整体叶盘通道电解加工电极多维运动轨迹优化

doi:CNKI:11-1929/V.20110310.1712.004

Abstract

Abstract: In order to improve the distribution uniformity of the channel finishing margin of a blisk channel,an optimization method of the cathode relative to the workpiece is presented. The influence of electrochemical machining (ECM) on cathode movement path is analyzed. The method optimizes the movement paths of the tool cathode on the blade tip and foot cylinder surfaces, and new paths are obtained by fitting the midpoints of vertical lines into the splines based on the sample points of the old paths. Experimental investigations are carried out in order to verify the rationality of the optimized paths. The result reveals that the margin difference of channel surfaces can be decreased to 2.0 mm with the new paths, in contrast to 4.5 mm with the old paths. The margin difference of the concave and convex airfoil surfaces decreases to 1.2 mm from 3.5 mm at the corresponding area of the blade sampling point. It can be concluded that the new paths are well designed and can make the margin distribution of channel surfaces uniform to a certain extent, and the process environment of subsequent finishing is thus optimized.

Key words: blisk, channel, electrochemical machining, path, optimization

CLC Number:

V261.5
TG662

XU Qing, ZHU Di, XU Zhengyang, QU Ningsong. Optimization of Cathode Multidimensional Movement Path in Electrochemical Machining of Blisk Channels[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2011, 32(8): 1548-1554.

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Optimization of Cathode Multidimensional Movement Path in Electrochemical Machining of Blisk Channels

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