Experimental Investigation of Machining Parameters of Near Dry Electrical Discharge Machining (EDM) of Mo40 Steel Using Vegetable Oil

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NASRI M.; Rouhani Esfahani e.

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Journal: Modares Mechanical Engineering Year:2019 | Volume:19 | Issue:6 Page(s): 1539-1549

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Title

Experimental Investigation of Machining Parameters of Near Dry Electrical Discharge Machining (EDM) of Mo40 Steel Using Vegetable Oil

Author(s)

NASRI M. | Rouhani Esfahani e. | Issue Writer Certificate

Keywords

Near Dry Electrical Discharge MachiningQ1

Response Surface MethodQ1

Air PressureQ1

Vegetable OilQ1

Abstract

Near Dry Electrical Discharge Machining (EDM) is one of the advanced methods for removing materials environmentally friendly. Combining the minimum quantity of lubricant (MQL) and Vegetable Oil not only reduces health hazarders and costs, but also improves the process. This research has been conducted on Mo40 steel and the mixture of Vegetable Oil and air has been used as dielectric. The effect of electric current variables, open circuit voltage, pulse on and off time and Air Pressure were studied on material removal rate (MRR), tool wear rate (TWR), and surface roughness (Ra), using the method of designing the central composition of the response surface. The results showed that the increase in ampere, pulse on time and open circuit voltage increase the MRR; also, increase of the pulse off time improves washing of the environment that prevent short-circuit and all had an effect on the MRR. Also, increasing the ampere and open circuit voltage leads to an increase in the TWR and increasing the pulse on time, as well as the increase in pulse off time, reduces the TWR. Increasing the Air Pressure reduced the dielectric density and increased the TWR. On the other hand, the increase in the ampere and the pulse on time as well as the open circuit voltage increased Ra and increase in the pulse off time and the Air Pressure reduced Ra. This method has led to an increase of 200% in MRR, 30% reduction in TWR, and 60% reduction in Ra compared to the kerosene immersion method.

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APA: Copy

NASRI, M., & Rouhani Esfahani, e.. (2019). Experimental Investigation of Machining Parameters of Near Dry Electrical Discharge Machining (EDM) of Mo40 Steel Using Vegetable Oil. MODARES MECHANICAL ENGINEERING, 19(6 ), 1539-1549. SID. https://sid.ir/paper/178645/en

Vancouver: Copy

NASRI M., Rouhani Esfahani e.. Experimental Investigation of Machining Parameters of Near Dry Electrical Discharge Machining (EDM) of Mo40 Steel Using Vegetable Oil. MODARES MECHANICAL ENGINEERING[Internet]. 2019;19(6 ):1539-1549. Available from: https://sid.ir/paper/178645/en

IEEE: Copy

M. NASRI, and e. Rouhani Esfahani, “Experimental Investigation of Machining Parameters of Near Dry Electrical Discharge Machining (EDM) of Mo40 Steel Using Vegetable Oil,” MODARES MECHANICAL ENGINEERING, vol. 19, no. 6 , pp. 1539–1549, 2019, [Online]. Available: https://sid.ir/paper/178645/en

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