کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
794951 902578 2010 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ductility of a magnesium alloy in warm forging with controlled forming speed using a CNC servo press
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Ductility of a magnesium alloy in warm forging with controlled forming speed using a CNC servo press
چکیده انگلیسی

The influence of press ram motion on forging performance for magnesium alloys was examined at elevated temperatures using an upsettability test on a CNC servo press. The forging limit of a wrought AZ31B (Mg–3 mass%Al–1 mass%Zn) magnesium specimen, forged using applied deceleration of the press ram motion, was found to be 30% higher than the forging limit achieved without press ram motion control. A finite element analysis was conducted to model the experimental results. The calculated temperature distribution was relatively uniform during upsetting with decelerated ram motion, and the maximum equivalent strain was maintained at a low level. Experimental and simulation results suggested that the influence of the press ram motion on the ductility of the Mg specimen could be described by a strain localization model. Furthermore, the ductility of Mg specimens during decelerated ram motion was improved in backward extrusion.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Materials Processing Technology - Volume 210, Issue 14, 1 November 2010, Pages 2029–2035
نویسندگان
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