公开(公告)号：US20180281006A1

公开(公告)日：2018-10-04

申请号：US15661759

申请日：2017-07-27

Applicant: GENERAL ELECTRIC COMPANY

Inventor： Kemal Mehmet COSKUN ,  Cem Murat EMINOGLU ,  Yusuf Eren OZTURK ,  Tyler Watson KASPERSKI

IPC: B05B15/04 ,  F01D5/18 ,  C23C4/02

CPC classification number: B05B12/26 ,  B25J11/0075 ,  C23C4/02 ,  F01D5/186 ,  F01D5/187 ,  F05D2230/311 ,  F05D2230/60 ,  F05D2230/90 ,  F05D2260/202

Abstract: A method for masking cooling passages of a turbine component having an external surface, an internal cavity for receiving cooling air, and cooling passages extending therebetween. The location and angle of cooling passages are determined using a robotic arm and a location system. A masking device is placed in the cooling passages located during the locating step. The masking device includes a head portion having a gripping feature for gripping by a robotic arm, and a locating feature for orientation of the masking device by the robotic arm. A retaining portion extending from the head portion is arranged and disposed to retain the masking device in a cooling passage. The retaining portion is narrower proximate a distal end than proximate the head portion. The component and head portion of the masking devices are coated. The masking devices may be removed using the robotic arm and locating system.