Effect of Process Parameters on Damage during the Warm Drawing of Magnesium Alloy Shell for Notebook PC

Abstract:

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The warm drawing process from magnesium alloy sheet to notebook PC shell reveals specialities due to the low plasticity under low temperature of magnesium alloy. As Cockroft-Lathem ductile damage criteria has been introduced, the damage factors and their distribution were calculated by a series of simulations for the warm drawing process. Then the effect of a series of forming parameters on the maximum damage factor was analyzed and the crack regions were identified as the piece corners. Based on the objective of minimizing the damage factor a set of optimal parameters were achieved: temperature 250 °C, press speed 4mm/s, friction factor 0.09, concave die fillet radius 5.1mm, blank holder force 0.7 MPa, clearance between punch and die 1.15 mm.

Info:

Periodical:

Edited by:

Zhijiu Ai, Xiaodong Zhang, Yun-Hae Kim and Prasad Yarlagadda

Pages:

487-490

DOI:

10.4028/www.scientific.net/AMR.339.487

Citation:

Y. Tong "Effect of Process Parameters on Damage during the Warm Drawing of Magnesium Alloy Shell for Notebook PC", Advanced Materials Research, Vol. 339, pp. 487-490, 2011

Online since:

September 2011

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$35.00

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