Numerical and Experimental Investigation of Current and Electrode Force Effects on Expulsion in Resistance Spot Welding of Galvanized and Non-Galvanized Low-Carbon Steel Sheets

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

Valaee Tale M.; MAZAHERI Y.; SHEIKHI M.; MALEK GHAINI F.; Yousefifar Gh.R.

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: Modares Mechanical Engineering Year:2019 | Volume:19 | Issue:7 Page(s): 1797-1804

Download Full-Text

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Verion

View:

426

Download:

Cites:

Information Journal Paper

Title

Numerical and Experimental Investigation of Current and Electrode Force Effects on Expulsion in Resistance Spot Welding of Galvanized and Non-Galvanized Low-Carbon Steel Sheets

Author(s)

Keywords

Resistance Spot WeldingQ2

Galvanized SteelQ1

Welding CurrentQ2

ExpulsionQ1

Numerical ModelQ2

Abstract

During the process of Resistance Spot Welding (RSW), some of the molten metal comes out of the interface of the two sheets, which causes contamination on the body of the cars. This disrupts the staining process and reduces the safety of the workshop. In this study, by numerical and experimental investigation of the effect of Welding Current and electrode forces on Expulsion in RSW of galvanized and non-Galvanized Steel sheets, the prediction of Expulsion for both sheets was performed. Experimental results showed that with increasing the Welding Current, nugget diameter and weld strength increased continuously until Expulsion occurrence. The resultant nugget in both types of sheets had almost similar diameter at the similar Welding Current; however, in the galvanized sheet, Expulsion occurred at a larger nugget diameter. Increasing the electrode force before the occurrence of Expulsion increased the nugget diameter, but, then, reduced the nugget diameter. The results of the study were evaluated with a modified Numerical Model that were consistent with each other. In this model, increase in the nugget diameter increased the force from within the nugget and accelerated the Expulsion, while the electrode force was a hindrance to the Expulsion. Zinc coated on Galvanized Steel sheets with low contact resistance and friction coefficient between zinc-zinc metal resulted in a good fit between two sheets during the welding process, which according to the Numerical Model, causes Expulsion to occur at a larger nugget diameter for Galvanized Steel sheets.

Cites

No record.

References

No record.

Cite

APA: Copy

Valaee Tale, M., MAZAHERI, Y., SHEIKHI, M., MALEK GHAINI, F., & Yousefifar, Gh.R.. (2019). Numerical and Experimental Investigation of Current and Electrode Force Effects on Expulsion in Resistance Spot Welding of Galvanized and Non-Galvanized Low-Carbon Steel Sheets. MODARES MECHANICAL ENGINEERING, 19(7 ), 1797-1804. SID. https://sid.ir/paper/177998/en

Vancouver: Copy

Valaee Tale M., MAZAHERI Y., SHEIKHI M., MALEK GHAINI F., Yousefifar Gh.R.. Numerical and Experimental Investigation of Current and Electrode Force Effects on Expulsion in Resistance Spot Welding of Galvanized and Non-Galvanized Low-Carbon Steel Sheets. MODARES MECHANICAL ENGINEERING[Internet]. 2019;19(7 ):1797-1804. Available from: https://sid.ir/paper/177998/en

IEEE: Copy

M. Valaee Tale, Y. MAZAHERI, M. SHEIKHI, F. MALEK GHAINI, and Gh.R. Yousefifar, “Numerical and Experimental Investigation of Current and Electrode Force Effects on Expulsion in Resistance Spot Welding of Galvanized and Non-Galvanized Low-Carbon Steel Sheets,” MODARES MECHANICAL ENGINEERING, vol. 19, no. 7 , pp. 1797–1804, 2019, [Online]. Available: https://sid.ir/paper/177998/en

Related Journal Papers