METHOD OF MAKING FILLER WITH TRUSS VOLUME STRUCTURE AND MULTILAYER PANELS BASED ON IT Russian patent published in 2019 - IPC B32B7/00 B32B15/00 B32B3/12 B21D47/00 

FIELD: manufacturing technology.

SUBSTANCE: invention relates to production of filler with truss volume structure and multilayer composite panel based thereon. Method of making filler with truss volume structure with periodically repeating truncated tetrahedral elements includes the following stages: sheets of metal alloys are successively cut and pulled out, then roll, thus formation of unfolding of filler on plane in the form of a grid with cells of the form consisting of ribs and platforms connected to each other, then, rolled in perpendicular direction to cut line along drawing direction, and successively formed are filler cells in the form of truncated tetrahedrons formed of ribs and sites, in accordance with initial sweep of filler, with possibility of formation of truncated vertices of cells of filler of contact areas. Method of producing multilayer composite panel based on filler includes the following steps: filler is placed on feed line, mutually displaced in longitudinal and transverse direction so that ribs of truncated tetrahedrons directed perpendicular to direction of rolled metal, at final formation of first truss filler, are passed between ribs of truncated tetrahedron face, lying in the plane coinciding with the direction of the second truss aggregate rolling, then contact pads of filler are glued or welded with lining to ensure unity of multilayer structure, edge is cut and cut into commercial size of panel.

EFFECT: invention simplifies the production technology, increases production efficiency and widens the structural variety of fillers and composite panels based thereon.

2 cl, 4 dwg