FRICTION PLUG WELDING method FOR HOLE IN METAL PART, USE OF A RESTRAINT PART AND A SUPPORTING PART FOR IMPLEMENTING THE METHOD

摘要

The invention relates to the plug friction welding method for hole (2) extending globally along axis (5) of metal part (1), failing any clearance space for access along axis (5) of hole (2) in view of presence of, at least, one obstacle (6) along this axis (5), at which the metal bar (3) extending globally along axis (4) is rotated around its axis (4) and inserted into hole (2) for friction welding. The method, which is the object of invention, is characterized by the fact that axis (4) of bar (3) is inclined with respect to axis (5) of hole (2) of the nonzero angle (α) to avoid the obstacle (6). Thus, due to the method, which is the object of invention, it is possible to obtain access to holes (2) almost inaccessible in the direction of axis (4) of bar (3).