Investigation on cooling behavior of axially rotating heat pipe in profile grinding of turbine blade slots

Chen, Jiajia; Fu, Yucan; Qian, Ning; Jiang, Huafei; Ching, C.Y.; Ewing, D.; Dai, Chenwei

doi:10.1016/j.applthermaleng.2020.116031

Cited by 25 publications

(3 citation statements)

References 41 publications

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“…With the development of manufacturing technology of high-speed spindle and superabrasive electroplated grinding wheel, high-speed profiled grinding is gradually applied to the machining field of turbine disk slots. [54][55][56] Mantel developed a grinding method of slot by using superabrasive grinding wheel for the side rough grinding and profiled grinding wheel for the finish machining. 57 Meanwhile, the application verification of grinding Udimet 720 turbine disk slots by electroplated CBN and diamond grinding wheel was carried out.…”

Section: Profiled Grindingmentioning

confidence: 99%

A brief review on the status of machining technology of fir-tree slots on aero-engine turbine disk

Wenshuo

et al. 2022

Advances in Mechanical Engineering

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The machining precision and its consistency of turbine disk fir-tree slots have a direct influence on the performance of aero-engine rotor components. However, the structural dimensions of fir-tree slot are small, and the cutting performance of materials is extremely poor, which lead to great difficulty in machining and very few available machining methods. With the application of new materials in the aero-engines, the machining precision and quality requirements of fir-tree slots are further improved. Therefore, many research achievements on the high-efficiency, high-quality and low-cost machining technology of turbine disk fir-tree slots have been obtained. By summarizing and classifying the machining methods of aero-engine turbine disk fir-tree slots, a brief review on the characteristics of different methods are presented in detail, which provide a reference for selecting the appropriate machining method of turbine disk fir-tree slots in the field of aviation manufacturing. Meanwhile, combined with the research and application status of machining technology of turbine disk fir-tree slots, it is presented that multi-process compound machining is an effective method to realize high-efficiency, high-quality and low-cost precision machining of turbine disk fir-tree slots, such as wire electro discharge machining (wire-EDM) and profiled grinding, wire electrochemical machining (wire-ECM) and profiled grinding, wire-EDM and broaching, milling and broaching.

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Section: Profiled Grindingmentioning

confidence: 99%

A brief review on the status of machining technology of fir-tree slots on aero-engine turbine disk

Wenshuo

et al. 2022

Advances in Mechanical Engineering

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“…In addition, water as a working fluid outperformed than others due to its high thermal conductivity, high latent heat, and high thermal expansion coefficient. Chen et al 292 investigated axially RHP in the profile grinding wheel and found improved heat transfer rate with increased heat flux.…”

Section: Thermal Management Of Pem Fuel Cells and Gaps In Technologymentioning

confidence: 99%

Factors influencing the performance of PEM fuel cells: A review on performance parameters, water management, and cooling techniques

Singh

Oberoi

Singh

2021

Intl J of Energy Research

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Summary This paper addresses the effects of critical parameters that affect the performance and lifespan of proton exchange membrane (PEM) fuel cells. Amongst all, control of excess water content and dehydration in PEM fuel cells is the major issue under various operating conditions. Therefore, their effects on cathode, anode, gas diffusion layer (GDL), catalyst layer (CL), and flow channels are summarized in the initial part of this paper. Various active cooling strategies such as air cooling, liquid cooling, and phase change method to extract the waste heat from the stack are represented. The lateral part of this paper throws light on the role of heat pipes, working fluid, and the effect of the addition of nanofluid with pertinent filling ratio (FR) in cooling of PEM fuel cells. This work is intended to aid the selection of cooling methods for PEM fuel cells through the consideration of the variety of affecting parameters preceding major expenditure for wide‐scale production. In future, cost comparison associated with the cooling techniques of the fuel cell would be evaluated.

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“…Nickel-based superalloys are widely employed in extreme environments to manufacture complex components in the aero-engine and gas turbine industries due to their high thermal stability, high corrosion resistance and high strength at elevated temperatures [1][2][3]. Grinding is the main material removal process currently used to achieve final dimensional accuracy, profile accuracy, and surface integrity for these safety critical industrial applications [4][5][6][7][8][9][10]. However, due to the complex thermo-mechanical interaction between the grinding tools and the workpiece, severe plastic deformation (SPD) always takes place in the superficial layer of the workpieces, usually leading to local alterations of the microstructure (e.g.…”

Section: Introductionmentioning

confidence: 99%

Creep feed grinding induced gradient microstructures in the superficial layer of turbine blade root of single crystal nickel-based superalloy

Miao

Ding

et al. 2021

Int. J. Extrem. Manuf.

Self Cite

102

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The service performance of the turbine blade root of an aero-engine depends on the microstructures in its superficial layer. This work investigated the surface deformation structures of turbine blade root of single crystal nickel-based superalloy produced under different creep feed grinding conditions. Gradient microstructures in the superficial layer were clarified and composed of a severely deformed layer (DFL) with nano-sized grains (48–67 nm) at the topmost surface, a DFL with submicron-sized grains (66–158 nm) and micron-sized laminated structures at the subsurface, and a dislocation accumulated layer extending to the bulk material. The formation of such gradient microstructures was found to be related to the graded variations in the plastic strain and strain rate induced in the creep feed grinding process, which were as high as 6.67 and 8.17 × 107 s−1, respectively. In the current study, the evolution of surface gradient microstructures was essentially a transition process from a coarse single crystal to nano-sized grains and, simultaneously, from one orientation of a single crystal to random orientations of polycrystals, during which the dislocation slips dominated the creep feed grinding induced microstructure deformation of single crystal nickel-based superalloy.

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Investigation on cooling behavior of axially rotating heat pipe in profile grinding of turbine blade slots

Cited by 25 publications

References 41 publications

A brief review on the status of machining technology of fir-tree slots on aero-engine turbine disk

A brief review on the status of machining technology of fir-tree slots on aero-engine turbine disk

Factors influencing the performance of PEM fuel cells: A review on performance parameters, water management, and cooling techniques

Creep feed grinding induced gradient microstructures in the superficial layer of turbine blade root of single crystal nickel-based superalloy

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