TWO DIMENSIONAL AND THREE DIMENSIONAL STRUCTURES AND PROCESS FOR PRODUCING SAME

摘要

The invention pertains to two dimensional structures in particular grid like structures and to three dimensional structures in particular truss-like structures. The invention furthermore pertains to a process that allows production of these structures in a cheap and simple way. A grid like structure can be obtained by a roll press forming process wherein a quantity of the material is deposited into the nip between a first and second counter rotating roll and the material is pressed between the two rolls. The two counter rotating rolls comprise grooves substantially parallel to each other and the grooves on the first and second roll cross each other when the rolls counter rotate. A truss like structure can be obtained by a roll press forming process wherein one of the two counter rotating rolls having a corrugated cross section running tangential around the surface of the roll and said corrugated surface comprises grooves which intersect, the second of the two counter rotating rolls having solely a corrugated cross section running tangential around the surface of the second roll and being complementary to the corrugated surface of the first roll.