Method for manufacturing a hot gas path component

摘要

A method for manufacturing a cooling passage in a component of a machine is described. The method may include: forming a channel 140 in a surface of the component, the channel having a predetermined configuration; forming a cover wire 150, the cover wire 150 having a predetermined configuration based on the predetermined configuration of the channel 140; nesting the cover wire 150 in the channel 140; and welding the nested cover wire 150 to the component such that the channel 140 is enclosed.