Resistance Spot Welding of Advanced High Strength TWIP Steels

Pasquale Russo Spena; Manuela De Maddis; Franco Lombardi; Fabio D’Aiuto

doi:10.4028/www.scientific.net/AMM.423-426.876

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 423-426Resistance Spot Welding of Advanced High Strength...

Resistance Spot Welding of Advanced High Strength TWIP Steels

Abstract:

In this study, advanced high manganese austenitic steel sheets were welded by resistance spot welding at different welding parameters. The effects of welding current, clamping force, number of the current impulse, and duration of each current impulse were examined. Based on Taguchis method, an L-27(3¹³) orthogonal array was employed for carrying out resistance spot welding tests. The welded sheets were subjected to tensile-shear tests in order to determine the strength of the welded joints. Basically, the results showed that tensile-shear strength increase with clamping force at the medium and high effective welding time (>400 ms). However, the occurrence of micro cracks within the welded joints may justify the scattering of tensile-shear strength values.

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Periodical:

Applied Mechanics and Materials (Volumes 423-426)

Pages:

876-880

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.423-426.876

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Online since:

September 2013

Authors:

Pasquale Russo Spena, Manuela De Maddis, Franco Lombardi, Fabio D’Aiuto

Keywords:

Resistance Spot Welding, Tensile-Shear Test, TWIP Steel, Welded Joint

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