Two-layered aluminum foam consisting of both closed and open cells is expected to improve the functionality of aluminum foam, because the cells have different morphologies and characteristics. In this study, press forming of the closed-cell layer of the two-layered aluminum foam immediately after foaming was performed to shape the closed-cell layer. By measuring the temperatures of the two layers during foaming, we found that it is necessary to use aluminum alloy with a higher melting point for the open-cell layer than that for the closed-cell layer to foam the closed-cell layer. In the press forming experiments, the closed-cell layer could be shaped by press forming while the shape of the open-cell layer was maintained.

中文翻译：

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闭孔和开孔结构的两层铝泡沫的制造以及起泡后立即通过冲压成型来形成闭孔层的形状

由于泡孔具有不同的形态和特性，因此由密闭孔和开孔组成的两层铝泡沫有望改善铝泡沫的功能。在该研究中，在发泡之后立即对两层铝泡沫的闭孔层进行压制成型以使闭孔层成形。通过测量发泡过程中两层的温度，我们发现有必要使用开孔层的熔点高于闭孔层的熔点的铝合金来使闭孔层发泡。在压制成型实验中，闭孔层可以通过压制成型而保持开孔层的形状。