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    • 4. 发明申请
    • METHOD FOR THE PRODUCTION OF A SANDWICH STRUCTURE FOR A SANDWICH COMPOSITE
    • 一种用于生产核结构作为芯复合
    • WO2004043685A2
    • 2004-05-27
    • PCT/DE0303798
    • 2003-11-14
    • AIRBUS GMBH
    • KEHRLE RAINER
    • B31D3/00E04C2/32B31D5/00
    • E04C2/326B31D3/005
    • The invention relates to a method for the production of a sandwich structure for a sandwich composite, whereby the sandwich structure is made from a thin foldable starting material of undefined length. The starting material is folded to give a three-dimensional, multi-faceted, developing structure and the starting material undergoes a contraction of the material web in the longitudinal and width direction and a volume expansion relative to the dimensions of the starting material and can be arranged between two cover layers forming the external surfaces of the sandwich composite and connected to the cover layers by means of gluing or some other connection. According to the invention, a sandwich structure can be achieved in which the starting material is not stretched or compressed but rather continuously folded with accurate surfaces and angles without the introduction of cuts or perforations, whereby the material web, in the unfolded state, is pre-treated in a continuous process from the upper and lower side along curved or several straight contiguous star-shaped fold lines and repeating patterns of fold lines, or within the surfaces defined by the fold lines such that fold edges which permit a kink are generated, whereupon, after the successful pre-treatment, an initiation of the folding process in the region of the fold lines on the upper side and the lower side of the material web is carried out, after the initiation the web is decelerated such as to be folded along the fold lines, acting in the manner of hinges, to give a structure extending into the third dimension and, after the folding process, the material web can be treated to stabilise the folded structure.
    • 一种用于制备芯结构的芯复合材料,其中所述芯结构是由未定义长度的薄可折叠的起始材料,其中所述起始材料被折叠成三维的,多表面,显影的结构,和方法,其中所述起始材料是在宽度和长度方向的材料纤维网的收缩,并 可以被布置为在该空间相对于所述原料经历的膨胀和两者之间形成,芯复合覆盖层的外表面膨胀,通过粘接或其它连接到所述覆盖层相连接。 建立一个芯结构,其中所述起始材料不被拉伸或压缩,但 - 安装无切口或冲孔 - 连续是面积和等角折叠,提供的是材料的在展开状态下的幅材在连续过程中从顶部和底部 是沿弯曲或多个直的折叠线和星形形状中延伸的折叠线或重复图案接触的表面,这是由折叠线分隔的,内预处理,从而形成一个屈曲允许折叠边缘; 了在顶部和材料幅的下侧上的折叠线的区域中的折叠操作的预处理开始后进行; 该材料幅开始后延迟,由此折叠通过作为铰链向在第三维结构的延伸的折叠边缘; 并且该材料幅能够褶裥加工之后进行处理,以稳定的折叠结构。