A method for forming a sandwich panel with a core structure and cover layers arranged on each side, wherein the core structure comprises a multitude of, in particular honeycomb-shaped, cells , and with at least one insert for forming a local reinforcement, in particular for forming a force transmission point, wherein the at least one insert is arranged between the cover layers, wherein prior to covering a core structure on both sides with cover layers , at least one insert is inserted; wherein the insert together with the core structure and the cover layers is pressed to form the sandwich panel; and wherein: i) the at least one insert has a lesser expansion (e) than a command cover layer distance (a) and is inserted, together with at least one viscous expansion compound with adhesive characteristics, into a section of the core structure, wherein the at least one cured expansion compound compensates a difference (d) between its extension (e) and the cover layer distance (a) ; wherein the insert comprises two sections, wherein one section is already cured at the time of installation of the sandwich panel , and wherein the other section is provided as the expansion compound that is viscous during installation of the sandwich panel; and wherein the expansion compound expands and cures during curing; or wherein: ii) the at least one insert in its original elastic state, in which it is larger than the command cover layer distance (a), is inserted into a cutout in the core structure , wherein the at least one insert is deformed or upset during pressing of the core structure with the cover layers and is thus being set to the cover layer distance; and wherein, during pressing, said insert cures in its deformed state. wherein prior to covering a core structure on both sides with cover layers , at least one insert is inserted; wherein the insert together with the core structure and the cover layers is pressed to form the sandwich panel; and wherein: i) the at least one insert has a lesser expansion (e) than a command cover layer distance (a) and is inserted, together with at least one viscous expansion compound with adhesive characteristics, into a section of the core structure, wherein the at least one cured expansion compound compensates a difference (d) between its extension (e) and the cover layer distance (a) ; wherein the insert comprises two sections, wherein one section is already cured at the time of installation of the sandwich panel , and wherein the other section is provided as the expansion compound that is viscous during installation of the sandwich panel; and wherein the expansion compound expands and cures during curing; or wherein: ii) the at least one insert in its original elastic state, in which it is larger than the command cover layer distance (a), is inserted into a cutout in the core structure , wherein the at least one insert is deformed or upset during pressing of the core structure with the cover layers and is thus being set to the cover layer distance; and wherein, during pressing, said insert cures in its deformed state. i) the at least one insert has a lesser expansion (e) than a command cover layer distance (a) and is inserted, together with at least one viscous expansion compound with adhesive characteristics, into a section of the core structure, wherein the at least one cured expansion compound compensates a difference (d) between its extension (e) and the cover layer distance (a) ; wherein the insert comprises two sections, wherein one section is already cured at the time of installation of the sandwich panel , and wherein the other section is provided as the expansion compound that is viscous during installation of the sandwich panel; and wherein the expansion compound expands and cures during curing; <EOS>