Journal
INTERNATIONAL TRIBOLOGY CONFERENCE MALAYSIA 2013
Volume 68, Issue -, Pages 24-29Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.proeng.2013.12.142
Keywords
Drilling process; Machining parameters; Surface roughness; Response surface method
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Funding
- Universiti Teknikal Malaysia Melaka (UTeM) [PJP/2012/FKP (25B) S1028]
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The optimization of surface integrity in drilling process using response surface method (RSM) is presented. This paper investigates the effects of drilling parameter such as spindle speed, feed rate and drill diameter on the surface roughness and surface texture of drilled hole by applying RSM. There are three factors (spindle speed, feed rate and drill diameter) under investigation, therefore, by applying RSM there will be 20 experimental observations. The minimum surface roughness measured for the hole was 1.06 m at combination of 2000 rpm spindle speed, 78 mm/min feed rate and 2.5 mm drill diameter. While the maximum surface roughness of 2.59 m was measured at the combination of 250 rpm spindle speed, 153 mm/min feed rate and 3.5 mm drill diameter. One factor plot analysis found that the most significant parameter was spindle speed followed by drill diameter and feed rate. Thus, surface roughness decreased when increasing the spindle speed, feed rate and drill diameter. There were interactions between all the parameter of spindle speed, feed rate and drill diameter in drilling process under investigation. (C) 2013 The Authors. Published by Elsevier Ltd.
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