Influence of Welding Parameters on the Quality of Resistance Spot Welded Joints of DP600 Steels

Ľuboš Kaščák; Emil Spišák; Ivan Gajdoš

doi:10.4028/www.scientific.net/KEM.635.143

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 635Influence of Welding Parameters on the Quality of...

Influence of Welding Parameters on the Quality of Resistance Spot Welded Joints of DP600 Steels

Abstract:

Advanced high-strength dual-phase steel was developed specifically for automotive industry in order to benefit from its excellent formability and great crash absorption ability in comparison with conventional AHSS. Resistance spot welding is the dominant and effective method of joining metal sheets in automobile industry. After spot welding, important changes occur in mechanical and metallurgical properties of the spot welded areas and heat affected zones. The investigation into these changes is very important for safety, which depends on the strength of the welded joints. Weldability of the DP steel is one of the key factors governing its application in automotive industry. The influence of the primary welding parameters, especially welding current, on the weld quality was investigated by testing microhardness and tensile shear load bearing capacity of resistance spot welds of DP600 steel sheets.

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Periodical:

Key Engineering Materials (Volume 635)

Pages:

143-146

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.635.143

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Online since:

December 2014

Authors:

Ľuboš Kaščák*, Emil Spišák, Ivan Gajdoš

Keywords:

Microhardness, Tensile Test, Welding Parameters

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