Comparative Study of Different Coolants in End Milling of OHNS Using Minimum Quantity Lubrication Technique

G. Tigere; U. Mohammed Iqbal; S. Vignesh

doi:10.6180/jase.201903_22(1).0010

Comparative Study of Different Coolants in End Milling of OHNS Using Minimum Quantity Lubrication Technique

G. Tigere¹, U. Mohammed Iqbal This email address is being protected from spambots. You need JavaScript enabled to view it.¹ and S. Vignesh²

¹Department of Mechanical Engineering, SRM Institute of Science and Technology, Kattankulathur, Chennai 603203, Tamil Nadu, India
²Department of Mechanical Engineering, SRM Institute of Science and Technology, Vadapalani Campus, Chennai 600026, Tamil Nadu, India

Received: June 7, 2018
Accepted: October 30, 2018
Publication Date: March 1, 2019

Download Citation: ||https://doi.org/10.6180/jase.201903_22(1).0010

ABSTRACT

Minimum quantity lubrication (MQL) technique has proved that it drastically reduces costs in machining processes and thus is increasingly being used to replace flood cooling as a cooling method in machining processes. It also minimizes negative effects of cutting fluids on environment, human health and production efficiency. This study seeks to make a comparative evaluation on the effects of synthetic fluid and vegetable oil as cutting fluids in a MQL environment to attain enhanced surface finish, reduced tool wear and dimensional integrity in end milling of OHNS die steel using a CNC Vertical Milling Center. The parameters considered for the experiments are feed rate, fluid pressure and cutting speed. The results show good improvement in surface finish, tool wear rate and dimensional integrity when using MQL technique in milling of OHNS. Among the two types of cutting fluids the vegetable oil yielded better results on the surface roughness, tool wear rate and dimensional integrity characteristics in milling of OHNS Die steel.

Keywords: MQL, OHNS Die Steel, Synthetic Coolant, Vegetable Oil, Surface Finish, Tool Wear

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