面向型面精度一致性的整体叶盘砂带磨削新方法及实验研究

doi:10.7527/S1000-6893.2015.0228

Abstract

Abstract:

As the blisk is comprised of many blades, according to the "law of cask", its performance and life are dependent on the worst PF-precision (profile accuracy and surface quality) of blade. So, besides meeting the requirement of the PF-precision, it is important to improve the PF-precision consistency of blisk blade. The new belt grinding method for the consistency of the blisk profile and surface precision is introduced in this paper, the reciprocating motion and self-sharpening grinding are used to efficiently realize material removal, and at the same time, the method of automatic update periodic is used to improve the PF-precision consistency. The new method of belt grinding for the PF-precision of the blisk is illustrated, the consistency control equation for the PF-precision of the blisk is established, and then, the belt grinding experiment is applied to 11 blades of the aeroengine blisk. Meanwhile, the standard deviation is used to analyze the consistency of PF-precision of blisk. The results show that the surface roughness is less than 0.25 μm, the profile accuracy is less than 0.05 mm and the PF-precision consistency is significantly improved.

Key words: blisk, belt grinding, profile precision, surface quality, consistency

CLC Number:

V261.2⁺5

XIAO Guijian, HUANG Yun, YI Hao. Experimental research of new belt grinding method for consistency of blisk profile and surface precision[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2016, 37(5): 1666-1676.

References

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Experimental research of new belt grinding method for consistency of blisk profile and surface precision

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