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Laminating craft is usual adopted when using Vicell foam as core material to manufacture sandwich structure. It is recommended to control heel block by adjusting thickness in order to avoid exceeding bubble elastic creep limit especially when solidification is underway in the mold.
In order to promote foamy core material to large-load and light structure, an important way is to increase its shearing strength. Because the performance improvement of foamy core material is usually achieved through increasing density, hence it is necessary to find a way of combining fiber-strengthening with foamy core material. An structural successful method is to add a ventral structure penetrating through a 45 angle and the size can be adjusted according to the stress requirement. The interfacial property between foamy core material and thin-gauge skin can be helpful to increase structural shocking injured biliary. The interfacial property between foamy core material and thin-gauge skin can be strengthened by using z-direction fiber. According to research and application, acupuncture and sewing are effective ways of improving foamy core material.