锻压技术

AZ31B镁合金无模单点温渐进成形回弹影响因素研究

英文标题：Study on the influential factors of springback for magnesium alloy AZ31B in single point warm incremental forming

作者：苏春建张鹏赵俊敏王清

单位：山东科技大学

分类号：TG306

出版年,卷(期):页码：2016,41(3):44-47

摘要：

以变锥角圆台件为研究对象，基于渐进成形机理并运用ANSYS/LS-DYNA有限元模拟软件，以成形件的等效应力和成形件中截面的回弹量为主要研究指标，研究了不同工艺参数对AZ31B镁合金板材无模单点温渐进成形回弹的影响，重点分析了成形温度、摩擦条件和工具头直径对AZ31B镁合金板材无模单点温渐进成形后工件回弹量的影响规律。研究结果表明：当成形温度为250 ℃，静摩擦系数为0.2、动摩擦系数为0.1，工具头直径在Ф10～Ф12 mm范围时，最有利于对AZ31B镁合金板材无模单点温渐进成形后成形件回弹的控制。

For the variable angle truncated cone, based on the incremental forming mechanism and chosen equivalent stress and sections springback value of forming part as major research objects, the influences of different process parameters on the springback of single point warm incremental forming were studied by software ANSYS/LS-DYNA. Furthermore, the influence regulations of forming temperature, friction conditions and tool diameter on the springback of single point warm incremental forming for magnesium alloy AZ31B were researched mainly. The results show that the springback can be effectively controlled when the forming temperature is 250 ℃, the static friction coefficient is 0.2, the coefficient of kinetic frictionis is 0.1 and the diameter of the tool is Ф10-Ф12 mm.

基金项目：

国家自然科学基金资助项目（51305241）；山东省高等学校科研计划项目（J12LA03）；山东省泰山学者建设工程专项（tshw20130956)

苏春建(1980-)，男，博士，副教授

参考文献：

［1］王海，王进，王廷和，等.镁合金板料工具转动渐进成形工艺参数实验研究[J]. 锻压技术, 2015, 40(7):48-52.Wang H，Wang J，Wang T H，et al. Experimental research on process parameters of magnesium alloy in rotational incremental sheet forming[J]. Forging & Stamping Technology, 2015, 40(7):48-52.
［2］张文玉,陈振华.温度对AZ31镁合金轧制板材冲压性能的影响[J]. 热加工工艺, 2010，39(8) :38-41．Zhang W Y, Chen Z H. Effect of temperature on drawability of AZ31 magnesium alloy rolling sheet[J].Hot Working Technology, 2010，39(8) :38-41．
［3］张国新，戴京东.金属板料单点渐进成形变形控制方法[J].锻压技术，2013，38（12）:28-31.Zhang G X,Dai J D. Deformation control method of single-point incremental sheet forming[J]. Forging & Stamping Technology，2013，38（12）:28-31.
［4］尹长城,王元勋,吴胜军. 金属板材单点渐进成形过程的数值模拟[J]. 塑性工程学报, 2005,12(2):17-21．Yin C C,Wang Y X,Wu S J. Numerical simulation of sheetmetal digital incremental forming process[J]. Journal of Plasticity Engineering,2005,12(2):17-21．
［5］Nguyen Duc Toan, Yang Seung Han, Jung Dong Won, et al. A study on material modeling to predict spring-back in V-bending of AZ31 magnesium alloy sheet at various temperatures[J]. The International Journal of Advanced Manufacturing Technology，2012，(3):5-8．
［6］苏春健,李甜甜.AZ31B镁合金轴对称件单点无模温渐进成形新工艺规律[J].稀有金属材料与工程,2015,44(3):649-655.Su C J,Li T T. Rules of new single point incremental forming without mould for AZ31B magnesium alloy axisymmetric parts[J]. Rare Metal Materials and Engineering, 2015,44(3):649-655.
［7］Ambrogio G, Cozza V, Filice L,et al. An analytical model for improving precision in single point incremental forming[J]. Journal of Materials Processing Technology, 2007,191(1-3):92-95.

服务与反馈：

【本网站尚未开通全文下载服务】【加入收藏】