Method for making hollow stiffening elements

摘要

Method for making hollow stiffening elements with co-curing technique on a structure made of composite material 1 comprising the use of at least a lamination and polymerization spindle 2 upon which it is positioned at least a rolled section 3. This rolled section 3 forms at least a hollow structure 11 where there is the spindle 2, comprising the following operational phases: coating the spindle 2 with at least a first anti-adherent layer 41; coating the spindle 2 with at least a second heat-shrinking layer 42; heating the coated spindle 2; positioning the spindle 2 on the surface of the structure 1; laminating the surface 1 through at least a rolled section 3; heating the structure 1 with at least a positioned rolled section 3; extracting the spindle 2 from the hollow structure 11.