Integrated rapid 3D mapping and laser additive repair of gas turbine engine components

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Proceedings title2013 ICALEO Conference Proceedings
Conference32nd International Congress on Applications of Lasers and Electro-Optics (ICALEO), 2013, Miami FL, USA
Pages318325; # of pages: 8
AbstractNational Research Council Canada (NRC) has developed precision laser additive repair of worn gas turbine components. The repair system uses integrated 3D mapping and laser additive deposition. The integrated inspection and repair system is capable of inspecting and repairing a worn gas turbine injector in less than one hour. This innovative system dramatically improves repair time and cost of high value gas turbine components. In this paper, a case study will be presented as a joint effort by NRC and UTC Aerospace Systems to evaluate the feasibility of repair of worn fuel injectors from a land based gas turbine engine. The project evaluated the use of laser cladding of cobolt alloy L-605 for repair of worn engine components on a Rolls Royce 501K engine. Test results reveals that laser clad L-605 on wrought L-605 substrate demonstrates comparable or even substantially improved fatigue life as compared to the baseline L-605 specimens at elevated temperature. Laser clad L-605 also shows comparable wear resistance. The paper will demonstrate the improved repair of the fuel injectors via laser cladding repair and the metallurgical evaluation of the repair. The paper documents the improvement of the repair from several weeks and fabrication of several placement componenets to a matter of only a few hours to inspect and repair using the NRC laser additive manufacturing system.
Publication date
AffiliationAutomotive and Surface Transportation; National Research Council Canada
Peer reviewedYes
NPARC number21273922
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Record identifier1ecdfa54-b18e-40c1-b9a6-224570922c33
Record created2015-02-03
Record modified2016-05-09
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