Experimental and numerical parametric study of resistance spot welding process of AISI 1008 steel sheets
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Mechanical Engineering Department, Bu-Ali Sina University, Hamedan, Iran
Mechanic Group, Bu-Ali Sina University, Hamedan, Iran
Mechanical Engineering Department, Sahand University of technology, Sahand New Town, Tabriz, Iran
Submission date: 2017-04-15
Acceptance date: 2019-04-01
Online publication date: 2019-10-15
Publication date: 2019-10-15
Journal of Theoretical and Applied Mechanics 2019;57(4):807–820
In the present research, a parametric study in Resistance Spot Welding (RSW) of thin AISI 1008 steel sheets is investigated via FEM. All the time steps through the RSW process, including squeeze time, welding time, holding time and cooling time are taken into account. First, the effects of various parameters such as electrical current, welding time and electrode tip diameter are investigated in the nugget geometry. Then, a time history stress diagram and residual stresses are obtained in RSW weldment. FEM results are validated very well by some experiments which were performed in two parts of nugget geometry and residual stresses.
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