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Ubani, N. O.
Department of Mechanical Engineering, Michael Okpara University of Agriculture, Umudike, Nigeria
Nwobi-okoye, C. C.
Chukwuemeka Odumegwu Ojukwu University, Uli, Anambra State, Nigeria
Dara, J. E.
Nnamdi Azikiwe University, Awka, Anambra state, Nigeria
Eni-ikeh, S. N.
Department of Mechanical Engineering, Michael Okpara University of Agriculture, Umudike, Nigeria
Okoro, C.
Department of Mechanical Engineering, Michael Okpara University of Agriculture, Umudike, Nigeria
ABSTRACT
This work produces a machine component-motor cycle
hand clutch using a high pressure cold chamber die casting machine. The
aluminum cable coil was alloyed with 10%wt silicon and 0.6%wt of magnesium and
0.5%wt of copper while the chemical composition of aluminum alloyed coil
contains 97.82% aluminum, 1.17% of silicon, 0.54% of copper 0.35% magnesium,
and traces of iron and chromium. Taguchi method was adopted for optimization of
the response parameters and mechanical properties of the cast to obtain the
optimum performance of porosity using density as response factor. The optimal
value was obtained with sample specimen 3 with charging masses of Si = 0.7; Cu
= 0.8 and Mg = 0.7 at density of 2.7533 and porosity of 0.3632, while at this
optimal value, the following corresponding values for mechanical properties
were obtained: impact = 136/416 Joules; UTS = 58.487 N/mm2; Hardness
= 41HRB, %Elongation = 11.3649; Y.M = 882.3998; Flexural Strength = 105.9556
N/mm2 with a yield strength of 2.0763 N/mm2.
Keywords: Optimization, Die-Cast, mechanical properties, taguchi, Aluminum alloyed
https://doi.org/10.33922/j.ujet_v9i1_6
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Published
Tuesday, June 27, 2023
Issue
Vol. 9 No. 1, June 2023
Article Section
GENERAL
The contents of the articles are the sole opinion of the author(s) and not of UJET.
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