The use of magnesium alloys meets the need of reducing weight of components (especially in automotive and aerospace industry) keeping unmodified their mechanical properties. The adoption of magnesium alloys in sheet forming processes (which allows optimal mechanical properties) is still limited, due to their low formability at room temperature caused by the hexagonal crystal structure. Conventional sheet forming processes (like Deep Drawing) have to be modified in order to allow the adoption of such lightweight materials. In this work, the authors aim to understand the process conditions and the parameters operating window which can lead to a successful improvement in the formability of a magnesium alloy (AZ31). A numerical Finite Element analysis based on experimental data (both warm DD tests and tensile tests) was performed to properly design the thermal gradient to superimpose during the DD process. The estimation of the critical condition occurrence was based on the calculated local temperature increase.
Finite Element Analysis Of The Warm Deep Drawing Process Of Magnesium Alloys / Palumbo, G.; Zhang, S. H.; De Pinto, Stefano; Tricarico, L.; Y. C., Xu; Zhang, K.. - STAMPA. - 712:(2004), pp. 814-819. (Intervento presentato al convegno 8th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2004 tenutosi a Columbus, OH nel June 13-17, 2004) [10.1063/1.1766627].
Finite Element Analysis Of The Warm Deep Drawing Process Of Magnesium Alloys
G. Palumbo;De Pinto, Stefano;L. Tricarico;
2004-01-01
Abstract
The use of magnesium alloys meets the need of reducing weight of components (especially in automotive and aerospace industry) keeping unmodified their mechanical properties. The adoption of magnesium alloys in sheet forming processes (which allows optimal mechanical properties) is still limited, due to their low formability at room temperature caused by the hexagonal crystal structure. Conventional sheet forming processes (like Deep Drawing) have to be modified in order to allow the adoption of such lightweight materials. In this work, the authors aim to understand the process conditions and the parameters operating window which can lead to a successful improvement in the formability of a magnesium alloy (AZ31). A numerical Finite Element analysis based on experimental data (both warm DD tests and tensile tests) was performed to properly design the thermal gradient to superimpose during the DD process. The estimation of the critical condition occurrence was based on the calculated local temperature increase.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
