Investigation of the Effect of Some Factors on Resistance Spot Welding of DKP Steel Using Response Surface Method
Abstract
Due to many advantages of Resistance Spot Welding (RSW) such as inexpensive, easy to automate, and high-quality joints capability, it is preferred and used mostly in automative industry. In the RSW process, metals are joined based on the contact resistance between the electrodes and metals. During the process, the cause of the welding nugget on the surface is the increase in temperature because of the electrical resistance of the materials and the melting formed. Many factors affect the success of the RSW process. In this research, we investigated the possibility of mild steel (DKP) sheets welding using the RSW method. There important factors, i.e., time, pressure, and current were tested. The results were evaluated by measuring the shear strength of DKPsheets having 1 mm thickness. To reduce the number of experiments, the experiments are designed and carried out according to the Box-Behnken experimental design. It is one of the most useful response surface methods (RSM). It was aimed to find the effects of investigated parameters and their possible interactions on tensile strength of DKP sheets joined by RSW process. Another important purpose was to generate a mathematical model which can be used to estimate tensile strength as a function of tested parameters. As a result, a second-order model which was important statistically was developed and it was capable of to estimate the dependent variable in very high accuracy.
Keywords
Resistance spot welding DKP steel Tensile strength Response surface method Box-behnken design
References
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- Han, L., Thornton, M. & Shergold, M. (2010). A comparison of the mechanical behavior of self-piercing riveted and resistance spot welded aluminum sheets for the automotive industry. Mater Des. 31, 1457–1467.
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- Qiu, R., Iwamoto, C., & Satonaka, S. (2009). Interfacial microstructure and strength of steel/aluminum alloy joints welded by resistance spot welding with cover plate. Journal of Materials processing technology, 209(8), 4186-4193.
- Kahraman, N. (2007). The influence of welding parameters on the joint strength of resistance spot-welded titanium sheets. Mater Des. (28), 420–427.
- Myers, R. H., Montgomery, D. C. & Anderson-Cook, C. M. (Eds.) (2016). Response surface methodology: Process and product optimization using designed experiments (4th ed.). John Wiley & Sons.
- Shirmohammadi, D., Movahedi, M. & Pouranvari, M. (2017). Resistance spot welding of martensitic stainless steel: Effect of initial basemetal microstructure on weld microstructure and mechanical performance, Materials Science & Engineering A, 703, 154–161.
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Abstract
References
- Babua, N. K., Brauserb, S., Rethmeierb, M. & Cross, C. E. (2012). Characterization of microstructure and deformation behaviour of resistance spot welded AZ31 magnesium alloy. Materials Science and Engineering A 549, 149– 156.
- Baytemir, M. (2011). Ostenitik AISI 310-ferritik AISI 430 Paslanmaz Çeliklerin Elektrik Direnç Nokta Kaynağı ile Birleştirilmesi ve Mekanik özelliklerinin incelenmesi [Unpublished Master Thesis Sakarya Üniversitesi].
- Bemani, M. & Pouranvari, M. (2020). Microstructure and mechanical properties of dissimilar nickel-based superalloys resistance spot welds. Materials Science & Engineering A, 773, 138825.
- Han, L., Thornton, M. & Shergold, M. (2010). A comparison of the mechanical behavior of self-piercing riveted and resistance spot welded aluminum sheets for the automotive industry. Mater Des. 31, 1457–1467.
- Hayat, F. (2005). Çift-fazlı çeliklerin nokta direnç kaynağında MHO ile kaynak süresinin mekanik özelliklere etkisi [Unpublished Master Thesis Zonguldak Karaelmas Üniversitesi].
- Qiu, R., Iwamoto, C., & Satonaka, S. (2009). Interfacial microstructure and strength of steel/aluminum alloy joints welded by resistance spot welding with cover plate. Journal of Materials processing technology, 209(8), 4186-4193.
- Kahraman, N. (2007). The influence of welding parameters on the joint strength of resistance spot-welded titanium sheets. Mater Des. (28), 420–427.
- Myers, R. H., Montgomery, D. C. & Anderson-Cook, C. M. (Eds.) (2016). Response surface methodology: Process and product optimization using designed experiments (4th ed.). John Wiley & Sons.
- Shirmohammadi, D., Movahedi, M. & Pouranvari, M. (2017). Resistance spot welding of martensitic stainless steel: Effect of initial basemetal microstructure on weld microstructure and mechanical performance, Materials Science & Engineering A, 703, 154–161.
- Yener, S. (1999). Otomotiv sanayinde kullanılan direnç nokta kaynak elektrodu ömrünün deneysel analizi. [Unpublished Master Thesis İstanbul Teknik Üniversitesi].
Details
| Primary Language | English |
|---|---|
| Subjects | Engineering |
| Journal Section | Articles |
| Authors | |
| Publication Date | December 31, 2021 |
| Published in Issue | Year 2021Volume: 16 |
