Abstract
Abstract Grinding requires high specific energy which develops high temperatures at wheel work piece interface. High temperatures impair work piece quality by inducing tensile residual stress, burn, and micro cracks. Control of grinding temperature is achieved by providing effective cooling and lubrication. Conventional flood cooling is often ineffective due to enormous heat generation and improper heat dissipation. This paper deals with an investigation on using TRIM E709 emulsifier with Al2O3 nanoparticles to reduce the heat generated at grinding zone. An experimental setup has been developed for this and detailed comparison has been done with dry, TRIM E709 emulsifier and TRIM E709 emulsifier with Al2O3 nanoparticles in grinding EN-31 steel in terms of temperature distribution and surface finish. Results shows that surface roughness and heat penetration were decreased with addition of Al2O3 nanoparticles.
Highlights
Grinding is an abrasive material removal process, which is widely used in manufacturing compoents requiring fine tolerances and smooth finishes
When the cutting fluid is applied to the grinding zone, it will initially undergo nucleate boiling, which enhances the rate of heat transfer between the workpiece and the fluid
As the temperature increases further, a vapour film is developed between the workpiece and the fluid, which acts as an insulator and prevents heat transfer to the fluid
Summary
Grinding is an abrasive material removal process, which is widely used in manufacturing compoents requiring fine tolerances and smooth finishes. In this paper the effect on surface roughness and heat dissipation by suspending Al2O3 nanoparticles in eco-friendly emulsifier TRIM E709 in machining EN-31 steel at different speed-feed-depth of cut combinations are observed.
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