Resistance spot welding is a type of electric resistance welding used to weld various sheet metal products through a process in which contacting metal surface points are joined by the heat obtained from resistance to electric current. The intense heat generated and rapid cooling of the joint produce residual stresses and distortion in the joint. The prediction of residual stresses before carrying actual welding is important for the prevention of these stresses. In this study thermo elasto plastic analyses are carried out to simulate resistance welding under various conditions. Mild steel sheets of equal and unequal thicknesses and aluminium sheets of equal and unequal thicknesses have been spot welded with the application of pressure which is determined by measuring force on the joint with a load cell. The size and shape of the nugget for different spot welding conditions is ascertained. The residual stresses under different spot welding conditions are compared. M. Lakshmi Sramika | I. Shanmukha | K. Kishore Chandra Mouli | K. Harish Kumar | M. Vamsi Kiran | N. V. S. J. K. Naidu "Numerical Evaluation of Temperature Distribution and Stresses Developed in Resistance Spot Welding" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-5 | Issue-5 , August 2021, URL: https://www.ijtsrd.com/papers/ijtsrd43855.pdf Paper URL: https://www.ijtsrd.com/engineering/mechanical-engineering/43855/numerical-evaluation-of-temperature-distribution-and-stresses-developed-in-resistance-spot-welding/m-lakshmi-sramika
International Journal of Trend in Scientific Research and Development (IJTSRD)
Volume 5 Issue 5, July-August 2021 Available Online: www.ijtsrd.com e-ISSN: 2456 – 6470
@ IJTSRD | Unique Paper ID – IJTSRD43855 | Volume – 5 | Issue – 5 | Jul-Aug 2021
Page 594
Numerical Evaluation of Temperature Distribution and
Stresses Developed in Resistance Spot Welding
M. Lakshmi Sramika, I. Shanmukha, K. Kishore Chandra Mouli,
K. Harish Kumar, M. Vamsi Kiran, N. V. S. J. K. Naidu
Department of Mechanical Engineering, Avanthi Institute of Engineering and Technology,
Cherukupally, Bhogapuram Mandal, Andhra Pradesh, India
ABSTRACT
Resistance spot welding is a type of electric resistance welding used
to weld various sheet metal products through a process in which
contacting metal surface points are joined by the heat obtained from
resistance to electric current. The intense heat generated and rapid
cooling of the joint produce residual stresses and distortion in the
joint. The prediction of residual stresses before carrying actual
welding is important for the prevention of these stresses. In this study
thermo-elasto-plastic analyses are carried out to simulate resistance
welding under various conditions. Mild steel sheets of equal and
unequal thicknesses and aluminium sheets of equal and unequal
thicknesses have been spot welded with the application of pressure
which is determined by measuring force on the joint with a load cell.
The size and shape of the nugget for different spot welding
conditions is ascertained. The residual stresses under different spot
welding conditions are compared.
KEYWORDS: Resistance spot welding ,residual stresses , mild steel ,
aluminium, thermo- elasto-plastic analyses
How to cite this paper: M. Lakshmi
Sramika | I. Shanmukha | K. Kishore
Chandra Mouli | K. Harish Kumar | M.
Vamsi Kiran | N. V. S. J. K. Naidu
"Numerical Evaluation of Temperature
Distribution
and
Stresses Developed
in Resistance Spot
Welding" Published
in
Inter