Friction stir spot welding of AA 1050 Al alloy and hot stamped boron steel (22MnB5)

Autor:	P. Alvarez, Egoitz Aldanondo, A.A.M. da Silva, Ekaitz Arruti, A. Echeverria
Rok vydání:	2010
Předmět:	Materials science Metallurgy Alloy Rotational speed engineering.material Condensed Matter Physics Microstructure Indentation hardness Durability law.invention Shear (sheet metal) Optical microscope law engineering General Materials Science Composite material Spot welding
Zdroj:	Science and Technology of Welding and Joining. 15:682-687
ISSN:	1743-2936 1362-1718
DOI:	10.1179/136217110x12785889549462
Popis:	The present study investigates the effect of joining parameters on the microstructural and mechanical characteristics of dissimilar friction stir spot welding (FSSW) between AA 1050 Al and 22MnB5 hot stamped boron steel. Mechanical performance has been evaluated by shear and microhardness testing. Optical microscopy has been used to investigate the microstructure generated in the different FSSW regions. A macrostructural examination has revealed the creation of mechanical interlocking in the Al steel connections. No volumetric defects or any other imperfection has been found in all FSSW connections. Shear failure load has increased with increasing both tool rotational speed and plunge depth for all FSSW connections. Higher plunge depth has improved the mechanical interlocking between lower and upper sheet due to the formation of a larger secondary flash. Encouraging results have been obtained using coated WC–Co tools in terms of durability and joint performance.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::13359a1a30d05b18ea648b55016b3edf https://doi.org/10.1179/136217110x12785889549462 Zobrazit plný text záznamu Plný text ve formátu PDF