Ultrasonic thermometry for friction stir spot welding

被引：13

作者：

Dharmaraj, Kathryn J. ^{[1
]}

Cox, Chase D. ^{[1
]}

Strauss, Alvin M. ^{[1
]}

Cook, George E. ^{[1
]}

机构：

[1] Vanderbilt Univ, Welding Automat Lab, Nashville, TN 37235 USA

来源：

MEASUREMENT | 2014年 / 49卷

关键词：

Ultrasonic thermometry; Time of flight (TOF); Friction stir spot welding (FSSW); ALUMINUM; MICROSTRUCTURE; PARAMETERS; TOOL;

D O I：

10.1016/j.measurement.2013.11.054

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This investigation presents the feasibility of ultrasonic temperature measurement of friction stir spot welding (FSSW). FSSW is an automated solid state joining process. Thermal profiles of the weld zone are crucial for implementing informed process changes to improve weld quality. Ultrasonics present a novel and non-invasive method of monitoring changes in temperature. Ultrasonic time of flight (TOF) measurement method is used to calculate the temperature of Al 6061 as it is heated. Comparisons of the ultrasonic temperature calculations with thermocouple readings confirm the accuracy of the ultrasonic system. The ultrasonic signal is then recorded during spot welding and processed. The results show that ultrasonic technology is a feasible method of monitoring the heating and cooling profiles of the weld zone during welding. The paper also discusses challenges presented by the system as well as recommendations for its future implementation in the friction stir welding manufacturing industry. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：226 / 235

页数：10

共 22 条

[1] Design and Optimization of Friction Stir Welding Tool [J].

Aissani, Mouloud ;

Gachi, Saliha ;

Boubenider, Fouad ;

Benkedda, Younes .

MATERIALS AND MANUFACTURING PROCESSES, 2010, 25 (11) :1199-1205

[2] Effect of welding parameters on mechanical and micro structural properties of AA6056 joints produced by Friction Stir Welding [J].

Cavaliere, P. ;

Campanile, G. ;

Panella, F. ;

Squillace, A. .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2006, 180 (1-3) :263-270

[3] Heat transfer in friction stir welding - Experimental and numerical studies [J].

Chao, YJ ;

Qi, X ;

Tang, W .

JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME, 2003, 125 (01) :138-145

[4] Robotic friction stir welding [J].

Cook, GE ;

Crawford, R ;

Clark, DE ;

Strauss, AM .

INDUSTRIAL ROBOT-THE INTERNATIONAL JOURNAL OF ROBOTICS RESEARCH AND APPLICATION, 2004, 31 (01) :55-63

[5]

Cox C.D., J AUTOMOBIL IN PRESS

[6]

Dawes C., 1995, TWI Bulletin, V6, P124

[7] Toward Automation of Friction Stir Welding Through Temperature Measurement and Closed-Loop Control [J].

Fehrenbacher, Axel ;

Duffie, Neil A. ;

Ferrier, Nicola J. ;

Pfefferkorn, Frank E. ;

Zinn, Michael R. .

JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING-TRANSACTIONS OF THE ASME, 2011, 133 (05)

[8] Strain rates and grain growth in Al 5754 and Al 6061 friction stir spot welds [J].

Gerlich, A. ;

Yamamoto, M. ;

North, T. H. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2007, 38A (06) :1291-1302

[9] Experimental study on temperature distributions within the workpiece during friction stir welding of aluminum alloys [J].

Hwang, Yeong-Maw ;

Kang, Zong-Wei ;

Chiou, Yuang-Cherng ;

Hsu, Hung-Hsiou .

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE, 2008, 48 (7-8) :778-787

[10] Influence of tool geometry in friction stir welding [J].

Kumar, K. ;

Kailas, Satish V. ;

Srivatsan, T. S. .

MATERIALS AND MANUFACTURING PROCESSES, 2008, 23 (02) :189-195

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