Journal
MEDICAL ENGINEERING & PHYSICS
Volume 38, Issue 11, Pages 1330-1338Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.medengphy.2016.08.012
Keywords
RUD; Bone; Thermocouple; RSM; ANOVA; Temperature
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Funding
- EPSRC-DST project titled as Modelling of Advanced Materials for Simulation of Trans formative Manufacturing Process (MAST) [EP/K028316/1, DST/RC-UK/14-AM/2012]
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Thermal necrosis is one of the major problems associated with the bone drilling process in orthopedic/trauma surgical operations. To overcome this problem a new bone drilling method has been introduced recently. Studies have been carried out with rotary ultrasonic drilling (RUD) on pig bones using diamond coated abrasive hollow tools. In the present work, influence of process parameters (rotational speed, feed rate, drill diameter and vibrational amplitude) on change in the temperature was studied using design of experiment technique i.e., response surface methodology (RSM) and data analysis was carried out using analysis of variance (ANOVA). Temperature was recorded and measured by using embedded thermocouple technique at a distance of 0.5 mm, 1.0 mm, 1.5 mm and 2.0 mm from the drill site. Statistical model was developed to predict the maximum temperature at the drill tool and bone interface. It was observed that temperature increased with increase in the rotational speed, feed rate and drill diameter and decreased with increase in the vibrational amplitude. (C) 2016 IPEM. Published by Elsevier Ltd. All rights reserved.
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