Mechanical characterization of AA5083 aluminum alloy welded using resistance spot welding for the lightweight automobile body fabrication

Resistance Spot Welding (RSW) is processed by using aluminum alloy used in the automotive industry. The difficulty of RSW parameter setting leads to inconsistent quality between welds. The important RSW parameters are the welding current, electrode force, and welding time. An additional RSW parameter, that is, the electrical resistance of the aluminum alloy, which varies depending on the thickness of the material, is considered to be a necessary parameter. The parameters applied to the RSW process, with aluminum alloy, are sensitive to exact measurement. Parameter prediction by the use of an artificial neural network (ANN) as a tool in finding the parameter optimization was investigated. The ANN was designed and tested for predictive weld quality by using the input and output data in parameters and tensile shear strength of the aluminum alloy, respectively. The results of the tensile shear strength testing and the estimated parameter optimization are applied to the RSW process. The achieved results of the tensile shear strength output were mean squared error (MSE) and accuracy equal to 0.054 and 95%, respectively. This indicates that that the application of the ANN in welding machine control is highly successful in setting the welding parameters.

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Numerical and experimental analysis of heat transfer in resistance spot welding process of aluminum alloy AA5182

The International Journal of Advanced Manufacturing Technology ◽

10.1007/s00170-020-06197-7 ◽

2020 ◽

Vol 111 (5-6) ◽

pp. 1671-1682

Author(s):

Michael Piott ◽

Alexandra Werber ◽

Leander Schleuss ◽

Nikolay Doynov ◽

Ralf Ossenbrink ◽

...

Keyword(s):

Heat Transfer ◽

Aluminum Alloy ◽

Experimental Analysis ◽

Resistance Spot Welding ◽

Spot Welding ◽

Welding Process ◽

Resistance Spot

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Seal spot welding of steel and aluminum alloy by resistance spot welding

QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY ◽

10.2207/qjjws.32.95 ◽

2014 ◽

Vol 32 (2) ◽

pp. 95-106

Author(s):

Kenji MIYAMOTO ◽

Shigeyuki NAKAGAWA ◽

Chika SUGI ◽

Tomo OGURA ◽

Akio HIROSE

Keyword(s):

Aluminum Alloy ◽

Resistance Spot Welding ◽

Spot Welding ◽

Resistance Spot

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Analyses of Electrode Tip Wear Mechanism and Restraint during Resistance Spot Welding of Aluminum Alloy

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.488-489.281 ◽

2014 ◽

Vol 488-489 ◽

pp. 281-284

Author(s):

Nan Nan Wang ◽

Ran Feng Qiu ◽

Shuai Ma ◽

Kai Huang ◽

Ning Wang

Keyword(s):

Aluminum Alloy ◽

Service Life ◽

Wear Mechanism ◽

Resistance Spot Welding ◽

Spot Welding ◽

Alloy Sheet ◽

Aluminum Alloy Sheet ◽

Resistance Spot ◽

Cover Plates

Aiming at the electrode tips wear problem during resistance spot welding of aluminum alloy, the authors analyze electrode tip wear processes during resistance spot welding of aluminum alloy, and then propose the resistance spot welding with cover plates to be used to weld aluminum alloy. Since the electrode tip do not contact with aluminum alloy sheet, the electrode tip service life can be lengthened.

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