Method of making a sandwich-type composite panel having a hinge, and panel obtained by performing such method

摘要

The invention relates to a method of making a composite panel ( 100 ) of sandwich structure and provided with a hinge ( 106 ), said panel comprising a stack made up of at least one first skin ( 101 ) made of a reinforced thermoplastics material, of a cellular core ( 102 ) made of a thermoplastics material, and of a second skin ( 103 ) made of a thermoplastics material, in which method said panel ( 100 ) is formed by pressing said stack at a pressure lying in the range 10x10⁵ Pa to 30x10⁵ Pa, the first and second skins ( 101, 103 ) being preheated to a softening temperature. The invention is characterized in that, after said panel has been formed, an incision is made at a determined place in said panel so as to cut through one ( 101 ) of the first and second skins ( 101, 103 ), and substantially through the entire thickness of the cellular core, while leaving the other skin ( 103 ) intact so that it forms, at said place, the hinge ( 106 ) between two portions ( 107, 108 ) of the incised panel ( 100 ).