Resistance Spot Weldability of Hot-Formed Ultra High Strength Steel Based on Virtual and Physical Experiment

Article Preview

Abstract:

In this study, virtual and physical experimental investigations were performed on the resistance spot weldability of hot-formed ultra high strength steels (UHSS). The sheets were joined by the resistance spot welding as lap or cross joint. The mechanical properties were assessed in terms of cross tension strength (CTS) and tensile shear strength (TSS). The micro structural profile and weld nugget diameter were also investigated. Both virtual and physical methods yielding results are in good agreement. The results are discussed in the light of earlier work published in the literature and contribute to a better understanding on the evaluation of resistance spot weldability.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

244-250

Citation:

Online since:

April 2015

Export:

Price:

* - Corresponding Author

[1] N.T. Williams, J.D. Parker, Review of resistance spot welding of steel sheets: Part 1- Modeling and control of weld nugget formation, International Materials Reviewing. 49 (2004) 45-75.

DOI: 10.1179/095066004225010523

Google Scholar

[2] V. Rajinikanth, K. Mukherjee, S. Ghosh Chowdhury, et al, Mechanical property and microstructure of resistance spot welded twinning induced plasticity-dual phase steels joint, Science and Technology of Welding and Joining. 18 (2013) 485-491.

DOI: 10.1179/1362171813y.0000000127

Google Scholar

[3] M. Balasubramamian, V. Balasubramamian, Effect of process parameters on SPRC35 spot welded automotive panels, ACTA Metallurgica Sinica., 23 (2010) 185-190.

Google Scholar

[4] Chao Yuh J., Ultimate Strength and failure mechanism of resistance spot weld subjected to tensile, shear, or combined tensile/shear loads, Journal of Engineering Materials and Technology. 125 (2003) 125-132.

DOI: 10.1115/1.1555648

Google Scholar

[5] O. Hatsuhiko, M. Gen, S. Tatsuya, et al, Resistance spot weldability of high strength steel (HSS) sheets for automobiles, Nippon Steel Technical Report. 95 (007) 39-45.

Google Scholar

[6] D.C. Saha, Y. Cho, Y.D. Park, Metallographic and fracture characteristics of resistance spot welded TWIP steels, Science and Technology of Welding and Joining. 18 (2013) 711-719.

DOI: 10.1179/1362171813y.0000000151

Google Scholar

[7] M. Pouranvari, S.P.H. Marashi, Critical review of automotive steels spot welding: process, structure and properties, Science and Technology of Welding and Joining. 18 (2013) 361-403.

DOI: 10.1179/1362171813y.0000000120

Google Scholar

[8] BS EN ISO 14272-2001 Specimen dimensions and procedure for cross tension testing resistance spot and embossed projection welds. (2001).

DOI: 10.3403/02522974

Google Scholar

[9] BS EN ISO 14273-2001 Specimen dimensions and procedure for shear testing resistance spot, seam and embossed projection welds. (2001).

DOI: 10.3403/02521576

Google Scholar