Effect of Ultrasonic Vibration of Tool on Electrical Discharge Machining of Tungsten Carbide (WC-Co)

سال انتشار: 1384
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 1,426

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شناسه ملی سند علمی:

ICME07_030

تاریخ نمایه سازی: 6 آذر 1388

چکیده مقاله:

This paper deals with the effect of copper tool vibration with ultrasonic (US) frequency on the electrical discharge machining (EDM) characteristics of tungsten carbide (WC-Co). It is found that ultrasonic vibration of the tool (USVT) is more effective in attaining a high material removal rate (MRR) in low current and low pulse time (finishing regimes), and in general the surface roughness and tool wear ratio (TWR) increase. It is observed that ultrasonic vibration of the tool significantly reduces arcing and open circuit pulses, and the stability of the process is increased. This study shows that, there are optimum conditions for ultrasonic assisted machining of tungsten carbide,although the conditions may vary by giving other input parameters for those which have been set constant in the present work.

نویسندگان

Amir Abdullah

No ۴۲۴, Hafez Ave., Department of MechanicalEngineering, Amirkabir University of Technology,Tehran, Iran

Mohammad R. Shabgard

Department of Mechanical Engineering, University ofTabriz, Tabriz, Iran

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