scholarly journals Particle simulation of nugget formation process during steel/aluminum alloy dissimilar resistance spot welding and thickness estimation of intermetallic compounds

2021 ◽  
Vol 39 (4) ◽  
pp. 371-378
Author(s):  
Shinnosuke CHIKUCHI ◽  
Masaya SHIGETA ◽  
Hisaya KOMEN ◽  
Manabu TANAKA
Keyword(s):  
Aluminum Alloy ◽  
Intermetallic Compounds ◽  
Formation Process ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Particle Simulation ◽  
Thickness Estimation ◽  
Resistance Spot ◽  
Nugget Formation

Analyses of Nugget and Expulsion Formation Process during Resistance Spot Welding between Aluminum Alloy and Steel

2013 ◽  
Vol 859 ◽  
pp. 7-10 ◽  
Author(s):  
Nan Nan Wang ◽  
Ran Feng Qiu ◽  
Fang Fang Liu ◽  
Man Zhang ◽  
Qing Qing Xuan
Keyword(s):  
Aluminum Alloy ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Surface Condition ◽  
Softening Temperature ◽  
Growth Stages ◽  
Resistance Spot ◽  
Surface Breakdown ◽  
Nugget Growth ◽  
Nugget Formation

In this paper, nugget growth stages during resistance spot welding between aluminum alloy and steel, such as surface breakdown, asperity softening, temperature rising, molten nugget formation, nugget growth and mechanical collapse, was analyzed according to resistance dynamic variation during welding. The effects of work pieces surface condition and electrode force on the occurrence of inter-expulsion and surface expulsion was discussed during resistance spot welding.

Dissimilar metals joining of steel and aluminum alloy by resistance spot welding

2014 ◽  
Vol 32 (2) ◽  
pp. 83-94 ◽  
Author(s):  
Kenji MIYAMOTO ◽  
Shigeyuki NAKAGAWA ◽  
Chika SUGI ◽  
Kenji TSUSHIMA ◽  
Shingo IWATANI ◽  
...  
Keyword(s):  
Aluminum Alloy ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Dissimilar Metals ◽  
Resistance Spot

scholarly journals Effect of Resistance Spot Welding Parameters on AA1100 Aluminum Alloy and SGACD Zinc coated Lap Joint Properties

2015 ◽  
Vol 3 (1) ◽  
pp. 153-160 ◽  
Author(s):  
Sakchai Chantasri ◽  
Pramote Poonnayom ◽  
Jesada Kaewwichit ◽  
Waraporn Roybang ◽  
Kittipong Kimapong
Keyword(s):  
Aluminum Alloy ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Welding Parameters ◽  
Lap Joint ◽  
Resistance Spot ◽  
Joint Properties ◽  
Aa1100 Aluminum Alloy

scholarly journals Resistance Spot Welding Optimization Based on Artificial Neural Network

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Thongchai Arunchai ◽  
Kawin Sonthipermpoon ◽  
Phisut Apichayakul ◽  
Kreangsak Tamee
Keyword(s):  
Neural Network ◽  
Artificial Neural Network ◽  
Shear Strength ◽  
Aluminum Alloy ◽  
Parameter Optimization ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Tensile Shear Strength ◽  
Tensile Shear ◽  
Resistance Spot

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.

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

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

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

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

Experimental Investigation on Solid State Resistance Spot Welding

2017 ◽  
Author(s):  
Zhijun Wu ◽  
Guanlin Zhang ◽  
Bingxu Wang ◽  
Kelvin Shih
Keyword(s):  
Solid State ◽  
Resistance Spot Welding ◽  
Spot Welding ◽  
Mechanical Performance ◽  
Thin Sheet ◽  
Welding Current ◽  
Sheet Metals ◽  
Resistance Spot ◽  
Nugget Formation ◽  
State Resistance

Resistance Spot Welding (RSW) is one of the most common and dominant technologies utilized in the automotive industry to join the thin sheet metals together, and expulsion is a common phenomenon during the operation. How to ensure the high quality nugget formation and joining performance is essential to ensure the quality and integrity of structures. In this study, solid state resistance spot welding is introduced in order to prevent expulsion. The effect of welding current and welding time on the mechanical performance of the solid state RSW in terms of nugget size, tensile performance and nugget formation will be investigated experimentally by using steel sheet metals. Microstructure and micro-hardness of the nugget cross-section will be evaluated as well.

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