Journal
INNOVATIVE FOOD SCIENCE & EMERGING TECHNOLOGIES
Volume 7, Issue 4, Pages 288-293Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.ifset.2006.04.004
Keywords
ultrasonic cutting; cutting velocity; vibration speed; vibration amplitude; cutting force reduction; foods
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The effects of vertical cutting velocity and the magnitude of ultrasonic excitation on the reduction of the work necessary to separate various food materials were investigated. Generally, cutting work increased with increasing cutting velocity but, at each particular cutting velocity, decreased with increasing magnitude of the ultrasonic excitation of the cutting tool. Interactions between cutting velocity and the maximum vibration speed at the cutting edge, which is determined by both excitation amplitude and excitation frequency, are significant. Depending on the food under action, the relative amount of cutting work reduction is either affected by the maximum vibration speed or, additionally, by vertical cutting velocity. No distinct effects of the excitation frequency (20 or 40 kHz) were observed. (c) 2006 Elsevier Ltd. All rights reserved.
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