Abstract:
In order to be able to reduce the time and cost required for final assembly of an aircraft, a junction rib designed for the wing-central wingbox junction comprises a central web and an upper flange and a lower flange which extend from the main web, on a first side, the main web having a junction surface arranged on a second side opposite the first side, the main web including rows of orifices opening on the second side in the junction surface and on the first side, comprising a first row of orifices and a third row of orifices formed in an upper part of the main web on either side of the upper flange, and a second row of orifices formed in a lower portion of the main web, each one of the rows of orifices comprising orifices in a free state.
Abstract:
A method for producing a central wing box including an upper panel, a lower panel, a front longeron, a rear longeron and four corners, wherein at least one panel and one longeron are obtained from a single flat metal wall which is bent along a bending line at approximately 90° which corresponds to a corner connecting said panel to said longeron.
Abstract:
A method for disassembling two ultrasonically welded elements, one of the elements comprising, at a surface opposite the other element, an energy director that concentrates the heating during ultrasonic welding and forms a material junction between the two assembled elements after the ultrasonic welding. The method includes the steps of positioning a wire between the two assembled elements, so as to be secant to the energy director, said wire having suitable mechanical characteristics allowing it to cut the junction formed by the energy director and moving the wire between the two assembled elements so as to cut said junction.
Abstract:
A method for disassembling two ultrasonically welded elements, one of the elements comprising, at a surface opposite the other element, an energy director that concentrates the heating during ultrasonic welding and forms a material junction between the two assembled elements after the ultrasonic welding. The method includes the steps of positioning a wire between the two assembled elements, so as to be secant to the energy director, said wire having suitable mechanical characteristics allowing it to cut the junction formed by the energy director and moving the wire between the two assembled elements so as to cut said junction.