A Study on the Impact of the Milling Parameters on the Surface Roughness when Using Polyurethane Board as a Base Material in Manufacturing Automotive Checking Fixtures


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The improvement of the quality of the surface roughness of the polyurethane board (PB) has always been a challenge in the automotive industry. A suitable combination of the milling parameters is very important in order to get a high grade of smoothness specially when dealing with complex designs such as curved profiles. In this paper, a half factorial design of experiment (DoE) with 16 runs at two levels is applied in the milling operation of the checking fixtures of a car seat belt bracket under a dry cutting condition. The Feed rate, Depth of cut, Spindle speed, Step over and Plunge rate were taken as the variables for the DoE. Two different milling tools, a flat end mill of diameter10 mm for roughing, and a ball nose of diameter 5 mm for the finishing process were used. Minitab software was use to analyze the correlation between the parameters and the surface roughness. The most influential factor in the milling process was observed to be the Step over.



Edited by:

Nur Farhana Diyana Mohd Yunos, Zunaida Zakaria, Sri Raj Rajeswari A/P Munusamy, Lim Bee Ying, Noorina Hidayu Jamil and Norzilah Abdul Halif




L. D. K. Catherine et al., "A Study on the Impact of the Milling Parameters on the Surface Roughness when Using Polyurethane Board as a Base Material in Manufacturing Automotive Checking Fixtures", Materials Science Forum, Vol. 819, pp. 449-454, 2015

Online since:

June 2015




* - Corresponding Author

[1] Back D.D.K., Ko,T.J., Ko,H.S., & Kim H.S. A Dynamic surface roughness model for face milling, Precision Engineering. 20 (1997) 171-178.

DOI: https://doi.org/10.1016/s0141-6359(97)00043-3

[2] Nes_eli,S., Yaldız,S., & Turkes,E. Optimization of tool geometry parameters for turning operations based on the response surface methodology, Measurement. 44 (3) (2011) 580–587.

DOI: https://doi.org/10.1016/j.measurement.2010.11.018

[3] Wang,W., Kweon S.H., & Yang S.H. A study on roughness of the micro end milled surface produced by miniature machine tool, Journal of Material and Processing Technology. 162 163(2005) 703-708.

DOI: https://doi.org/10.1016/j.jmatprotec.2005.02.141

[4] Yang Y.K., Chuang M.T., & Lin S.S. Optimization of dry machining parameters for high-purity graphite in end milling process via design of experiments methods" Journal of materials processing Technology. 209, 4395-4400.

DOI: https://doi.org/10.1016/j.jmatprotec.2008.11.021

[5] Kuang-Hua,F., & Chin-Fu,W. A proposed statistical model for surface quality prediction in end milling of Al alloy, International Journal of Machine Tools &Manufacture. 35 (1995) 1187-1200.

DOI: https://doi.org/10.1016/0890-6955(95)90408-e

[6] Thamizhmanii,S., Sarapudin,S., & Hasan,S. Analysis of surface roughness by using Taguchi method, Journal of Achievement in Material and Manufacturing Engineering. 20 (1-20) (2007) 503-505.

[7] Catherine L.D.K., Ma'arof,R.A.R., & Suresh,S. Influence of the chemical composition of Polyurethane block on the surface roughness in machining. International Conference on Engineering Technology &Technopreneurship (ICE2T 2014).

DOI: https://doi.org/10.1109/ice2t.2014.7006243