Patent ID: 11883874
Assignee: SAFRAN NACELLES
Field: Machine tools (Mechanical engineering)
Classification: CPC B  F  Y | IPC B

Claim 1:
2. The method according to claim 1, wherein the step of assembling the first corrugated skin and the second smooth skin is carried out by friction stir welding according to a set of parameters comprising:
use of a cylindrical tool including a retractable pin with a diameter of 2 mm to 5 mm and a length of 1 mm to 5 mm so that the retractable pin penetrates into the first corrugated skin and in half a total thickness of the second smooth skin;
application of a contact pressure between the first corrugated skin and the second smooth skin of 1 kN to 5 kN, via a pressure device that includes the cylindrical tool;
clamping the first corrugated skin and the second smooth skin via a movable clamping device;
tool rotation speed of 500 rpm to 1500 rpm;
inclination of the cylindrical tool of 1° to 5° with respect to a plane normal to the first corrugated skin and the second smooth skin; and
tool advance speed of 100 mm/min to 700 mm/min.