EFFECT OF SOME VEGETABLE BASED OIL AS LUBRICANTS ON THE EXTRUSION OF ALUMINIUM
EFFECT OF SOME VEGETABLE BASED OIL AS LUBRICANTS ON THE EXTRUSION OF ALUMINIUM
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Date
2014-07
Authors
MOVEH, Samuel
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Abstract
Four vegetable based oils were used as trial lubricants in the extrusion of aluminium billet
through four different die geometries. These oils were extracted from Castor seeds, Neem seeds,
Jatropha seeds and Cotton seeds respectively. Results obtained from this work as compared with
other works done in the area shows that these oils were found to be suitable as lubricants in the
extrusion of aluminium because of their heat reduction abilities and good surface finish.
Extrusion dies with semi die angles of 300, 450 and 600were used; good quality surface finish and
hardness of extruded billets were obtained. The coefficient of friction between the billet and the
container wall was calculated for each process; Castor oil with good heat reduction ability and
gave the least co-efficient of friction of 0.100 and 0.107 respectively. Also for all the geometries
of billet extruded, round and triangular billets gave good surface finish for all the oils except for
castror oil which gave the best surface finish. Based on previous experiments carried out on the
extrusion of aluminium, surface cracking were major defects caused by the rise in temperature as
the process proceeds. This research experiments indicated that the surface quality is good even
though the temperature may be high during extrusion process
Description
A THESIS SUBMITTED TO THE SCHOOL OF POST GRADUATE STUDIES,
AHMADU BELLO UNIVERSITY, ZARIA
IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE AWARD
OF A
MASTER DEGREE IN PRODUCTION ENGINERRING.
DEPARTMENT OF MECHANICAL ENGINEERING,
FACULTY OF ENGINEERING
AHMADU BELLO UNIVERSITY, ZARIA
NIGERIA.
JULY, 2014
Keywords
EFFECT,, VEGETABLE,, BASED,, OIL,, LUBRICANTS,, EXTRUSION,, ALUMINIUM.