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Vault structuring is a forming technology to generate three-dimensional rectangular or hexagonal structures in thin-walled materials such as sheet metal, plastic sheeting, cardboard and paper. It distinguishes itself from conventional sheet metal forming processes (such as embossing, beading and hydroforming) by allowing a self-organized structuring with minimal energy consumption during the forming process, which particularly offers material and energy savings. The main advantage is an increased rigidity (bending- and bulge rigidity) of vault structured materials compared to unstructured materials. Vault structured materials are products of Dr. Mirtsch GmbH and protected by numerous national and international patents. == Basis phenomena of the rectangular vault structuring == In the mid-70s, Prof. Dr. Frank Mirtsch discovered the principle of the self-rigidizing effect of vault structures by an unexpected structure formation in a thin-walled cylinder. For the basic process only a thin-walled cylinder and supporting elements (supporting rings) which are positioned on the inside surface of the cylinder are needed. When the cylinder is put under an exterior pressure, the material between the supporting rings is pushed inwards. After reaching a critical but still considerably small exterior pressure (instability point), rectangular vault structures are formed spontaneously. This effect is called in the jargon as „buckling“. The circumferential, straight folds arise by the underlying supporting elements, while the axial folds develop all by themselves (self-organization) in a staggered way without an underlying tool. 550px a) supporting rings b) imposed cylinder with low pressure; c) rectangular vault structure 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Vault structuring」の詳細全文を読む スポンサード リンク
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