A method of manufacturing an airfoil includes the steps of depositing multiple layers of powdered metal onto one another. The layers are joined to one another with reference to CAD data relating to a particular cross-section of an airfoil. The airfoil is produced with leading and trailing edges joined by spaced apart pressure and suction sides to provide an exterior airfoil surface. An exterior wall provides the exterior airfoil surface at the leading edge. An impingement wall is integrally formed with the exterior wall to provide an impingement cavity between the exterior wall and the impingement wall. Multiple impingement holes are provided in the impingement wall. The impingement holes are spaced laterally across the impingement wall.
申请公布号
EP2841701(A4)
申请公布日期
2016.07.20
申请号
EP20130781545
申请日期
2013.04.19
申请人
UNITED TECHNOLOGIES CORPORATION
发明人
PROPHETER-HINCKLEY, TRACY A.;ZELESKY, MARK F.;MONGILLO, JR., DOMINIC J.;DEVORE, MATTHEW A.;GAUTSCHI, STEVEN BRUCE;FISK, BENJAMIN T.