A comprehensive review on pre- and post-forming evaluation of aluminum to steel blanks via friction stir welding
The International Journal of Advanced Manufacturing Technology(2021)
摘要
Tailored blanks of aluminum and steel have increasing applications in recent years. In less critical section of a parts where it is not necessary to use high strength steel but requires lightweight, aluminum provides a reliable substitute. As a promising alternative to join aluminum and steel, friction stir welding has been studied extensively. This review paper emphasizes on the evaluation of pre- and post-forming of friction stir welded blanks and manufacturability issues during metal forming. Upon selection of appropriate parameters to obtain a successful weld, quality and performance are reviewed. The necessity and effect of post-welding heat treatment on heat treatable and non-heat treatable weld joint are discussed. Following, evaluations of pre and post-forming are presented, including mechanical and microstructure characterization as well as formability of the joint using limiting dome height test and springback via v-bending and twist forming. This article concludes important aspects in heat treatment and forming of friction stir welded aluminum and steel blanks.
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关键词
Friction stir welding,,Aluminium,,Mild steel,,Post-forming
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