Experimental Investigation of Uncoated Electrode and PVD AlCrNi Coating on Surface Roughness in Electrical Discharge Machining of Ti-۶Al-۴V

  • سال انتشار: 1400
  • محل انتشار: ماهنامه بین المللی مهندسی، دوره: 34، شماره: 4
  • کد COI اختصاصی: JR_IJE-34-4_019
  • زبان مقاله: انگلیسی
  • تعداد مشاهده: 248
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نویسندگان

N. Phan

Hanoi University of Industry, Cau Dien Street, Bac Tu Liem District, Hanoi, Vietnam

P. Dong

Hanoi University of Industry, Cau Dien Street, Bac Tu Liem District, Hanoi, Vietnam

T. Muthuramalingam

Department of Mechatronics Engineering, SRM Institute of Science and Technology, Kattankulathur, India

N. Thien

Hanoi University of Industry, Cau Dien Street, Bac Tu Liem District, Hanoi, Vietnam

H. Dung

Hanoi University of Industry, Cau Dien Street, Bac Tu Liem District, Hanoi, Vietnam

T. Hung

Hanoi University of Industry, Cau Dien Street, Bac Tu Liem District, Hanoi, Vietnam

N. Duc

Hanoi University of Industry, Cau Dien Street, Bac Tu Liem District, Hanoi, Vietnam

N. Ly

Hanoi University of Industry, Cau Dien Street, Bac Tu Liem District, Hanoi, Vietnam

چکیده

The surface texture on the EDM is an important quality indicator since it directly affects the cost of the further finishing work. The coating over the tool electrode in EDM can improve productivity, electrode wear resistance and surface quality. In the present study, the surface roughness of the EDM machined surface with coated and uncoated electrodes was evaluated. Al and AlCrNi coated Al electrode has been used for the study on machining Titanium alloy (Ti-۶Al-۴V). Current (I), voltage (Vg) and pulse on time (Ton) have been used as technology parameters under Taguchi method with regression model and optimal technology parameters. It was found as I and Vg are the parameters could strongly affect surface quality. The coated tool electrode can produce better surface quality than uncoated tool electrode. The optimal technological parameters with coated and uncoated electrodes were found as I = ۱۰ A, Ton = ۵۰۰ µs and Vg = ۴۰ V.

کلیدواژه ها

EDM, Regression Model, Taguchi, Coated electrode

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