Effect of Coolant Temperature on Machining Characteristics of High Carbon Steel
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Date
2018-03
Journal Title
Journal ISSN
Volume Title
Publisher
Covenant Journal of Engineering Technology (CJET)
Abstract
This paper reports on the effect of coolant temperature on
machining of high carbon steels. The development of a cooling system to
reduce the temperature of water soluble coolant to 7.9oC from ambient
temperature was employed in this work to improve the machining
performance. The experiments were performed using cooled and ambient
temperatures by employing Taguchi L18 orthogonal array to design the
experimental runs. The cutting speed, feed rate and depth of cut were the
machining parameters used; while the tool-work piece interface
temperature was monitored using a digital thermometer with k-type
thermocouple wire. The selected control factors are material removal rate
and surface roughness. The experimental results were analyzed using
Minitab 16. The main effects and percentage contributions of various
parameters affecting surface roughness and material removal rate were
discussed, and the optimal cutting conditions were determined. It was
observed that surface finish improved by 65% with the use of the
developed cooled system. The reduction in coolant temperature played a
vital role in improving surface finish during machining high carbon
steels.
Description
Staff Publication
Keywords
Coolant,, High carbon steel,, Machining parameters,, Surface roughness,, Taguchi method,, Material removal rate.