METHOD FOR MAKING AND REPAIRING EFFUSION COOLING HOLES IN COMBUSTOR LINER

摘要

A method for making or repairing a laser drilled hole in a component of gasturbine engines, to meet requirements of air flow through the hole, includesdeformation of an excess material melted during the laser drilling process andremaining around an opening end of the hole, thereby causing a marginalreduction inan effective diameter of the hole.