Paper Titles
Influence of Pre-Forming on the Forming Limit Diagram of Aluminum and Steel Sheets
p.113
Material Superplastic Parameters Evaluation by a Jump Pressure Blow Forming Test
p.119
Mechanical Characterization of Metal Sheets by Means of Double Indentation
p.127
Plane Strain Test for Metal Sheet Characterization
p.135
Investigations on the Mechanical Properties and Formability of Friction Stir Welded Tailored Blanks
p.143
Crash Behaviour of Various Modern Steels Exposed to High Deformation Rates
p.151
Acoustic and Optical Monitoring of High-Power CO2 Laser Cutting
p.161
Investigation into Thermal Characteristics in Cutting of a Low Carbon Sheet Using a High-Power CW Nd:YAG Laser for Net Shape Manufacturing
p.169
Effect of Water Jet Orifice Geometry on Jet Behaviour and Cutting Capability
p.177

Investigations on the Mechanical Properties and Formability of Friction Stir Welded Tailored Blanks

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Abstract:

Tight competition characterizing automotive industries in the last decades has determined a strong research effort aimed to improve utilized processes and materials in sheet stamping. As far as the latter are regarded light weight alloys, high strength steels and tailored blanks have been increasingly utilized with the aim to reduce parts weight and fuel consumptions. In the paper the mechanical properties and formability of tailored welded blanks made of a precipitation hardenable aluminum alloy but with different sheet thicknesses, have been investigated: both laser welding and friction stir welding have been developed to obtain the tailored blanks. For both welding operations a wide range of the thickness ratios has been considered. The formability of the obtained blanks has been characterized through tensile tests and cup deep drawing tests, in order to show the formability in dependency of the stress condition; what is more mechanical and metallurgical investigations have been made on the welded joints.

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Periodical:

Key Engineering Materials (Volume 344)

Pages:

143-150

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.344.143

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Online since:

July 2007

Authors:

Gianluca Buffa, Livan Fratini, Marion Merklein, Detlev Staud

Keywords:

Friction Stir Welding (FSW), Laser Welding, Tailored Blank

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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