ASSESSMENT OF OIL EXTRACTS FROM TIGER NUT(Cyperus esculentus), WATER MELON (Citrullus vulgaris) andNEEM SEEDS (Azadirachta indica) AS CUTTING FLUIDS IN DRILLING OPERATION OF MILD STEEL.
ASSESSMENT OF OIL EXTRACTS FROM TIGER NUT(Cyperus esculentus), WATER MELON (Citrullus vulgaris) andNEEM SEEDS (Azadirachta indica) AS CUTTING FLUIDS IN DRILLING OPERATION OF MILD STEEL.
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Date
2016-04
Authors
AMASA, IBRAHIM ABUBAKAR
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Abstract
In this study, three vegetable cutting fluid namely: Tiger nut, water melon seed and neem
seed were selected in drilling operation of mild steel using High Speed Steel (HSS) cutting
tool at varying spindle speeds, feed rate and constant depth of cut. A commercially available
convectional mineral oil was used as standard for comparative analysis. Flood method of
cutting fluid application was adopted at the cutting zone for the cutting fluids, dry drilling
environment was equally subjected to the same cutting parameters as the cutting fluids. The
viability of these selected oil as cutting fluids were examined based on reduction in
temperature generation, surface finish value and characteristics of chips produced. The results
indicated that performance of selectedoil as cutting fluid in term of surface quality was best
with water melon seed having 1.6µm surface roughness while conventional mineral oil was
having 2.2µm at the same feed rate of 0.05 mm/rev, dry drilling condition was having 4.2µm
as the highest value at this stated feed rate. The chips produced shows that all the cutting
fluids were having segmented chip which is a good morphology at lower spindle speed but
dry drilling environment was having 75% of its chip continuous, with substantial portion
being burnt. Reduction in the generated temperature as the spindle speed increased was best
achieved with water melon seed oil followed by mineral oil, tiger nut oil and neem seed oil
respectively. The performance of selected plant cutting fluid are very similar because of their
close physio-chemical properties.
Description
A DISSERTATION SUBMITTED TO THESCHOOL OF POSTGRADUATE STUDIES,
AHMADU BELLO UNIVERSITY, ZARIA-NIGERIA
IN PARTIAL FULFILLMENT OF THE REQUIREMENT FOR THE AWARD OF
MASTER OF SCIENCE DEGREE IN MECHANICAL ENGINEERING
DEPARTMENT OF MECHANICAL ENGINEERING,
FACULTY OF ENGINEERING,
AHMADU BELLO UNIVERSITY, ZARIA-NIGERIA
Keywords
ASSESSMENT,, OIL EXTRACTS,, TIGER NUT,, [Cyperus esculentus),, WATER MELON,, (Citrullus vulgaris),, NEEM SEEDS,, (Azadirachta indica),, CUTTING FLUIDS,, DRILLING OPERATION,, MILD STEEL,