DocumentCode :
692244
Title :
Investigations into analysis and modeling of resistance spot welding process
Author :
Sankar, S. ; Govindan, Priya
Author_Institution :
Gov. Coll. of Eng., Kannur, India
fYear :
2013
fDate :
27-28 Sept. 2013
Firstpage :
1
Lastpage :
7
Abstract :
The resistance spot welding involves electric, thermal and mechanical phenomenon. In this paper, the aspects of process analysis and modeling are discussed. The mechanical properties, electrical properties and thermal properties of the boundary elements vary with the contact state, and can have various values from the worksheets and electrodes. The nugget dimensions and its development process predicted by numerical modeling match well with the experimental results. In the process, the temperature, electrode pressure, stress and strains are difficult to predict. It is observed that during the welding cycles there is compressive stress in the contact area of weld surfaces, which is supportive for good metallurgical structure, forming a thick weld nugget. Further, the high contact stress at the edge of the electrode will eventually lead to permanent deformation in the surrounding area during cyclic loading. The methods presented in this paper provide an estimate of the quality, form and contour of the weld nuggets with variations in the processing conditions.
Keywords :
internal stresses; numerical analysis; pressure; spot welding; temperature; compressive stress; cyclic loading; electrical properties; electrode pressure; mechanical properties; metallurgical structure; nugget dimensions; numerical modeling; process analysis; process modeling; processing conditions; resistance spot welding process; temperature; thermal properties; weld nugget; welding cycle; Analysis; Finite element method and Coupled field analysis; Modeling; Resistance spot welding;
fLanguage :
English
Publisher :
iet
Conference_Titel :
Research & Technology in the Coming Decades (CRT 2013), National Conference on Challenges in
Conference_Location :
Ujire
Electronic_ISBN :
978-1-84919-868-4
Type :
conf
DOI :
10.1049/cp.2013.2547
Filename :
6851594
Link To Document :
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