Method for the production of a connecting element, connecting element, and aircraft or spacecraft

The invention relates to a method for the production of a connecting element for connecting at least two components of an aircraft or spacecraft structure, in particular for connecting a frame to a skin and/or to a stringer. A hollow initial profile is formed which comprises a wall that follows a closed path in a cross-section of the initial profile. The wall is formed with a first, a second and a third section provided along the closed path. Material is removed which initially forms part of the wall in at least one region of the initial profile, so as to obtain at least one opening in the at least one region, the at least one opening extending at least partially within the first section. A portion of the second section and a portion of the third section form part of the connecting element to be produced and are each formed so as to be adapted, when the connecting element is finished, to at least partially abut against a respective component of the structure. The formation of the at least one opening is performed in such a manner that material initially forming part of the wall in the first section and remaining after the formation of the at least one opening forms at least one stabilizing section that connects the portions of the second and third sections. The invention also relates to connecting elements and to an aircraft or spacecraft.