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Influence of Selected Manufacturing Parameters on the Fatigue Strength and the Damage Behavior of Aluminum Light Weight Structures for Automotive Series Production
Author(s) -
Gerber A.,
Schulze V.,
Löhe D.
Publication year - 2003
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200390024
Subject(s) - extrusion , materials science , welding , aluminium , joint (building) , automotive industry , spot welding , composite material , metallurgy , structural engineering , engineering , aerospace engineering
What can be done to minimize the rate of fatigue failures of aluminium lightweight structures? Generally speaking, the authors’ answer is: make the weak spots, i.e. weld seams and roots, stronger. In detail, they show how joint extrusion techniques, extrusion shape, modified welding sequences, and TIG dressing of seams can be beneficial for fatigue resistance. The Figure shows a typical fatigue failure initiating at the weld root due to pores.