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Journal of Materials Engineering and Performance

Erschienen in:

28.11.2016

Microstructure and Tensile-Shear Properties of Resistance Spot Welded 22MnMoB Hot-Stamping Annealed Steel

verfasst von: Yang Li, Xuetuan Cui, Zhen Luo, Sansan Ao

Erschienen in: Journal of Materials Engineering and Performance | Ausgabe 1/2017

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Abstract

The present paper deals with the joining of 22MnMoB hot-stamping annealed steel carried out by the spot welding process. Microstructural characterization, microhardness testing and tensile-shear testing were conducted. The effects of the welding parameters, including the electrode tip diameter, welding current, welding time and electrode force upon the tensile-shear properties of the welded joints, were investigated. The results showed that a weld size of 9.6 mm was required to ensure pullout failure for the 1.8-mm-thick hot-stamping annealed steel sheet. The welding current had the largest influence upon the tensile-shear properties of the 22MnMoB steel welded joint. The bulk resistance should play an important role in the nugget formation. In pullout failure mode, failure was initiated at the heat-affected zone, where softening occurs owing to the tempering of martensite.

Vorheriger Artikel Microstructure and Properties of Plasma Source Nitrided AISI 316 Austenitic Stainless Steel

Nächster Artikel Structural and Microhardness Changes After Turning of the AISI 1045 Steel for Minimum Quantity Cooling Lubrication

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Titel: Microstructure and Tensile-Shear Properties of Resistance Spot Welded 22MnMoB Hot-Stamping Annealed Steel
verfasst von: Yang Li
Xuetuan Cui
Zhen Luo
Sansan Ao
Publikationsdatum: 28.11.2016
Verlag: Springer US
Erschienen in: Journal of Materials Engineering and Performance / Ausgabe 1/2017
Print ISSN: 1059-9495
Elektronische ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-016-2448-y

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