Abstract
Minimum quality lubrication has shown a noticeable changes with machining outcomes. MQL is one of updated technologies that have been prevailing in contributions towards production and environment enhancement. Present papers deals with the turning of EN 45 steel material which is commonly known to be spring material. En 45 one of the magnetic steel material with low manganese and high amount of carbons is turned under dry and MQL condition. DOE has been prepared with L9 taguchi. Machining factors of speed (75, 100, 125 m/min), feed (0.1, 0.2, 0.3 mm/rev) and depth of cut (0.3, 0.6, 0.9 mm). The surface roughness were optimized by considering the machining parameters of speed, feed, and depth of cut. For both the condition dry and MQL it was observed that speed at 125m/min, feed at 0.1 and depth of cut at 0.3mm was found optimum condition. The regression equation and mathematical model was generated using the experimental data. Furthermore the ANOVA analysis was performed and observed that in case of dry turning speed found to be most influencing parameter and in case of MQL turning Feed was found to be most influencing parameter.
Highlights
EN45 is a manganese steel IS inbuilt spring action with medium spring content in it
Flow rate, distance from the shearing zone and nozzle diameter plays a vital role in MQL lubrication systems
MQL Lubrication system provides good lubricating effect [5] and thereby increases the tool life and reduces the surface roughness [6].Whereas the flood lubrication does the same with combining effect of layer formation on metal and increases the oxidizing effect on the surface when machined under water soluble and water flood cooling system
Summary
EN45 is a manganese steel IS inbuilt spring action with medium spring content in it. Amount of manganese in it states the amount of retraction of forces after smaller deformations. As of the environmental aspects, present papers deals with machining it under minimum quantity lubrication effects. Flow rate, distance from the shearing zone and nozzle diameter plays a vital role in MQL lubrication systems. By this practice the machining environment can be eliminated from oil contaminants, slippery and toxic work environments. Machining was performed under different lubrication effects and found that the minimum quantity lubrication has shown more optimum result when comparing them to dry and flood lubrication systems. Et al [8] experiments and states that depth and feed rate were considerable parameters for optimization of forces while machining EN 31 graded material. Analysis of variance (ANOVA) has been performed to know the most contributing factor effecting the surface roughness
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