2014
DOI: 10.1007/s00170-014-6540-x
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Modeling and analysis of crater formation during wire electrical discharge turning (WEDT) process

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Cited by 45 publications
(26 citation statements)
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“…The mechanism of formation of these craters consists in the formation of individual electric discharges, which cause the material to erode in the form of tiny balls, which are subsequently washed away from the cutting point by a dielectric liquid. The simulations of single crater formation in WEDM have been performed by several authors, such as Han [8] or Giridharan [9]. In addition to the erosion itself, the workpiece material is also removed by evaporation due to very high temperatures at the cutting point, ranging from 10,000 to 20,000 • C [10].…”
Section: Introductionmentioning
confidence: 99%
“…The mechanism of formation of these craters consists in the formation of individual electric discharges, which cause the material to erode in the form of tiny balls, which are subsequently washed away from the cutting point by a dielectric liquid. The simulations of single crater formation in WEDM have been performed by several authors, such as Han [8] or Giridharan [9]. In addition to the erosion itself, the workpiece material is also removed by evaporation due to very high temperatures at the cutting point, ranging from 10,000 to 20,000 • C [10].…”
Section: Introductionmentioning
confidence: 99%
“…The geometric accuracy of the machined workpiece was affected by wire deflection and direction of axial feed motion (as in WEDG), the workpiece was prone to deflect more due to gravity as compared to that of longitudinal feed as in WEDT process. Similar to WEDG, WEDT makes it possible to generate precise cylindrical forms, micro pins, micro shafts, and any axisymmetric form on conductive materials, regardless of their hardness [1,2]. Very few attempts were made to study the influence of process parameters on WEDT process by researchers [3,5,6].…”
Section: Wire Electrical Discharge Turning (Wed Turning)mentioning
confidence: 99%
“…Machining these materials results in high temperature rise, undesirable residual stress built up in workpiece, rapid tool wear, and increased machining cost. The need for non-traditional machining process arises to meet the above requirements [1][2][3]. Based on the source of energy involved in material removal, non-traditional machining process can be categorised into electrochemical process (metal removal by chemical dissolution), mechanical process (low amplitude and high frequency of abrasives impacting the workpiece), and electrothermal process (metal removal by melting and vaporisation) [4][5][6][7].…”
Section: Introductionmentioning
confidence: 99%
“…The results show that gas discharges triggered by streamers have higher plasma expansions than sparks generated from vacuum breakdown mechanisms (Macedo, Wiessner, Hollenstein, Kuster, & Wegener, 2016). Giridharan et al used FEM to simulate the crater for different plasma flushing efficiencies and validated the model by experiments (Giridharan & Samuel, 2015). Assarzadeh et al simulated the mechanism of crater formation due to a single discharge.…”
Section: Introductionmentioning
confidence: 99%