METHOD FOR WELDING TOGETHER STRUCTURAL COMPONENTS AND ROTOR PRODUCED ACCORDING TO SAID METHOD

摘要

The invention concerns a method for welding a first component ( 1 ) that is made of a superalloy on nickel, ferronickel or cobalt basis, to a second component ( 2 ) that is made of high-alloy, high-temperature steel. The method is characterized in that first an intermediate piece ( 5 ) made of high-temperature steel is attached to the welding surface ( 6 ) of the first component ( 1 ) by means of friction welding and by welding the intermediate piece ( 5 ) onto the first component ( 1 ) while exerting force (F) on and simultaneously turning the intermediate piece ( 5 ) and that the first component ( 1 ) with the intermediate piece ( 5 ) then is welded to the second high-temperature steel component ( 2 ) by means of a known fusion welding method.