Method for assembling main wing made of aluminum alloy
View Patent ↗A method for assembling a main wing having an upper skin and plurality of spars is disclosed. The front spar and rear spar are fastened to a back surface of the upper skin using an adhesive agent without using rivets, whereby the front surface of the upper skin becomes smooth.
1. A method for assembling a main wing made of an aluminum alloy, comprising the steps of:
positioning an upper skin of a wing skin on a bonding cart on the basis of a first reference part disposed on a forming surface of the bonding cart;
positioning and fastening a plurality of spars via an adhesive agent on the upper skin on the basis of a second reference part disposed on the bonding cart;
covering only bonding sites of the upper skin and each of the spars with a backing film;
adhesively joining the upper skin and the spars as an upper skin assembly by pressurizing and heating the bonding sites inside an autoclave, removing the air from the inside of the backing film, and curing the adhesive agent;
disposing a lower skin of the wing skin on the upper skin assembly; and
rivet-fastening the spars of the upper skin assembly and the lower skin of the wing skin.
2. The assembly method of claim 1 , further comprising holding the spars by fastening a beam pressing jig to upper parts of the spars when the spars are positioned on and fastened to the upper skin.
3. A method for assembling a main wing made of an aluminum alloy, comprising the steps of:
positioning an upper skin of a wing skin on a bonding cart on the basis of a first reference part disposed on a forming surface of the bonding cart;
positioning and fastening a plurality of spars via an adhesive agent on the upper skin on the basis of a second reference part disposed on the bonding cart;
covering at least bonding sites of the upper skin and each of the spars with a backing film;
adhesively joining the upper skin and the spars by pressurizing and heating the bonding sites inside an autoclave, removing the air from the inside of the backing film, and curing the adhesive agent;
separating an upper skin assembly, which is composed of the bonded upper skin and the spars, from the bonding cart after the adhesive agent has cured;
positioning the upper skin assembly on an assembly jig on the basis of a third reference part disposed on the assembly jig;
rivet-fastening the upper skin assembly and a plurality of ribs after the ribs are disposed in predetermined positions on the upper skin assembly; and
rivet-fastening the upper skin assembly and lower skin after the lower skin of the wing skin has been disposed in a predetermined position with respect to the upper skin assembly to which the ribs are riveted.
4. The assembly method of claim 1 , wherein the bonding sites of the upper skin and the spars are located at a first side of the spars, and the step of rivet-fastening the spars of the upper skin assembly and the lower skin of the wing skin includes rivet-fastening the spars and the lower skin on a second side of the spars opposite to the first side of the spars.