Laser Peening of Turbine Engine Integrally Blade Rotor

Shikun, 邹世坤 Zou; Shuili, 巩水利 Gong; Enming, 郭恩明 Guo; Bin, 李斌 Li

doi:10.3788/cjl201138.0601009

Cited by 7 publications

(5 citation statements)

References 0 publications

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“…Zou et al [ 183 ] pointed out that some technical challenges remain in the implementation of LSP on IBRs. The first is how to conduct LSP on a concealed surface.…”

Section: Challenges Associated With the Application Of Lsp For Treati...mentioning

confidence: 99%

“…Unlike an open surface, it is difficult to shock the concealed surface of an IBR. [ 183 ] At the current time, the presence of a concealed surface has become the most important factor restricting the efficiency of LSP when treating IBRs. When using high‐inclination laser incidence technology, the inclination angle (i.e., the angle between the laser beam and the normal direction of the area to be strengthened) is generally set to an angle of 60° or less, as an excessive tilt angle will cause serious distortion of the light spot and will result in energy loss.…”

Section: Challenges Associated With the Application Of Lsp For Treati...mentioning

confidence: 99%

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A Critical Review of Laser Shock Peening of Aircraft Engine Components

Huang

Zou³

et al. 2023

Adv Eng Mater

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Many aviation accidents are caused by the failure of aircraft engine components, and engine blades are especially vulnerable to high‐cycle fatigue fracture in severe working environments as well as to impact damage caused by foreign objects. To address this problem, the United States took the lead and has been successful in implementing laser shock peening (LSP) as a surface treatment for aircraft engine components to enhance their fatigue performance. This review provides an overview of the development of LSP for use in treating aircraft engine components over the past three decades, with a brief introduction to the development of high‐energy pulsed lasers for LSP. A particular focus of this review is on the limitations and challenges associated with the application of LSP for treating critical aircraft engine components. It is hoped that this review serves as a reference for future research and development that can lead to better performance of these components.

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“…Zou et al [ 183 ] pointed out that some technical challenges remain in the implementation of LSP on IBRs. The first is how to conduct LSP on a concealed surface.…”

Section: Challenges Associated With the Application Of Lsp For Treati...mentioning

confidence: 99%

Section: Challenges Associated With the Application Of Lsp For Treati...mentioning

confidence: 99%

A Critical Review of Laser Shock Peening of Aircraft Engine Components

Huang

Zou³

et al. 2023

Adv Eng Mater

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“…Therefore, the blade root, blade tip, and leading edge are the key areas to be strengthened [60], as shown in Fig. 12(a).…”

Section: Surface Strengthening Technologies For Integral Impeller Andmentioning

confidence: 99%

Machining the Integral Impeller and Blisk of Aero-Engines: A Review of Surface Finishing and Strengthening Technologies

Gao

Wang

et al. 2017

Chin. J. Mech. Eng.

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The integral impeller and blisk of an aero-engine are high performance parts with complex structure and made of difficult-to-cut materials. The blade surfaces of the integral impeller and blisk are functional surfaces for power transmission, and their surface integrity has significant effects on the aerodynamic efficiency and service life of an aero-engine. Thus, it is indispensable to finish and strengthen the blades before use. This paper presents a comprehensive literature review of studies on finishing and strengthening technologies for the impeller and blisk of aero-engines. The review includes independent and integrated finishing and strengthening technologies and discusses advanced rotational abrasive flow machining with back-pressure used for finishing the integral impeller and blisk. A brief assessment of future research problems and directions is also presented.

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“…For example, the high incidence of failures in fan/compressor blades, thin-walled weldments, and hightemperature turbine blades [1] greatly affects the safety and reliability of aircraft operations as shown in Figure 1. Understanding how to improve the fatigue performance of important components of aeroengines has become a vital technical problem that needs to be solved at home and abroad [2][3][4]. surface modification (UNSM) [10], etc.…”

Section: Introductionmentioning

confidence: 99%

Review on Anti-Fatigue Performance of Gradient Microstructures in Metallic Components by Laser Shock Peening

Yang

Liu

Zhou

et al. 2023

Metals

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Laser-shock-peening technology is an international research hotspot in the surface-strengthening field, which utilizes the mechanical effects of laser-induced plasma shock waves to effectively improve the fatigue performance of metallic components by introducing the gradient microstructures and compressive residual stress into the surface layer of processed materials. The fatigue failure caused by high-frequency vibrations in aeroengines during service is the most important threat to flight safety, and this case is more prominent for military aeroengines because their service situation is harsher. The present paper focuses on components such as high-temperature components, fan/compressor blade, and thin-walled weldments, and it systematically introduces the researching findings about surface nanocrystallization and compressive residual stress formation mechanism in typical aeronautical metallic materials treated by laser shock peening. The contents mainly involve the characteristics, formation process, fatigue resistance mechanism, thermal stability of residual compressive stress, and nanocrystallization generated by laser shock peening.

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Laser Peening of Turbine Engine Integrally Blade Rotor

Cited by 7 publications

References 0 publications

A Critical Review of Laser Shock Peening of Aircraft Engine Components

A Critical Review of Laser Shock Peening of Aircraft Engine Components

Machining the Integral Impeller and Blisk of Aero-Engines: A Review of Surface Finishing and Strengthening Technologies

Review on Anti-Fatigue Performance of Gradient Microstructures in Metallic Components by Laser Shock Peening

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