuZn30 bimetal joints [J].
Barlas, Zafer .
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY, 2015, 80 (1-4) :161-170
[2]   Intermetallic compounds in Al 6016/IF-steel friction stir spot welds [J].
Bozzi, S. ;
Helbert-Etter, A. L. ;
Baudin, T. ;
Criqui, B. ;
Kerbiguet, J. G. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2010, 527 (16-17) :4505-4509
[3]   On the influence of tool path in friction stir spot welding of aluminum alloys [J].
Buffa, G. ;
Fratini, L. ;
Piacentini, M. .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2008, 208 (1-3) :309-317
[4]   Metallurgical analysis of Al/Cu friction stir spot welding [J].
Heideman, R. ;
Johnson, C. ;
Kou, S. .
SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2010, 15 (07) :597-604
[5]   Friction stir spot welding of single-crystal austenitic stainless steel [J].
Jeon, J. ;
Mironov, S. ;
Sato, Y. S. ;
Kokawa, H. ;
Park, S. H. C. ;
Hirano, S. .
ACTA MATERIALIA, 2011, 59 (20) :7439-7449
[6]   Resistance and friction stir spot welding of DP600: a comparative study [J].
Khan, M. I. ;
Kuntz, M. L. ;
Su, P. ;
Gerlich, A. ;
North, T. ;
Zhou, Y. .
SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2007, 12 (02) :175-182
[7]   Effect of shoulder cavity and welding parameters on friction stir welding of thin copper sheets [J].
Leal, R. M. ;
Sakharova, N. ;
Vilaca, P. ;
Rodrigues, D. M. ;
Loureiro, A. .
SCIENCE AND TECHNOLOGY OF WELDING AND JOINING, 2011, 16 (02) :146-152
[8]   The joint properties of copper by friction stir welding [J].
Lee, WB ;
Jung, SB .
MATERIALS LETTERS, 2004, 58 (06) :1041-1046
[9]   Microstructural and Mechanical Observations of Galvanized TRIP Steel after Friction Stir Spot Welding [J].
Mazzaferro, C. C. P. ;
Rosendo, T. S. ;
Tier, M. A. D. ;
Mazzaferro, J. A. E. ;
Dos Santos, J. F. ;
Strohaecker, T. R. .
MATERIALS AND MANUFACTURING PROCESSES, 2015, 30 (09) :1090-1103
[10]   Friction stir welding and processing [J].
Mishra, RS ;
Ma, ZY .
MATERIALS SCIENCE & ENGINEERING R-REPORTS, 2005, 50 (1-2) :1-78
12