Influence of Shunting Current on the Metallurgical and Mechanical Behaviourof Resistance Spot-welded Joints in AA2219 Joints

Mehdi Vardanjani , Alireza Arayee , Jacek Senkara , Majid Sohrabian , Roozbeh Zarandooz

Abstract

The effects of shunting current on metallurgical and mechanical behavior of resistance spot-welded (RSW) joints in AA2219 sheets are analysed experimentally via the investigation of mechanical and metallurgical properties, while numerical results predicted by the finite element method (FEM) are used to check the thermal aspects of the phenomenon and its effect on experimental results. Welding distance is chosen as the main variable for two consecutive nuggets. Predicted temperature distribution and cooling rates of FEM are verified by checking the nuggets and heat-affected zone (HAZ) dimensions, the SEM investigation of cracks, and performing a tensile-shear test. Experimental results have been in agreement with the predicted results, since HAZ development, the presence of cracks, interfacial failure, and poor mechanical strength of shunted nugget with shorter welding distance are all predicted in the form of temperature distribution and cooling rates of shunted nugget in finite element analysis (FEA). The temperature dependence of material properties and coupling between all aspects of the solution are respected in the FEA model while experimental tests are performed according to a three-factor design of experiment (DOE) to set the levels of factors based on their significance.
Author Mehdi Vardanjani - Tehran University (Iran), Department of Mechanical Engineering
Mehdi Vardanjani,,
-
, Alireza Arayee - Tehran University (Iran), Department of Mechanical Engineering
Alireza Arayee,,
-
, Jacek Senkara ITW
Jacek Senkara,,
- The Institute of Manufacturing Processes
, Majid Sohrabian - University of Science&Technology (Iran), Department of Mechanical Engineering
Majid Sohrabian,,
-
, Roozbeh Zarandooz - Arak University of Technology (Iran), Department of Mechanical Engineering
Roozbeh Zarandooz,,
-
Journal seriesStrojniski Vestnik-Journal of Mechanical Engineering, ISSN 0039-2480
Issue year2016
Vol62
No11
Pages625-635
Publication size in sheets0.5
Keywords in Englishshunting effect; heat affected zone; tensile-shear strength; failure type; finite element method
DOIDOI:10.5545/sv-jme.2016.3682
URL http://en.sv-jme.eu/data/upload/2016/11/01_2016_3682_Vardanjani_04.pdf
Languageen angielski
File
Influence of Shunting Current on the Metallurgical and Mechanical Behaviourof Resistance.pdf 3.9 MB
Score (nominal)20
ScoreMinisterial score = 20.0, 28-11-2017, ArticleFromJournal
Ministerial score (2013-2016) = 20.0, 28-11-2017, ArticleFromJournal
Publication indicators WoS Impact Factor: 2016 = 0.914 (2) - 2016=0.87 (5)
Citation count*0
Cite
Share Share

Get link to the record
msginfo.png


* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
Back