Metal foams are an interesting group of lightweight materials, which have appropriate physical, mechanical, thermal, electrical and acoustic properties for various engineering applications. Currently, metal foams are often manufactured in the shape of its final geometry through the casting process and by applying foaming agents. As a result, their use is limited in the complex geometries. In this paper, the forming of square aluminum foam sandwich panels at elevated temperatures is investigated, when applying gas pressure. These sandwich panels have two upper and lower layers of aluminum sheet and a mid-layer of closed-cell aluminum foam. The effect of process parameters, including gas temperature and pressure and process time, on the sandwich panel products has been experimentally investigated. The results show that if the temperature is increased, the failure is postponed, and less pressure is required. Furthermore, at higher temperatures and pressures, the bulged sections of the sandwich panel experience a noticeable local thinning percentage.

金属泡沫是一组有趣的轻质材料，具有适合各种工程应用的适当的物理，机械，热，电和声学特性。当前，金属泡沫通常通过铸造工艺和通过施加发泡剂以其最终几何形状制造。结果，它们在复杂几何形状中的使用受到限制。在本文中，研究了在施加气压时方形铝泡沫夹芯板在高温下的形成。这些夹心板具有上下两层铝板和中层闭孔铝泡沫。已通过实验研究了工艺参数（包括气体温度，压力和工艺时间）对夹芯板产品的影响。结果表明，如果温度升高，则故障将被推迟，并且所需压力更少。此外，在较高的温度和压力下，夹心板的凸出部分会出现明显的局部变薄百分比。