Vibrational Impact on Milled Surface Irregularities

Author(s): Lishchenko N. V.^1*, Larshin V. P.², Pitel J.³

Affiliation(s):
¹Odessa National Academy of Food Technologies, 112 Kanatna St., 65039 Odessa, Ukraine;
²Odessa National Polytechnic University, 1 Shevchenko Ave., 65044 Odessa, Ukraine;
³Technical University of Kosice, 1 Bayerova St., 080 01 Presov, Slovakia

^*Corresponding Author’s Address: [email protected]

Issue: Volume 7, Issue 1 (2020)

Dates:
Paper received: December 23
The final version of the paper received: March 26, 2020
Paper accepted online: April 9, 2020

Citation:
Lishchenko N. V., Larshin V. P., Pitel J. (2020). Vibrational impact on milled surface irregularities. Journal of Engineering Sciences, Vol. 7(1), pp. A8–A16, doi: 10.21272/jes.2020.7(1).a2

DOI: 10.21272/jes.2020.7(1).a2

Research Area: MANUFACTURING ENGINEERING: Machines and Tools

Abstract. The methodology and results of a simultaneous study of causally linked parameters of mechanical vibration (cause) and surface irregularities (consequence) in flat milling with an end mill are given. The features of measurement and analysis of surface quality parameters through the application of the separation frequency method of profilogram harmonic components on the surface roughness, waviness, and the deviation of the profile are reviewed. A new method of profilogram digital processing is developed, comprising the steps of its digitization, low-pass filtering, and the formation of the roughness profile. The initial theoretical positions on modeling mechanical (elastic) waves which are caused by vibration in the cutting zone and propagate in a solid, liquid, and gas (air) media are presented. The results of experimental studies of milled surface profilogram and the vibro-displacement signal in the milling are given.

Keywords: part performance, surface finish, surface integrity, vibro-acceleration, vibro-velocity, vibro-displacement, roughness, waviness, form deviation.

References:

Dunin-Barkovskiy, I. V. (1978). Measurements and Analysis of Surface Roughness, Waviness and Non-Circularity. Moscow.
Tabenkin, A.N. et al. (2007). Roughness, waviness, profile. International experience. SPb. (in Russian).
Mahr Perthometer. Surface Texture Parameters. New Standards DIN EN ISO. ASME. Available at http://lab.fs.uni-lj.si/lat/uploads/metrologija/o_hrapavosti_Mahr_publikacija.pdf.
Jiang, L. et al. (2013). The research of surface waviness control method for 5-axis flank milling. International Journal of Advanced Manufacturing Technology, Vol. 69(1-4), pp. 835–847, doi: 10.1007/s00170-013-5041-7.
Lin, X. (2017). Research on the mechanism of milling surface waviness formation in thin-walled blades. The International Journal of Advanced Manufacturing Technology, Vol. 93, pp. 2459–2470, doi: 10.1007/s00170-017-0669-3.
Liu, X. W. et al. (2004). Experimental Investigation of the machined surface waviness, vibrations and cutting forces in peripheral milling. Key Engineering Materials, Vol. 257-258, pp. 213–218.
Constantine, D. et al. (2018). Experimental Analysis of the effect of vibration phenomena on workpiece topomorphy due to cutter runout in end-milling process. Machines, Vol. 6, art. no. 27, doi: 10.3390/machines6030027.
Lacerda, H. B., Lima, V. T. (2004). Evaluation of cutting forces and prediction of chatter vibrations in milling. COBEF 2003 – II Brazilian Manufacturing Congress, Vol. 26(1), pp. 835–847.
Mazur, M. P. et al. (2011). Fundamentals of Material Cutting Theory. Lviv, Ukraine.
Lyons, R. (2009). Digital Signal Processing (2nd ed). Moscow.
Gaur, R. K., Gupta, S. L. (1993). Engineering Physics. Dhanpat Rai & Sons.
Hamming, R. V. (1980). Digital Filters. Moscow.
State System for Ensuring the Uniformity of Measurements. Contact (Stylus) Instruments for the Measurements of Surface Roughness. Metrological Characteristics of Phase Correct Filters. GOST R 8.652-2009 (2009). Moscow. Available at https://meganorm.ru/Data2/1/4293827/4293827621.pdf.
Lishchenko, N. V., Larshin, V. P. (2015). The effect of vibration on the waviness of the surface being machined during milling.Information Technologies in Education, Science and Production, 3(8), pp. 254–260.

Full Text