81. The machining noise control of large size extruded aluminum utilized in high-speed trains
D. P. Yang1, Q. F. Wang2, H. C. Zhang3, H. W. Sun4, T. Feng5, H. Y. Xu6, X. H. Zhou7
1, 2, 6, 7Key Laboratory of Geo-Exploration Instrumentation Ministry of
3College of Materials Science and Engineering, Jilin University, Changchun, P. R. China
3, 4, 5Changchun Railway Vehicles Co., Ltd., Changchun, P. R. China
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(Received 28 October 2015; received in revised form 3 January 2016; accepted 14 January 2016)
Abstract. The noise level was assessed by measuring and processing the sound pressure during the mechanical treatment of large size aluminum extrusions utilized in high-speed trains. The noise control tests were proposed by various machining technologies including the adjustments of cutter tool, machining feed rate, cutting way and sealing the openings with sound-absorbing material or not. The results indicated that obvious noise suppression can be obtained by using monolithic cutters, and sealing the openings and ports with sound-absorbing materials, which has little effect on the whole machining efficiency. It is helpful for noise reduction using the machining technologies of cutting along milling and slowing the feed rate down, which requires a balance between noise level and machining efficiency.
Keywords: machining noise, machining technology, extruded aluminum, high-speed train.
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Cite this article
Yang D. P., Wang Q. F., Zhang H. C., Sun H. W., Feng T., Xu H. Y., Zhou X. H. The machining noise control of large size extruded aluminum utilized in high‑speed trains. Journal of Measurements in Engineering, Vol. 4, Issue 1, 2016, p. 1‑6.
Journal of Measurements in Engineering. March 2016, Volume 4, Issue 1
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