Abstract
As for blisk blade profile polishing, the “five-axis numerical control + flexible grinding head + elastic grinding tool” polishing process equipment has advantages of high precision, little interference, good adaptivity, etc.; in order that the elastic grinding tool (abrasive cloth wheel) can effectively fit in with the blade profile in the polishing process and polishing quality and efficiency can be improved, a polishing path programming method of the elastic grinding tool was studied, feed mode of the elastic grinding tool and parametric method of the blade profile were proposed, and calculation methods of offset surface, polishing spacing, polishing step size and cutter-axis vector were given; this polishing path programming method makes it possible for the flexible spindle mechanism keeps a reasonable pose during the polishing process so that the elastic grinding tool can not only effectively fit in with the blade profile but also the polishing force direction of the elastic grinding tool is basically identical with normal vector direction of the polishing point; the polishing test results indicate that: After polishing, blade surface roughness is smaller than 0.4 μm and blade profile tolerance is within the tolerance zone, thus satisfying technical requirements and indicating that the technology proposed in this paper can satisfy blisk blade profile polishing requirements.
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This work is supported by the Key Laboratory of Contemporary Design and Integrated Manufacturing Technology Ministry of Education, China.
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Recommended by Associate Editor Seok-min Kim
Wenbo Huai received master’s degree in engineering from Xi’an University of Technology in 2009 and doctorate of engineering from Northwestern Polytechnical University in 2018. China. Mr. Huai is currently an Associate Professor at the School of High Vocational Education at Xi’an University of Technology in Xi’an, China. His research fields is adaptive polishing technique for complex surface.
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Huai, W., Shi, Y., Tang, H. et al. An adaptive flexible polishing path programming method of the blisk blade using elastic grinding tools. J Mech Sci Technol 33, 3487–3495 (2019). https://doi.org/10.1007/s12206-019-0643-0
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DOI: https://doi.org/10.1007/s12206-019-0643-0