Gas‐pressure Forming of an AlMg‐Alloy Sheet at Elevated Temperatures
Gas‐pressure Forming of an AlMg‐Alloy Sheet at Elevated Temperatures
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高温下铝镁合金板的气压成形
DOI：
10.1002/srin.200506118
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发表时间：
2005
影响因子：
2.2
通讯作者：
M. Kleiner
中科院分区：
文献类型：
--
作者：
B. Rauscher;M. Gösling;W. Homberg;M. Kleiner
使用铝形成汽车轻量化部件提供了许多优点。与其他变形铝合金相比，特别是AlMg-合金通常显示出良好的可成形性，这有利于复杂部件的生产。然而，在室温下形成含镁合金会导致屈服模式，从而阻止其用于A类表面应用。此外，在室温下，钢的可成形性仍然超过AlMg合金。因此，在本研究中，金属板成形是在温成形的典型温度范围内进行的。它应该受益于温成形的优点，如可实现的高应变和成形零件的表面质量改善，同时不具有与超塑性成形相关的长生产时间和高能耗的缺点。
Forming of automotive leightweight parts using aluminium offers numerous advantages. Compared to other wrought aluminium alloys, in particular AlMg‐alloys generally show a good formability which is favourable for the production of complex parts. However, forming of Mg‐containing alloys at room temperature leads to yielding patterns preventing their implementation for class‐A‐surface applications. Furthermore, the formability of steel still exceeds that of AlMg‐alloys at room temperature. Thus, in the present study, sheet metal forming is applied at a temperature range that is typical for warm forming. It is supposed to profit from the advantages of warm forming like high achievable strains and improved surface quality of the formed part, while not having the disadvantages of long production times and high energy consumption, which is correlated with superplastic forming.