Some aspects of laser surface cladding in the turbine industry

Kathuria, Y.P.

doi:10.1016/s0257-8972(00)00735-0

Cited by 188 publications

(74 citation statements)

References 7 publications

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“…Also, flexibility of the process, which allows using the metal powder and wire in the capacity of filler, must be mentioned here [5][6][7].…”

Section: Laser Technologies Of Repair Cladding Of Gte Operating Bladesmentioning

confidence: 99%

“…Общая концепция комплекса представлена на рис.6. В состав комплекса входят: волокон-ный лазер мощностью 700 Вт (1), система управ-ления (2), система водяного охлаждения (3), про-мышленный робот-манипулятор (4), лазерная наплавочная головка (5), порошковый питатель (6). Особое внимание при разработке комплекса будет уделено созданию сопловой части техно-логической головки, позволяющей обеспечить коэффициент использования наплавляемого порошка не менее 0,5 при ширине наплавлен-ных валиков 0,8-1,5 (2) мм.…”

Section: Fig 4 Cracks and Porosity In Built-up Layer On The Blade Ounclassified

“…6. The complex has the following components: fiber laser with the capacity of 700 W (1), control system (2), water cooling system (3), industrial robotic manipulator (4), laser cladding head (5) and powder feeder (6).…”

Section: Development Of Domestic Technological Complex For Restoratiomentioning

confidence: 99%

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Prospects of Use of Laser Cladding Technology for Restoration of Compressor Blades of Gas Turbine Engines

Zemlyakov¹,

Babkin²,

Korsmik³

et al. 2016

FRos

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Laser cladding as technology of repair operations is in demand for the restoration of the parts, which were operated in aggressive media and subjected to surface wear. It is applicable to the machines and mechanisms, which are used in engine building, nuclear power engineering, petrochemical production, mineral resource and metal-working industries. Analysis of technologies and equipment for the restoration of compressor blades of gas turbine engines and steam generators applied in the world practice is given. The domestic complex of laser cladding is suggested. Against the background of domestic complexes it is distinguished by the presence of cassette accessories, which allows easy transition from single-piece cladding to automated cladding of the set of one-type blades.

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“…Also, flexibility of the process, which allows using the metal powder and wire in the capacity of filler, must be mentioned here [5][6][7].…”

Section: Laser Technologies Of Repair Cladding Of Gte Operating Bladesmentioning

confidence: 99%

Section: Fig 4 Cracks and Porosity In Built-up Layer On The Blade Ounclassified

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Prospects of Use of Laser Cladding Technology for Restoration of Compressor Blades of Gas Turbine Engines

Zemlyakov¹,

Babkin²,

Korsmik³

et al. 2016

FRos

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“…Las ventajas del mé-todo incluyen una mínima dilución, baja y controlable entrada de calor en el substrato, gran flexibilidad de procesado y reducida distorsión [2 y 3] . Normalmente, para llevar a cabo el proceso se emplean fuentes láser de CO 2 y de Nd:YAG en régimen de funcionamiento continuo, si bien, en los últimos años, se están empleando las nuevas fuentes de diodos (HPDL), disco y fibra de alta potencia, así como lá-seres pulsados, con duraciones de pulso del orden de varios milisegundos [4][5][6] . Comparado con otras técni-cas convencionales de deposición, como, soldadura TIG (Tungsten Inert Gas), proyección por arco de plasma o proyección HVOF (High Velocity Oxygen Fuel), la técnica de plaqueado láser produce cordones O Op pt ti im mi i z za ac ci ió ón n d de el l p pr ro o c ce es so o d de e a ap po o r r t te e d de e r re ec cu ub b r ri im m i ie en nt to os s a an nt ti i--c co or rr ro os si ió ón n d de e S St te el ll li it te e 6 6 p pr ro od du uc ci id do os s m me ed di ia an nt te e p pl la aq qu ue ea ad do o l lá ás se er r ( (• •) ) I. Vicario * , C. Soriano * , C. Sanz * , R. Bayón * y J. Leunda *…”

Section: I In Nt Tr Ro Od Du Uc Cc Ci Ió óN Nunclassified

Optimización del proceso de aporte de recubrimientos anticorrosión de Stellite 6 producidos mediante plaqueado láser

Vicario¹,

Soriano²,

Sanz³

et al. 2009

Rev. metal.

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Palabras clavePlaqueado laser; Corrosión; Stellite 6.O Op pt ti im mi iz za at ti io on n o of f t th he e d de ep po os si it ti io on n p pr ro oc ce es ss s o of f c co or rr ro os si io on n r re es si is st ta an nt t S St te el ll li it te e 6 6 c co oa at ti in ng gs s p pr ro od du uc ce ed d b by y l la as se er r c cl la ad dd di in ng g AbstractLaser cladding is one of the most efficient surface treatment technologies in the industry. It uses a laser heat source to deposit a thin layer of a desired material on a moving substrate, whose properties have to be improved, achieving a metallurgical bonding between them with low heat affected zone and low dilution, compared to other conventional technologies such as PTA, TIG welding or thermal Spraying. In this sense, it is remarkable that there are 3 main application fields for laser cladding technology: restoration or refurbishment of damaged parts, surface coating against corrosion or wear, and rapid prototyping. The present work describes a study of the optimization of the laser cladding of Co based coatings (Diamalloy 4060NS) on medium carbon steel C45 (AISI 1045). After laser treatment, the surface of the substrate material is improved in terms of resistance against corrosion; this is confirmed in the analysis performed afterwards. It is also shown that the corrosion barrier properties have direct correlation with the laser cladding variables.

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“…This method of surface modi cation can be used to reinforce local surfaces in machine guide ways and in various wear resistance applications. TIG surface alloying associated with rapid heating and cooling rate provided a unique opportunity for the non-equilibrium synthesis of materials and produced rapidly solidi ed ne microstructures with extended solid solution of alloying elements [17,18].…”

Section: Introductionmentioning

confidence: 99%

Characterization of Fe-Nb-B Base Hardfacing of Steel

Kılınç

Çeğil²,

Abakay

et al. 2014

Acta Phys. Pol. A

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Recently hardfacing by welding has become a commonly used technique for improvement of material performance in extreme (high temperature, impact/abrasion, erosion, etc.) conditions. In the present study, three di erent alloy compositions of the Fe Nb B were used for hardfacing of the AISI 1020 steel by tungsten inert gas welding process and analyzed. The coatings were produced from a mixture of ferrous niobium, ferrous boron and iron powders in the range of −45 µm particle size with di erent ratio. The coatings' thickness was set to 2 3 mm on the substrate. Microstructure, phase analysis and hardness of the manufactured hardfacing alloys were characterized. Deposition results indicate good quality thick coating and porosity free of the hardfacings. X-ray di raction analyses showed that the alloyed layers include iron borides, FeNbB and iron phases. It was shown that surface alloyed layer has composite structure including steel matrix and well distributed boride phases.

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Some aspects of laser surface cladding in the turbine industry

Cited by 188 publications

References 7 publications

Prospects of Use of Laser Cladding Technology for Restoration of Compressor Blades of Gas Turbine Engines

Prospects of Use of Laser Cladding Technology for Restoration of Compressor Blades of Gas Turbine Engines

Optimización del proceso de aporte de recubrimientos anticorrosión de Stellite 6 producidos mediante plaqueado láser

Characterization of Fe-Nb-B Base Hardfacing of Steel

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