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Steel and Composite Structures Volume 18, Number 2, February 2015 , pages 345-355 DOI: https://doi.org/10.12989/scs.2015.18.2.345 |
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Effect of some welding parameters on nugget size in electrical resistance spot welding |
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Ömer Savaş
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| Abstract | ||
| In this study, the effects of weld parameters on nugget size and tensile-shear strength of welding joint in electrical resistance spot welding of galvanized DP 600 steel sheets having 1.2 mm were investigated. Taguchi design method has been employed to examine the effects of five parameters of welding current, electrode pressure, welding time, clamping time and holding time by using the L27 (53) orthogonal array. Results showed that the most effective parameters on tensile shear strength and the nugget size ratio (hn/dn) were found as welding current and welding time, whereas electrode pressure, clamping time and holding time were less effective factors. Max. 545 MPa strength was obtained through proposed optimum conditions by Taguchi technique. | ||
| Key Words | ||
| resistance spot welding; nugget size ratio; tensile shears strength; Taguchi method | ||
| Address | ||
| Yildiz Technical University, Naval Architect and Marine Engineering Faculty, 34349, İtanbul, Turkey. | ||