METHOD OF ATTACHING INSERTS IN VANE CAVITY

摘要

PURPOSE: A method of attaching inserts in vane cavity is provided to improve the insert ability of the inserts and the robustness of the joint connection between the inserts and the nozzle, and the repeatable manufacturing ability of the inserts. CONSTITUTION: An insert(70) containing apertures for impingement cooling a nozzle vane of a nozzle segment in a gas turbine is inserted into one end of a vane. A leading end(76) of the insert is positioned slightly past a rib(74) adjacent the opposite end of the vane through which the insert is inserted. The end of the insert is formed or swaged into conformance with the inner margin of the rib. The insert is then brazed or welded to the rib.