Evaluation of welding characteristics for manual overlay and laser cladding materials in gas turbine blades

Kim, Hyung-Ick; Park, Hong-Sun; Koo, Jae-Mean; Seok, Chang-Sung; Yang, Sung-Ho; Kim, Moon-Young

doi:10.1007/s12206-012-0505-5

Cited by 15 publications

(5 citation statements)

References 5 publications

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“…Researchers such as Kin, Ong & Nee (2014) have discussed methods for the removal of surface and shape defects prior to material addition using processes such as turning, milling, drilling and grinding. Welding, one of the most common conventional processes, was reported by Kim et al (2012) as the method for repairing cracks on the surface of an engine block head. Bennett et al.…”

Section: Resultsmentioning

confidence: 99%

Intelligent systems for additive manufacturing-based repair in remanufacturing: a systematic review of its potential

Yusoh

Wahab

Habeeb

et al. 2021

PeerJ Computer Science

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The conventional component repair in remanufacturing involves human decision making that is influenced by several factors such as conditions of incoming cores, modes of failure, severity of damage, features and geometric complexities of cores and types of reparation required. Repair can be enhanced through automation using additive manufacturing (AM) technology. Advancements in AM have led to the development of directed energy deposition and laser cladding technology for repair of damaged parts and components. The objective of this systematic literature review is to ascertain how intelligent systems can be integrated into AM-based repair, through artificial intelligence (AI) approaches capable of supporting the nature and process of decision making during repair. The integration of intelligent systems in AM repair is expected to enhance resource utilization and repair efficiency during remanufacturing. Based on a systematic literature review of articles published during 2005–2021, the study analyses the activities of conventional repair in remanufacturing, trends in the applications of AM for repair using the current state-of-the-art technology and how AI has been deployed to facilitate repair. The study concludes with suggestions on research areas and opportunities that will further enhance the automation of component repair during remanufacturing using intelligent AM systems.

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Section: Resultsmentioning

confidence: 99%

Intelligent systems for additive manufacturing-based repair in remanufacturing: a systematic review of its potential

Yusoh

Wahab

Habeeb

et al. 2021

PeerJ Computer Science

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“…Likewise, Restoration is one of the critical activities in remanufacturing since the core components have to be reverted to their original performance [17]. In a manual restoration process, the general activities include crack repairing, overlaying of material, and welding to restore the original dimensions of parts and components [18]. Today, remanufacturing production is growing annually in many countries [19].…”

Section: Producersmentioning

confidence: 99%

“…LC technology is capable of repairing cracks by overlaying material on the affected surface [27,60,67,68,74]. The technology will ultimately replace some of the manual restoration processes [18]. However, it should be noted that products subjected to heat and stress during manufacturing will easily suffer a surface crack [93].…”

Section: Industrial Gas Turbine Burner [73]mentioning

confidence: 99%

Additive Manufacturing for Repair and Restoration in Remanufacturing: An Overview from Object Design and Systems Perspectives

2019

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Repair and restoration is an important step in remanufacturing as it ensures end-of-life products are returned to as-new condition before entering the subsequent life cycle. Currently, such processes are carried out manually by skilled workers. The advent of additive manufacturing (AM) has encouraged researchers to investigate its potential in automated repair and restoration, thus rendering it as a more effective method for remanufacturing. However, the application of this widespread technology for repair and restoration in remanufacturing is still new. This paper provides an overview of the principles and capabilities offered by the existing metal AM technology for object repair and restoration namely, direct energy deposition, powder bed fusion, and cold spray technology. Their applications in the repair and restoration of remanufacturable components are presented and discussed along with issues requiring attention from the perspectives of object design and process systems capabilities. The study provides a compilation of the challenges in AM repair and restoration, which primarily lie in the aspects of geometrical complexity, geometric dimensioning and tolerancing, material compatibility, and pre-processing requirements since it is critical for remanufacturing to restore end-of-life components to as new-condition. The paper concludes with suggestions for further works in AM restoration to enable product life cycle extension in the circular economy.

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“…Overlay welding can also be used during the repair of different mechanical parts and components [ 18 , 19 ]. Phosphor bronze is often employed in applications like sleeve bearing and cam followers [ 20 ].…”

Section: Metallurgical Aspects Of Bronze Claddingmentioning

confidence: 99%

Restoration of Worn Movable Bridge Props with Use of Bronze Claddings

et al. 2018

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This article examined the possibility of using CuSn6P claddings in sliding bearing renovation of movable pontoon bridge props. The bronze layer was welded on cylinders of the high-strength steel S355J0WP EN 10155-93, in an inert atmosphere using an automated welding method (gas tungsten arc welding). Pulsed arc welding was used to minimize the effects of heat on the cladding area, while also accounting for the differences in the physical properties of the joined metals. The sliding bearing was created in two layers. The quality of the cladding layer was evaluated by nondestructive and/or destructive tests. The quality of the surface was assessed by visual inspection (visual testing) in accordance with the EN ISO 17637 standard. The quality of the claddings was evaluated by metallographic analysis, performed using light microscopy. The microhardness values of a few weld areas were determined by Vickers tests, performed according to the EN ISO 9015–2 standard. The analyses confirmed that the welding parameters and filler material used resulted in high-quality weld joints with no internal (subsurface) or metallurgical defects.

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Evaluation of welding characteristics for manual overlay and laser cladding materials in gas turbine blades

Cited by 15 publications

References 5 publications

Intelligent systems for additive manufacturing-based repair in remanufacturing: a systematic review of its potential

Intelligent systems for additive manufacturing-based repair in remanufacturing: a systematic review of its potential

Additive Manufacturing for Repair and Restoration in Remanufacturing: An Overview from Object Design and Systems Perspectives

Restoration of Worn Movable Bridge Props with Use of Bronze Claddings

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