Experimental Research and Multi-Physical Field Coupling Simulation of Electrochemical Machining Based on Gas–Liquid Two-Phase Flow

Li, Zhaolong; Li, Wangwang; Dai, Ye

doi:10.3390/mi13020246

Cited by 6 publications

(1 citation statement)

References 12 publications

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“…The basic simulation parameters of mask electrochemical machining are shown in Table 3 . In this paper, 16% NaNO 3 solution was used as electrolyte, mainly because it is soluble in water and is an ionic compound [ 32 ]. The change of flow characteristics can also be ignored, and the dynamic viscosity of water can be used for calculation.…”

Section: Modeling Of Electrochemical Machining Of Cooling Holes and P...mentioning

confidence: 99%

Simulation Analysis and Process Evaluation of Cooling Hole Forming Precision in Mask Assisted Electrochemical Machining Based on GH4169

Dai

2022

Materials

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Good heat dissipation performance of aero-engine an effectively improve the service performance and service life of aero-engine. Therefore, this paper studies the machining method of cooling holes of high-temperature existent material GH 4169 for aero-engine innovatively puts forward the mask electrochemical machining method of cooling holes and explores the entrance morphology and taper formation law of the hole structure of high-temperature resistant material GH 4169. The mathematical model of anode dissolution of cooling holes in ECM is established, and the influence of voltage and electrolyte flow rate on cooling holes in ECM is analyzed. Compared with the mask-less electrochemical machining, the inlet radius of cooling holes in mask electrochemical machining is reduced by about 16.0% and the taper is reduced by 52.8% under the same machining parameters, which indicates that the electrochemical machining efficiency of mask is higher and the machining accuracy is better. Experiments show that the diameter of the mask structure improves the accuracy of the inlet profile of the cooling hole in the ECM. The diameter of the mask increases from 2 mm to 2.8 mm, and the inlet radius of the cooling hole increased from 1.257 mm to 1.451 mm When the diameter of the mask is 2.2 mm, the taper of the cooling hole decreased by 53.4%. The improvement effect is best, and the thickness of the mask has little influence on the forming accuracy of the cooling hole.

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Section: Modeling Of Electrochemical Machining Of Cooling Holes and P...mentioning

confidence: 99%