Metallisches Bauteil mit Sandwichstruktur und Verfahren zur Herstellung dieses Bauteils

摘要

A metal sandwich structural body and a manufacture thereof characterized in that a core body (4) composed of a pair of core members (6 and 7) is provided between surface plates (2 and 3) made of superplastic metallic materials, the core members (6 and 7) are bonded to the surface plates (2 and 3), free end parts (8) of the core members (6 and 7) are made integral to each other and, following evagination of the surface plates (2 and 3) the core members (6 and 7) are raised and thus a three-dimensional core body (4) is formed. When the surface plates (2 and 3) are evaginated, the free end parts (8) of the core members (6 and 7) are moved while no movement occurs in bonded portions (9 and 10) between the core members (6 and 7) and the surface plates (2 and 3) and thereby a metal sandwich structural body having an optional form can be formed by preventing unfavorable deformation and irrespective of forms.