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A Study on the Machining Accuracy according to Vibration and Unbalance Decrease in Rotational Speed Domains of High Precision Machine Tools  

Son, Deok-Soo (Dept. of Automated System, Gumi Campus of Korea Polytechnic)
Kim, Sang-Hwa (Dept. of Automated System, Gumi Campus of Korea Polytechnic)
Park, Il-Hwan (Korea University Of Technology & Education)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.12, no.2, 2013 , pp. 121-126 More about this Journal
Abstract
Precision machine tools for high dignity cutting are needed for efforts to improve machining accuracy. However, there are many factors to improve machining accuracy. This study investigated how machining accuracy changes when variation and unbalance amount in rotational speed domain is decreased. Machining accuracy of initial machine tools depends on manufacturing and assembly of parts such as bearing. And then, vibration and noise vary with volume of unbalance amount when it is rotation, so it effects unbalance amount. Also vibration and noise increased by unbalance shorten spindle's life and it especially makes worse boring accuracy. Therefore, this study studied the change of roundness and cylindricity of workpiece when it decreases variation and unbalance in rotational speed domain.
Keywords
Unbalance; Machine tool; Machining accuracy; Roundness; Cylindricity; Vibration;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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