Method for manufacturing a three-dimensional frame structure for use as a core structure in a sandwich structure and the frame structure manufactured thereby

摘要

Producing a three-dimensional framework comprises producing a two-dimensional lattice structure from rods that cross at defined points, bonding the rods together at the crossing points, softening the rods by local heating along groups of three nonintersecting straight lines, and applying force along the middle of each three straight lines. Independent claims are also included for: (1) framework for a sandwich structure produced as above; (2) aircraft with a structural component comprising a composite material with a core structure produced as above.