Analysis on Machining Performance of Nickel-Base Superalloy by Electrochemical Micro-milling with High-Speed Spiral Electrode

Liu, Yong; Xu, Xia; Guo, Chunsheng; Kong, Huanghai

doi:10.3390/mi10070476

Cited by 10 publications

(5 citation statements)

References 19 publications

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“…5g). The negative pressure absorbs fresh electrolytes and pours them into the processing area along the sidewalls (Liu et al, 2019b). With the spiral micro tools, micro holes with maximum aspect ratios of up to 8 were processed.…”

Section: Tool Designs For Facilitating Electrolyte Flow and Removing ...mentioning

confidence: 99%

Tooling aspects of micro electrochemical machining (ECM) technology: Design, functionality, and fabrication routes

Liu,

Karim,

Arshad

et al. 2023

Journal of Materials Processing Technology

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Section: Tool Designs For Facilitating Electrolyte Flow and Removing ...mentioning

confidence: 99%

Tooling aspects of micro electrochemical machining (ECM) technology: Design, functionality, and fabrication routes

Liu,

Karim,

Arshad

et al. 2023

Journal of Materials Processing Technology

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“…Ye et al [ 15 ] used tube electrodes with different oblique angles to generate pulsating flow field in the electrochemical processing area, so that a micro-groove with a depth of 5 mm was stably machined on the surface of GH4169 alloy at one time. Liu et al [ 16 ] established the electric field and flow field models of electrochemical milling by using the spiral micro-electrode, analyzed the influence of flow field and electric field on micro-structure forming, and successfully processed a series of complex micro-structures on the surface of Inconel 718. Huang et al [ 17 ] successfully processed high-precision micro-structures on the surface of nickel-based alloy on ECM of nanosecond pulse.…”

Section: Introductionmentioning

confidence: 99%

Anodic Dissolution Characteristics of GH4169 Alloy in NaNO3 Solutions by Roll-Print Mask Electrochemical Machining Using the Linear Cathode

Qin,

Li,

Han

et al. 2024

Materials

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GH4169 alloy/Inconel 718 is extensively utilized in aerospace manufacturing due to its excellent high temperature mechanical properties. Micro-structuring on the workpiece surface can enhance its properties further. Through-mask electrochemical micromachining (TMEMM) is a promising and potential processing method for nickel-based superalloys. It can effectively solve the problem that traditional processing methods are difficult to achieve large-scale, high-precision and efficiency processing of surface micro-structure. This study explores the feasibility of electrochemical machining (ECM) for GH4169 using roll-print mask electrochemical machining with a linear cathode. Electrochemical dissolution characteristics of GH4169 alloy were analyzed in various electrolyte solutions and concentrations. Key parameters including cathode sizes, applied voltage and corrosion time were studied in the roll-print mask electrochemical machining. A qualitative model for micro-pit formation on GH4169 was established. Optimal parameters were determined through experiments: 300 μm mask hole and cathode size, 10 wt% NaNO3 electrolyte, 12 V voltage, 6 s corrosion time. The results demonstrate that the micro-pits with a diameter of 402.3 μm, depth of 92.8 μm and etch factor (EF) of 1.81 show an excellent profile and localization.

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“…Ye et al [ 22 ] used a wedged end tube tool for electrochemical milling the deep and narrow groove of GH4169 nickel-based alloy and explored the wedge angle of the cutting tool to improve the electrolyte flowed field and machining quality through simulation. Liu et al [ 23 , 24 ] explored the machining characteristics of micro-milling with a high-speed spiral electrode of nickel-based superalloy 718. The electrochemical micro-milling model with high-speed rotating was established based on the finite element analysis method, and the change of workpiece surface profile was predicted by the simulation of the machining electric field.…”

Section: Introductionmentioning

confidence: 99%

Profile Evolution and Cross-Process Collaboration Strategy of Bearing Raceway by Centerless Grinding and Electrochemical Mechanical Machining

Yan

Fan

et al. 2022

Micromachines

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Roundness is one of the most important evaluation indexes of rotary parts. The formation and change of roundness in the machining of parts is essentially the formation and genetic process of profile. Centerless positioning machining is one of the main surface finishing methods of rotary parts. The rounding mechanism of centerless positioning machining determines its unique roundness profile formation and genetic characteristics. How to eliminate the roundness error of centerless positioning machining has become one of the important issues in the research of high-precision rotary part machining. This paper explores the influence of process parameters on the roundness error from the perspective of profile evolution during centerless grinding and electrochemical mechanical machining, with the aim of providing a cross-process collaboration strategy for improving bearing raceway accuracy. Through an experiment of centerless grinding, the influence law and mechanism of process parameters on the profile are discussed. On this basis, electrochemical mechanical machining experiments are designed to explore the variation rules and mechanisms of different profile shapes in the machining process. The cross-process collaboration strategy is studied, and reasonable parameters of centerless grinding and electrochemical mechanical machining are determined. The results show that in the centerless grinding stage, increasing the support plate angle can form a multiple-lobe profile with high frequency within a wide range of process parameters. Electrochemical mechanical machining can effectively smooth the high-frequency profile and appropriately expanding the cathode coverage can improve the roundness error and reduce the requirement of initial accuracy of a multiple-lobe profile workpiece to a certain extent. Therefore, the combined machining technology of “centerless grinding + electrochemical mechanical machining” provides an efficient technical means to realize the precision machining of rotary parts such as bearing raceways.

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Analysis on Machining Performance of Nickel-Base Superalloy by Electrochemical Micro-milling with High-Speed Spiral Electrode

Cited by 10 publications

References 19 publications

Tooling aspects of micro electrochemical machining (ECM) technology: Design, functionality, and fabrication routes

Tooling aspects of micro electrochemical machining (ECM) technology: Design, functionality, and fabrication routes

Anodic Dissolution Characteristics of GH4169 Alloy in NaNO3 Solutions by Roll-Print Mask Electrochemical Machining Using the Linear Cathode

Profile Evolution and Cross-Process Collaboration Strategy of Bearing Raceway by Centerless Grinding and Electrochemical Mechanical Machining

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