A method for fabricating a three-dimensional frame structure for use as a central frame in a sandwich construction and frame frame fabricated therefrom.

摘要

METHOD FOR MANUFACTURING A THREE-DIMENSIONAL FRAMEWORK STRUCTURE FOR USE AS A CENTRAL STRUCTURE IN A SANDWICH CONSTRUCTION AND FRAME STRUCTURE MADE FROM THE SAME The present invention relates to a method for manufacturing a three-dimensional frame structure that can be used as a central structure in a sandwich construction. Furthermore, the invention relates to a frame structure for a sandwich construction, the frame structure of which has been manufactured according to the method according to the invention. In the method, a two-dimensional truss structure (1) is designed from linear semi-finished products in a bar shape (2, 3), where the structure and semi-finished products (2,3) intersect in intersection points (4) defined; bar-shaped linear semi-finished products (2,3) are connected at the intersection points (4) and are softened by the local application of heat next to the truss structure (1) in each situation along the three straight lines (5.6) that do not intersect (imaginary). In order to give a three-dimensional shape next to the truss structure (1), a force (F) is introduced in the truss structure (1) along the intermediate line of one of the straight lines (5,6 ) (imaginary) where heat is being applied, where, as a result of the deformation of the truss structure, the introduced force F is deflected in pairs of tensile forces acting on the semi-finished products, resulting in the truss structure ( 1) is taken to a third dimension, along the intermediate (imaginary) straight line (5.6) to which heat has been applied.