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http://dx.doi.org/10.5228/KSPP.2006.15.7.504

A Study on the Deep Drawing of AZ31B Magnesium Sheet at Warm and Hot Temperature  

Kim, H.G. (부산대학교 대학원 정밀기계공학과)
Bae, J.W. (부산대학교 대학원 정밀기계공학과)
Choo, D.K. (부산대학교 대학원 정밀기계공학과)
Kang, C.G. (부산대학교 기계공학부)
Publication Information
Transactions of Materials Processing / v.15, no.7, 2006 , pp. 504-511 More about this Journal
Abstract
The drawability of AZ31B magnesium sheet is estimated at various temperatures($200,\;250,\;300,\;350\;and\;400^{\circ}C$), and forming speed(20, 50, 100mm/min), thickness(0.5, 0.8, 1.0, 1.4mm). The deep drawing process of circular cup and square cup were used in forming experiments. Experimental and FEM analysis are performed to investigate drawability and affection of controlled blank holding force. Through the controlled blank holding force, drawability was improved. Limit drawing ratio is increased from 2.1 to 3.0 in circular cup drawing and change of thickness is decreased from 16.3 to 6.9%. This result is verified by FEM analysis. Through the observation of microstructure, the main cause is investigated as a quantity of the dynamic recrystallization.
Keywords
AZ31B Magnesium Sheet; Deep Drawing Process; Drawability; Limit Drawing Ratio; Dynamic Recrystallization;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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