Challenges DRISHTI
Elimination of rivet sinking in aircraft structural components
Fuselage & structural assemblies of aircraft like wings, stabilizer, airbrake, canard etc. are riveted structures in fighter aircraft. In these structural assemblies, detail partslike skin, stringers, brackets, ribs, etc. are joined together by fasteners. Riveted joints are designed depending on the type of requirement, possible method of installation of rivets in structures and desired strength. In Russian origin aircraft, rivets are manufactured mainly from aluminium and steel alloys. During exploitation of aircraft, sinking (enlargement of c’sk hole) of heads of rivets with countersunk used for making joint of external skins are reported in different zones of aircraft.