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Appl. Sci. 2016, 6(3), 76; doi:10.3390/app6030076

Investigation of the Machining Stability of a Milling Machine with Hybrid Guideway Systems

1
Graduate Institute of Precision Manufacturing, National Chin-Yi University of Technology, Taichung 41170, Taiwan
2
Intelligent Machine Tool Technology Center, ITRI Central Region Campus, Taichung 54041, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Chih Jer Lin
Received: 29 November 2015 / Revised: 19 February 2016 / Accepted: 23 February 2016 / Published: 8 March 2016
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Abstract

This study was aimed to investigate the machining stability of a horizontal milling machine with hybrid guideway systems by finite element method. To this purpose, we first created finite element model of the milling machine with the introduction of the contact stiffness defined at the sliding and rolling interfaces, respectively. Also, the motorized built-in spindle model was created and implemented in the whole machine model. Results of finite element simulations reveal that linear guides with different preloads greatly affect the dynamic responses and machining stability of the horizontal milling machine. The critical cutting depth predicted at the vibration mode associated with the machine tool structure is about 10 mm and 25 mm in the X and Y direction, respectively, while the cutting depth predicted at the vibration mode associated with the spindle structure is about 6.0 mm. Also, the machining stability can be increased when the preload of linear roller guides of the feeding mechanism is changed from lower to higher amount. View Full-Text
Keywords: dynamic compliance; machining stability; hybrid guideways dynamic compliance; machining stability; hybrid guideways
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Hung, J.-P.; Lin, W.-Z.; Chen, Y.-J.; Luo, T.-L. Investigation of the Machining Stability of a Milling Machine with Hybrid Guideway Systems. Appl. Sci. 2016, 6, 76.

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