Journal ArticleDOI
Forming Al and Mg Alloy Sheet and Tube at Elevated Temperatures
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TLDR
In this paper, the formability limits of aluminum and magnesium alloys are investigated through hydraulic bulging and deep drawing, and the submerged tool concept is introduced to investigate the effect of temperature and initial blank size on the attainable highest punch velocity.Abstract:
Experimental investigation on the formability limits of aluminum and magnesium alloys are conducted through hydraulic bulging and deep drawing. New tube hydroforming tooling was designed and the submerged tool concept is introduced. Tube hydroforming experiments were conducted with and without axial feed by using AA6061 tubes. The formability of Mg AZ31-O sheets are determined by hydraulic bulging using similar submerged tool. Finally the effect of temperature and initial blank size on the attainable highest punch velocity is investigated and round cups from Mg AZ31-O were successfully formed in a heated tool with punch speeds up to 300 mm/s.read more
Citations
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Nonisothermal warm deep drawing of SS304: FE modeling and experiments using servo press
Serhat Kaya,Serhat Kaya +1 more
TL;DR: In this paper, a viscoplastic thermal material model is adopted for non-work softening material behaviors, as seen in low-temperature forming of SS304, and found to be easily applicable and quite satisfactory.
Journal ArticleDOI
Finite-Element Damage Analysis for Failure Prediction of Warm Hydroforming Tubular Magnesium Alloy Sheets
TL;DR: In this article, the failure prediction of Mg-based alloy during the tube hydroforming process at elevated temperatures by using the Marciniak and Kuczynski (M-K) model was proposed.
Journal ArticleDOI
Optimisation of the Stamping Processes for a Drawn-Part Made of Aluminium
TL;DR: In this paper, the authors investigated the influence of some technological lubricants and anti-adhesive layers on frictional resistance occurring during the sheet-metal forming process of an aluminium cup.
Journal ArticleDOI
Microstructure and mechanical properties of A7N01-T4 aluminum alloy metal inert gas welded joints filled with self-designed 7A48 aluminum alloy wire
TL;DR: In this article , a self-designed low copper 7A48 wire containing scandium was used as filler material for metal inert gas (MIG) welding of 4'mm thick A7N01-T4 aluminum alloy plates.
References
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Journal ArticleDOI
Hydromechanical Deep-Drawing of Aluminium-Alloys at Elevated Temperatures
TL;DR: In this article, a technique combining hydromechanical and warm drawing to reduce the drawing force and increase the transmittable drawing force in the deep drawing process of aluminium sheets by flange heating and by using a counter pressure is presented.
Journal ArticleDOI
Determination of the flow stress of magnesium AZ31-O sheet at elevated temperatures using the hydraulic bulge test
TL;DR: In this article, the authors performed hydraulic bulge tests for Mg AZ31-O alloy sheets using a submerged tool, designed to minimize the temperature variation in the sheet, at various approximate true strain rates.