WEDM is a one of the non-conventional machining processes used for machining complex shape components and hard materials to produce intricate shapes on the wide variety of materials. With the increasing demands of high surface finish and high rate of MRR of complex shape geometries, WEDM machining process is now being replaced by non-traditional machining processes. According to this paper, opt...

Wire electrical discharge machining (WEDM) is a method to cut conductive materials with a thin electrode that follows a programmed path. The electrode is a thin wire. Typical diameters range from .004" .012" (.10mm .30mm) although smaller and larger diameters are available. WEDM is a thermal machining process capable of accurately machining parts with varying hardness or complex shapes. WEDM pr...

In this paper the potential of recirculation EDM debris particles workpiece material into dielectric fluid to increase tool feed rate v f in drilling Electrical Discharge Machining (drilling-EDM) is experimentally investigated. Two-Channel electrodes made copper (Cu) and brass (CuZn) range from 1.0 mm 2.5 were used. The effect was investigated at a discharge current i e 25 A, duration t 50 μs d...

This paper examines ac motor shaft voltages and the resulting bearing currents when operated under pulse width modulation (PWM) voltage source inverters. The paper reviews the mechanical and electrical characteristics of the bearings and motor in relation to shaft voltages and bearing currents. A brief review of previous work is addressed, including the system model and experimental results. Th...

The safety and environmental aspects of a manufacturing process are important due to increased environmental regulations and life quality. In this paper, the concentration of aerosols in the breathing zone of the operator of Electrical Discharge Machining (EDM), a commonly used non traditional manufacturing process is presented. The pattern of aerosol emissions from this process with varying pr...

For successful commercial adaptation of the l-EDM (micro electro-discharge machining) process, there is a need to increase the process efficiency by understanding the process mechanism. This paper presents a model of the plasma discharge phase of a single discharge l-EDM event in deionized water. The plasma discharge is modeled using global model approach in which the plasma is assumed to be sp...

thermoelectric process in which heat energy of spark is used to remove material from the work piece. The machining process involves controlled erosion of electrically conducting material by the initiation of rapid and repetitive electrical spark discharges between the tool and workpiece separated by the dielectric medium. The present work is aimed at characterizing the electric discharge machin...

Nonconventional machining technologies have been found viable to manufacture various products from a wide range of engineering materials. Wire electric discharge (WEDM), also known as Wire-EDM, is one the important thermal type nonconventional technologies. Wire-EDM being preferably used by manufacturers produce biomedical devices including bio and dental implants. This paper presents an overvi...

We present a novel method for fabricating carbon fiber composite sandwich panels with lattice core construction by means of electrical discharge machining (EDM). First, flattop corrugated carbon fiber composite cores were fabricated by a hot press molding method. Then, two composite face sheets were bonded to each corrugated core to create precursor sandwich panels. These panels were transforme...

Electrical discharging machining (EDM) has become an outstanding approach in the field of metal cutting especially for conductive metals. It’s very difficult to cut the conducting metals with the aid of traditional machining. The main object of the present work has to investigate the effects of various EDM input parameters like pulse on time (Ton) pulse off time (TOFF) as well as the influence ...