Patent ID: 7588069

Claim:
A method for the manufacture of light open porous components of metal, metal alloys, plastic or ceramic of any geometry, wherein the component is manufactured through pouring liquid material into a casting device ( 01 ), comprising: mounting a core stack ( 04 ) in a casting mold ( 03 ), casting the liquid material into the casting mold to form a composite article and removing the core stack ( 04 ) from the composite article to obtain a light open porous component, wherein the core stack ( 04 ) is designed as regular multi-dimensional core lattice ( 09 ) with defined core lattice planes ( 12 ), where each core lattice plane ( 12 ) is preconstructed of individual regular core bodies ( 10 ) joined through ligaments and the individual core lattice planes ( 12 ) are joined with one another in two or several layers, wherein the individual layers are displaced to each other by a lattice offset to form the core stack ( 04 ) so that the core bodies ( 10 ) previously slicked or provided with adhesive of the individual planes ( 12 ) contact one another by means of binder or adhesive bridges and the material used for manufacturing the core lattice planes ( 12 ) is an inorganic powder or sand.