Advanced high pressure turbine blade repair technologies

Alfred, Irene; Nicolaus, Martin; Hermsdorf, Jörg; Kaierle, Stefan; Möhwald, Kai; Maier, Hans Jürgen; Wesling, Volker

doi:10.1016/j.procir.2018.08.097

Cited by 24 publications

(9 citation statements)

References 6 publications

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“…Improvements in part accuracy achieved through the evolution of additive processes have made repairing economically feasible, enabling the part geometry to be refurbished to its correct dimensions and facilitating its remanufacturing design [22]. AM techniques can potentially be applied in remanufacturing operations, and some application cases include Gas turbine components [23]; [24]; [25]; [26]. Aerospace [27]; [28]; [29]; [30].…”

Section: Introductionmentioning

confidence: 99%

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The Remanufacture of a Complex Part Using Hybrid Manufacturing (HM))

Rios

Ferreira

Mariani

et al. 2021

Preprint

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The industrial importance of repair and remanufacturing processes has significantly increased over the past years, primarily due to their possible cost reductions and environmental benefits. Different techniques have been used for the development of such tasks in different areas, however, restrictions have been encountered in parts of high geometric complexity or those that require high mechanical performance. Additive Manufacturing (AM) technologies are an interesting alternative for remanufacturing, due to their advantageous mechanical properties and possible application in operations involving complex geometries. Hybrid Manufacturing (HM) technologies, which combine the advantages of AM processes with CNC machining in the same machine, have arisen as a new method that modernizes the repair and remanufacturing of metal components and offers a range of possible combinations of materials. This article addresses a remanufacturing operation that involves the use of an HM applied to an AISI 1045 component repaired with the addition of AISI 316L steel. The properties of the final parts showed the viability of the process for the remanufacturing of components of different materials and complex geometry. The parameters and strategy employed for the deposition of the additive material allowed us to obtain a piece without significant porosity, cracks, or defects. Microstructure and hardness in the sample were like those obtained in other published works. The manufacture or remanufacturing of components by the Directed Energy Deposition process employing stainless steel deposition on top of carbon steels opens a wide range of new applications. Those include the deposition and machining of complex 3D geometries

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Section: Introductionmentioning

confidence: 99%

“…AM techniques can potentially be applied in remanufacturing operations, and some application cases include Gas turbine components [23]; [24]; [25]; [26]. Aerospace [27]; [28]; [29]; [30].…”

Section: Introductionmentioning

confidence: 99%

The Remanufacture of a Complex Part Using Hybrid Manufacturing (HM))

Rios

Ferreira

Mariani

et al. 2021

Preprint

View full text Add to dashboard Cite

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“…According to material feed-in methods, LAM can be divided into powder spreading type selective laser melting [ 25 ] and powder feeding type laser melting deposition [ 10 , 11 , 26 ]. Laser melting deposition technology is also called laser cladding (LC), which uses a high-power laser to melt powder and/or wire, and substrate together to obtain a cladding layer with good metallurgical bonding performance [ 2 , 27 ]. Due to the high-quality characteristics of low porosity, low dilution ratio, and crack-free, laser cladding has been widely used to prepare various high-performance composite cladding layers [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Wear Resistance of Multi-Layer Ni-Based Alloy Cladding Coating on 316L SS under Different Laser Power

Dai

Guo

et al. 2021

Materials

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We prepared three kinds of Ni based alloy cladding coatings on 316L stainless steel at different power levels. The microstructure of the cladding layer was observed and analyzed by XRD, metallographic microscope, and SEM. The hardness of the cladding layer was measured, and the wear resistance of it was tested by a friction instrument. The results show that the effect of laser cladding is good, and it has good metallurgical bonding with the substrate. Different microstructures such as dendritic and equiaxed grains can be observed in the cladding layer. With the increase in laser power, more equiaxed and columnar dendrites can be observed. The phase composition of the cladding layer is mainly composed of γ–Ni solid solution and some intermetallic compounds such as Ni3B, Cr5B3, and Ni17Si3. The results of EDS show that there are some differences in the distribution of C and Si between dendrites. The hardness of the cladding layer is about 600 HV0.2, which is about three times of the substrate (~200 HV0.2). Through the analysis of the wear morphology, the substrate wear is serious, there are serious shedding, mainly adhesive wear, and abrasive wear. However, the wear of the cladding layer is slight, which is abrasive wear, and there are some grooves on the surface.

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“…The emergence of Laser Cladding Technology (LC) overcomes these shortcomings. Laser cladding (LC) technology is a kind of additive (AM) manufacturing process, also known as direct metal deposition, which uses high-power laser to melt powder / wire and substrate together to obtain cladding layer with good metallurgical bonding performance [2,22,23]. Due to the high quality characteristics of low porosity, low dilution ratio and crack free, laser cladding has been widely used to prepare various high-performance composite cladding layers [24].…”

Section: Introductionmentioning

confidence: 99%

Microstructure and Wear Resistance of Multi-Layer NI-Based Alloy Cladding Coating on 316l SS Under Different Laser Power

Su¹,

Zhang²,

Dai³

et al. 2020

Preprint

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Three kinds of Ni based alloy cladding coatings were prepared on 316L stainless steel at different power. The microstructure of the cladding layer was observed and analyzed by XRD, metallographic microscope and SEM. The hardness of the cladding layer was measured, and the wear resistance of the cladding layer was tested by friction instrument. The results show that the effect of laser cladding is good and the cladding layer has a good metallurgical bonding with the substrate. Different microstructures such as dendritic and equiaxed grains can be observed in the cladding layer. With the increase of laser power, more equiaxed and columnar dendrites can be observed. The phase composition of the cladding layer is mainly composed of γ - Ni solid solution and some intermetallic compounds such as Ni3B, Cr5B3 and Ni17Si3. The results of EDS show that there are some differences in the distribution of C and Si between dendrites. The hardness of the cladding layer is about 600 HV0.2, which is about three times of the substrate (~ 200 HV0.2). Through the analysis of the wear morphology, the substrate wear is serious, there are serious shedding, mainly adhesive wear and abrasive wear. However, the wear of cladding layer is slight, which is abrasive wear, and there are some grooves on the surface.

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Advanced high pressure turbine blade repair technologies

Cited by 24 publications

References 6 publications

The Remanufacture of a Complex Part Using Hybrid Manufacturing (HM))

The Remanufacture of a Complex Part Using Hybrid Manufacturing (HM))

Microstructure and Wear Resistance of Multi-Layer Ni-Based Alloy Cladding Coating on 316L SS under Different Laser Power

Microstructure and Wear Resistance of Multi-Layer NI-Based Alloy Cladding Coating on 316l SS Under Different Laser Power

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