Abstract
Electrical discharge machining is a manufacturing process with a large industrial implementation. The addition of powder particles in suspension in the dielectric modifies some process variables and creates hard and brittle materials with nano surface finish, high tolerance and accuracy to achieve a material removal rate increase. This paper presents a research work to study the performance improvement of material removal rate (MRR) and tool wear rate (TWR)on the nano particle mixed electrical discharge machining. Work piece used is Inconel 718 and tool materials used brass electrode. The electrolyte used is kerosene oil. Titanium carbide nano particle is having high mechanical and electrical properties specifically high electrical conductivity. The input parameters like current, pulse on-time and pulse off-time and outputs MRR and TWR. The experiment results analysis titanium carbide nano particle mixed dielectric fluid to achieve maximum MRR and minimize TWR.
Highlights
Electrical Discharge Machine (EDM) is a nontraditional machining process, where electrical energy is used to make electrical spark and material removal mainly occurs due to thermal energy of the spark
The results revealed that metal removal rate is more influenced by peak current, duty factor and electrode rotation, and material removal rate (MRR) is increased with increase in current and duty factor and electrode speed, whereas depth of average surface roughness is increased with increase in peak current, electrode speed and pulse on-time [10,11,12]
The machining was generally carried out for a fixed time interval and the amount of MRR and tool wear rate (TWR) was measured by taking the difference in weights before and after each experiment using an electric balance with a resolution of 0.001mg to determine the value of metal removal rate was measured from the weight loss
Summary
Electrical Discharge Machine (EDM) is a nontraditional machining process, where electrical energy is used to make electrical spark and material removal mainly occurs due to thermal energy of the spark. The latest concept of manufacturing uses unconventional energy source similar to sound, light, chemical, electrical, mechanical, electrons. With the industrial and scientific growth, development of harder and complicated to machine materials, which find broad application in nuclear, aerospace engineering and other industries due to their high strength to weight ratio, hardness and heat resistance character has been observer. Latest developments in the field of material science have led to new composite materials, engineering metallic materials and high-tech ceramics have high quality mechanical properties and thermal characteristics as fit as sufficient electrical conductivity so that they can gladly be machined by spark erosion [1]. Non-traditional process take nearly infinite capabilities except for volumetric material removal rates, for which vast precede have been made in the past few years to increase the material removal
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