Transactions of Materials and Heat Treatment

Title：Numerical simulation of magnesium alloy square parts in hydraulic deep drawing

Authors： MAO Xian-chang YANG Lian-fa LIU Yun LI Shi-yang

Unit： Hechi University Guilin University of Electronic Technology

KeyWords： magnesium alloy square parts hydraulic deep drawing deformation effects numerical simulation

ClassificationCode：TG386.3

year,vol(issue):pagenumber：2013,38(3):24-28

Abstract：

The deep drawing process of AZ31B magnesium alloy square parts in hydraulic deep drawing was simulated using the commercial FE software Dynaform. The technological parameters which influence the wall thickness difference and minimum wall thickness were introduced, including the load method of blank holder force, drawing speed, hydraulic pressure, etc. Furthermore, the wall thickness distribution of magnesium alloy square parts was discussed. The results show that preferable forming effect of AZ31B magnesium alloy square parts can be obtained in hydraulic deep drawing when deep drawing speed is 3000 mm·s-1, hydraulic pressure is 12MPa, initial blank holder force on straight blocks and circular blocks are 1 and 3 kN with both blank holder force load path on the two blocks are “increase-constant-decrease” and the press amplification ΔQ is 0.5 kN. The forming effect of square parts would be influenced similarly in deep drawing later whether the blank holder force is kept increasing or constanting. Hydraulic pressure is hardly influence the extremum wall thickness distribution of magnesium alloy square parts.

Funds：

国家自然科学基金资助项目(51271062)；广西自然科学基金资助项目(2012GXNSFBA053147)；广西教育厅科研项目(201106LX592)；河池学院大学生创新创业训练计划项目(2013-12、2013-17)

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