Low-pressure turbine blade leading edge protection using robotic laser cladding technology

Low-pressure turbine blades are the most erosion-exposed moving parts of the steam turbine. This article brings a detailed overview of an innovative system applying a stellite coating to the leading edge of the steam turbine blades using the robotic laser cladding technology. The system is based on...

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Bibliographic Details
Published in:International journal of advanced manufacturing technology 2022-09, Vol.122 (5-6), p.2543-2559
Main Authors: Vaníček, Ondřej, Chaluš, Michal, Liška, Jindřich, Glusa, Tomáš, Vlasák, Jakub, Vašíčková, Eva, Brom, Karel
Format: Article
Language:English
Subjects:
Algorithms
CAE) and Design
Collision avoidance
Computer-Aided Engineering (CAD
Engineering
Industrial and Production Engineering
Laser beam cladding
Lasers
Leading edges
Low pressure
Mechanical Engineering
Media Management
Navigation
Original Article
Steam turbines
Thickness
Three dimensional models
Turbine blades
Turbines
Workpieces
Citations: Items that this one cites
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Description
Summary:Low-pressure turbine blades are the most erosion-exposed moving parts of the steam turbine. This article brings a detailed overview of an innovative system applying a stellite coating to the leading edge of the steam turbine blades using the robotic laser cladding technology. The system is based on a software that gathers scanned data of the shape-specific workpiece from a laser profile scanner, creates a 3D model of the workpiece and generates a set of laser cladding trajectories that are used for the task of robot navigation during the laser cladding process. The navigation algorithm accounts for the workpiece-specific requirements of the laser cladding process as well as collision avoidance necessities. The shape and thickness of the resulting layer of the laser-cladded coating alloy are verified by an external 3D scanning system showing the compliance of the system with the requirements as well as a space for future development. The feasibility of the developed method is also verified by multiple material and metallographic tests.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-022-10006-8