Estimation of End-Milled Surface by Machine Tool Equipped with an Idling-Stop Function in a Feed Driving System

Abstract:

In recent years, as global environmental problems have become increasingly serious, the concept of sustainable development, such as the 3Rs, has gained importance. Against this backdrop, machinery and equipment are becoming smaller, lighter, more sophisticated, and multifunctional, with highly integrated products increasingly requiring the machining and assembly of minute mechanical parts. However, the relatively large amounts of servo standby power generated by small machine tools during operation highlight the need for machining methods that reduce power consumption. In this study, we developed a novel 5-axis controlled machine tool equipped with an idling-stop function in the feed-driving system to reduce the power consumption of machining processes. Since this function stops the servo lock of the feed axis, it was unclear whether the same machining accuracy could be maintained as with the original setup. Therefore, in the present study, we measured straight cutting and endpoint areas using a laser microscope and an acceleration sensor and examined the change in machining accuracy due to the idling-stop function. It was found that when the idling-stop was turned off, vibration occurred, resulting in excessive cutting.

• Periodical: Key Engineering Materials (Volume 1012)
• Pages: 115-121
• DOI: https://doi.org/10.4028/p-lYocV4
• Online since: May 2025
• Authors: Yoshiki Tada*, Riki Imai, Masao Nakagawa, Toshiki Hirogaki, Eiichi Aoyama
• Keywords: End Mill Process, Feed Driving System, Machine Tools, Machining Accuracy, Sustainable Manufacturing Technologies

References

[1] S. Kondo, M. Soma, Y. Umeda, Eco Design Japan Symposium, 153-157, (2002) (in Japanese).

[2] Bocken, N.M.P., Allwood, J.M., Willey, A.R., King, J.M.H., Development of an eco-ideation tool to identify stepwise greenhouse gas emissions reduction options for consumer goods, Journal of Cleaner Production, 19(12):1279-1287, (2011).

DOI: 10.1016/j.jclepro.2011.04.009

[3] Yuichi Okazaki, Research and Study on Practical Application of MEMS and Microfactories(1), 28, (2004) (in Japanese).

[4] Brent, K., Roni, N., Measurement and communication of greenhouse gas emissions from U.S. food consumption via carbon calculators, Ecological Economics, 69(1),186-196, (2009).

DOI: 10.1016/j.ecolecon.2009.08.017

[5] Yokota, H., Study on methods to reduce exhaust gases from heavy-duty diesel vehicles in use, Journal of Japan society for Atmospheric Environment, 42(1), 1-15, (2007) (in Japanese).

[6] Liu, F., Xie, J., Liu, S., A method for predicting the energy consumption of the main driving system of a machine tool in amachining process, Jornal of Clearner Production, 105, 171-177, (2015).

DOI: 10.1016/j.jclepro.2014.09.058

[7] Hu, S., Liu, F., He, Y., Hu, T., An on-line approach for energy efficiency monitoring of machine tools, Journal of Cleaner Production 27, 133, (2012).

DOI: 10.1016/j.jclepro.2012.01.013

[8] Mori, M., Fujishima, M., Inamasu, Y. and Oda Y., A study on energy efficiency improvement for machine tools, CIRP Annals - Manufacturing Technology, 60(1), 144-148 (2011) (in Japanese).

DOI: 10.1016/j.cirp.2011.03.099

[9] Kurita, T., Hattori, M., Development of new-concept desk top size machine tool, International Journal of Machine Tools and Manufacture, 45(7-8), 959-965, (2005) (in Japanese).

DOI: 10.1016/j.ijmachtools.2004.10.009

[10] Vijayaraghavan, A., Dornfeld, D., Automated energy monitoring of machine tools, CIRP Annals - Manufacturing Technology, 59(1), 21-24, (2010).

DOI: 10.1016/j.cirp.2010.03.042

[11] Hirogaki, T., Aoyama, E., Ogawa, K., Niiyama, T., Suzuki, M. and Iwama, M., Environmental Impact of Desktop-Sized Five-Axis CNC Machine Tool Estimated with LCA, Journal of Environment and Engineering, 6(2), 242-252, (2011) (in Japanese).

DOI: 10.1299/jee.6.242