A study on the boss forming process of AZ31 Mg alloy sheet
A study on the boss forming process of AZ31 Mg alloy sheet
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AZ31镁合金板材凸台成形工艺研究
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
Y. Chang
中科院分区：
文献类型：
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作者：
J. E. Park;Hyung Rae Kim;Sangho Ahn;Y. Chang
采用AZ31镁合金板材，在250 °C、300 °C和350 °C温度下，采用不同的润滑条件进行了一系列凸台成形试验，以获得最佳工艺条件。镁合金板具有非常细尺寸的晶粒的均匀分布。采用DEFORM 2D有限元分析程序，通过改变摩擦条件，可以减少凸台成形过程中产生的表面缺陷。改进后的凸台成形工艺，只在正面润滑，被发现是成功的，在制造凸台没有缺陷。
A series of boss forming tests has been carried out using an AZ31 Mg alloy sheet at 250 °C, 300 °C, and 350 °C with various lubrication conditions to obtain optimum process conditions. The Mg alloy sheet had a homogeneous distribution of very fine sized grains. Surface defects generated during boss forming process could be reduced by changing the friction conditions, as prescribed by FEM analysis using the DEFORM 2D program. The modified boss forming process, lubricating only on the front side, was found to be successful in manufacturing the boss without defects.