| Author | Search for: Xue, Lijue1; Search for: Donovan, Matt; Search for: Li, Yangsheng1; Search for: Chen, Jianyin1; Search for: Wang, Shaodong1; Search for: Campbell, Glen1 |
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| Affiliation | - National Research Council of Canada. Automotive and Surface Transportation
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| Format | Text, Article |
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| Conference | 32nd International Congress on Applications of Lasers and Electro-Optics (ICALEO), 2013, Miami FL, USA |
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| Abstract | National 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. |
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| Publication date | 2013 |
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| In | |
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| Note | On CD-ROM |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21273922 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 1ecdfa54-b18e-40c1-b9a6-224570922c33 |
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| Record created | 2015-02-03 |
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| Record modified | 2020-04-22 |
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