초록 ▼

A component, particularly for land vehicles, preferably a car body component for motor vehicles, consists of a metallic foam material with a foamed porous layer comprising a metal powder and a blowing agent and possibly at least one solid metal sheet, there being metallic bonds between the solid met

A component, particularly for land vehicles, preferably a car body component for motor vehicles, consists of a metallic foam material with a foamed porous layer comprising a metal powder and a blowing agent and possibly at least one solid metal sheet, there being metallic bonds between the solid metal sheet and the foamed porous layer. The component has at least one stamped contour which is raised from its surface, the angles, occurring in the region of the transitions between the three-dimensionally molded contour and the surface region being of the order of 100.degree. to 180.degree.. To produce the component, an essentially flat, metallic foam material, which is provided with solid metal sheets as covering layers, is initially shaped into a semi-finished molded product, which is end-contoured on one side, and the semi-finished molded product, so formed, is placed into a foaming mold, one wall of which is adapted to the end-contoured side of the semi-finished molded product, and foamed therein.

대표청구항 ▼

[ What we claim is:] [1.] A method of manufacturing a motor vehicle comprising the steps of:producing a plurality of motor vehicle components;assembling said component into a motor vehicle; andproducing at least one of said components according to the following process:forming a composite of metal f

[ What we claim is:] [1.] A method of manufacturing a motor vehicle comprising the steps of:producing a plurality of motor vehicle components;assembling said component into a motor vehicle; andproducing at least one of said components according to the following process:forming a composite of metal foam material from a metal powder mixed with a blowing agent;providing a solid metal body;pressing one side of said solid metal body against one side of said composite;effecting a bond between said one side of said solid metal body and said one side of said composite as a result of said pressing to thereby form a generally flat structure;shaping said structure into a desired configuration in which said solid metal body has a shaped external surface conforming to said desired configuration, said shaped external surface having a contour portion having an angle of less than 180 degrees;maintaining said bond between said one side of said metal body and said one side of said composite during and after completion of said shaping step;providing a first mold surface having a configuration conforming to the configuration of said shaped external surface of said solid metal body;placing said shaped external surface of said solid metal body on said first mold surface in conforming engagement with said first mold surface;providing a second forming mold surface having a configuration conforming generally to the configuration of said shaped external surface of said solid metal body;positioning said second mold surface in a superimposed and generally parallel relationship with said first mold surface;said positioning step including positioning said second mold surface in a position spaced from said composite;foaming said composite of metal foam material;expanding said composite of foam material in a direction away from said one side of said solid metal body while maintaining a conforming relationship between said shaped external surface of said solid metal body and said first mold surface;utilizing said second mold surface to limit the expansion of said composite by effecting engagement between said composite and said second mold surface to thereby obtain an expanded component of substantially constant thickness; andremoving said expanded component from said first and second mold surfaces to thereby obtain said at least one component having a first outer boundary formed by said shaped external surface of said solid metal body and a second outer boundary formed by said composite and conforming generally to the configuration of said second mold surface and in which the expanded composite of metal foam material is bonded to the solid metal body and the composite of metal foam material has a substantially uniform integrity of cell structure.