Cathode Design for NC Precision Electrochemical Machining Integer Impeller Based on CFD

Wu, Rong-Tsun; Dan-wen, Zhang; Song, Yuchen

doi:10.1109/icdma.2011.76

Cited by 4 publications

(3 citation statements)

References 9 publications

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“…A conjugate model of electrochemical forming of the blade airfoil was created as well. Using the software package FLUENT pressure distribution in the inter-electrode gap was determined, this pressure distribution was taken into account during the calculation of blade deformations, influencing the gaps change and the nature of forming of the blade back and pressure side by analogy with the approach taken in the works (Wu et al, 2011) [14]. In contrast to the models Fig.…”

Section: Resultsmentioning

confidence: 99%

Computer Simulation of High-Speed Anodic Dissolution Processes of Geometrically-Complex Surfaces of GTE Details

Нехорошев¹,

Проничев²,

Смирнов³

2014

TOMEJ

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Electrochemical machining (ECM) is widely used in modern aircraft engine technology. This method was developed on a step-by-step basis in accordance with development of gas turbine equipment. Introduction of new difficult to machine materials into engines designs and improvement of accuracy of detail geometric parameters required new technological solutions. ECM method has a number of advantages: zero tool wear, the process does not depend on physical-mechanical properties of work piece material, no heat and force action on a work piece; these facts provide high quality of the surface layer and increase engine life. However, electrochemical machining has also disadvantages which essentially limit its applicability. This is primarily a low localization of ECM process. In order to eliminate this disadvantage new ECM schemes were developed, inter-electrode gap was reduced, switched mode power supply units, vibration of electrochemical machining electrode, etc. were used. Electrochemical machines design became more complicated and ECM operations design techniques required new solutions, therefore the scientific inquiry in this area continued intensively. Rapid development of computer technology contributed to the creation of digital models that adequately describe processes in the inter-electrode spacing at ECM. It is necessary to create electronic databases for various electrochemical metal-electrolyte systems, to develop techniques to simulate electric fields in the inter-electrode spacing, and to profile tool electrode automatically. The authors carried out active researches in this area at all stages of ECM development; they have a large number of publications in the field, including 4 monographs.

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Section: Resultsmentioning

confidence: 99%

Computer Simulation of High-Speed Anodic Dissolution Processes of Geometrically-Complex Surfaces of GTE Details

Нехорошев¹,

Проничев²,

Смирнов³

2014

TOMEJ

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“…Demirtas et al used the cathode boundary potential distribution method to design cathode, which reduced the design error of cathode [18]. In order to improve the accuracy of cathode design, Gomez et al carried out simulation research on multi-physical elds such as gap ow eld, electric eld and magnetic eld [19][20][21][22][23][24]. Uchiyama et al designed a exible tool cathode and completed the electrochemical machining of curved hole [25].…”

Section: Introductionmentioning

confidence: 99%

Research on the precision forming cathode design method of electrochemical machining all-metal screw drill stator

Tang,

Wang,

Zhang

et al. 2023

Preprint

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In order to shorten the cathode design cycle, reduce design cost and improve forming accuracy for all-metal screw drill stator electrochemical machining (ECM), this paper proposed a precision forming cathode design method based on particle swarm optimization BP neural network (PSO-BP). The cathode design algorithm model of all-metal screw drill stator electrochemical machining was established, completed the three-side feed cathode design. By using self-developed large scale horizontal CNC electrochemical machining equipment, under the condition of voltage 19V, electrolyte 15%NaCl, electrolyte temperature 35 ± 1℃, electrolyte inlet pressure 1.6MPa, and feed speed 10mm/min, the stable and reliable electrochemical machining processing of the 4-meter length of 38CrMoAlA all-metal screw drill stator was completed. The contour forming accuracy is ± 0.03mm, and the surface roughness is Ra0.848µm. Research showed that it is an efficient and feasible method to design the electrochemical machining three-side feed cathode of all-metal screw drill stator using particle swarm optimization BP neural network.

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“…field, flow field and other factors that interact with each other exist in the electrochemical machining gap, and various physical fields can be simulated by finite element analysis [7][8]. Some scholars have carried on the simulation analysis to the electrochemical machining flow field [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Flow Field Simulation and Experiment Study of ECM Variable Cross-Sectional Hole

Kaige¹,

Tang²,

Xinyun³

et al. 2019

Proceedings of the 2019 International Conference on Precision Machining, Non-Traditional Machining and Intelligent Manufacturin

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In order to solve the problem that ECM (electrochemical machining) of variable cross-sectional hole is easy to short circuit and the flow pattern is large, a rotating flow field electrochemical machining method is proposed. In this paper, the gap flow field model of variable cross-sectional hole is established, the flow field with different oblique angle of liquid hole is simulated and analyzed. The simulation results show that designing rotating flow field with the outlet hole oblique angle of 45° can improve the electrolyte distribution in machining gap and greatly reduce the low speed zone. Under the conditions of processing voltage 10V, electrolyte inlet pressure 1.6MPa, electrolyte temperature 30℃ and cathode feed speed 5mm/min, the electrochemical machining of variable cross-sectional hole was carried out by using the optimized cathode. The results show that the gap flow field simulation can optimize the cathode structure, shorten cathode design cycle and reduce experiment cost.

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Cathode Design for NC Precision Electrochemical Machining Integer Impeller Based on CFD

Cited by 4 publications

References 9 publications

Computer Simulation of High-Speed Anodic Dissolution Processes of Geometrically-Complex Surfaces of GTE Details

Computer Simulation of High-Speed Anodic Dissolution Processes of Geometrically-Complex Surfaces of GTE Details

Research on the precision forming cathode design method of electrochemical machining all-metal screw drill stator

Flow Field Simulation and Experiment Study of ECM Variable Cross-Sectional Hole

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