Engineering

Permanent URI for this community

https://repository.elizadeuniversity.edu.ng/handle/20.500.12398/6
These are the scholarly outputs of the Faculty of Engineering

Browse

Browsing Engineering by Author "Abdulkareem, Sulaiman"

Now showing 1 - 2 of 2
  • No Thumbnail Available
    Item
    Comparative Analysis of AISI 1050 Steel Using N5-Soluble Oil and Arachis Oil in Metal Cutting Operation
    (Proceedings of the 30th AGM and International Conference of the Nigerian Institution for Mechanical Engineers. Kaduna, 2017-10) Abdulkareem, Sulaiman; Ogedengbe, Temitayo S.; Aweda, Jacob O.; Khan, Ali A.
    The use of coolant during cutting processes does not only help in the improvement of surface integrity and increase in tool life, but it also facilitates the conservation of energy due to reduction in power consumed during the process. However, some of these coolants affect human health negatively, hence there is need to consider alternatives. The influence of N5- soluble oil and Arachis oil on machinability of carbon steels is reported in this paper. The performance of the use of soluble oil and Arachis oil using flooded cooling approach was investigated in with interest on their effects on temperature at cutting zone, surface roughness, chip formation and material removal rate. The experimental runs were designed using Taguchi L18 orthogonal array using Minitab version 16 and temperature at the cutting zone was monitored using a digital thermometer and a k-type thermocouple wire. Analysis of experimental results was done with focus on percentage contributions of various factors affecting surface roughness and material removal rate and chip profile. It was observed that, the use of Arachis oil as cutting fluid produced a surface finish of 35% improvement compared to soluble oil. Additionally, the chips formed using Arachis oil as coolant is more ductile and continuous than those obtained using N5soluble oil
  • Thumbnail Image
    Item
    Effect of Some Thermodynamic Properties of Cutting Fluids on Machinability of Carbon Steel
    (FUOYE Journal of Engineering and Technology (FUOYEJET), 2020-09) Abdulkareem, Sulaiman; Babatunde, Moshood A.; Ogedengbe, T.S.; Adegun, Isaac K.
    Cutting fluids are used to reduce heat generated during machining, however some have been discovered to pose health challenges hence the search for viable alternatives. In this paper, three machining conditions (dry machining, wet machining with soluble oil and wet machining with used-engine oil) were conducted on high carbon steel, with a sole aim of investigating the suitability of engine oil as an alternative to soluble oil. Measurements related to effective use of oil as metal cutting fluids were determined and the machining parameters used were cutting speed (750 – 1750 rpm), feed rate (40 – 120 mm/rev), and depth of cut (0.1 – 0.3 mm). The experimental procedure was formulated using Minitab software version 18 and the machining responses investigated were maximum temperature at the cutting interface, surface roughness, and tool wear rate (TWR). Thermodynamic properties investigated include, flashpoint, specific heat capacity, viscosity and density. The experimental results showed that cutting temperature reduced from an average of 440oK during dry machining to 369.8oK (16% improvement) during machining with used-engine oil and 362.6oK (18% improvement) during machining with soluble oil. The surface roughness produced was generally higher while machining with used-engine oil with an average improvement of 39% in surface integrity. However, when soluble oil was used as cutting fluid, average improvement in surface integrity increased to 70%. Hence, used-engine oil offered impressive lubricating and cooling properties and could replace soluble oil as a cutting fluid during machining.