Experimental study of rotary magnetic field-assisted dry EDM with ultrasonic vibration of workpiece

Teimouri, Reza; Baseri, Hamid

doi:10.1007/s00170-012-4573-6

Cited by 79 publications

(34 citation statements)

References 16 publications

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“…Cryogenic cooling and treatment method can reduce EWR in Ti-6Al-4V and Ti 6246 alloy EDM [23,24]. Ultrasonic, vibratory, rotary and magnetic field can also improve MRR in EDM [25][26][27][28][29][30]. The residual stresses and white layer have a great relationship with the type of the EDM dielectric [31,32].…”

Section: Introductionmentioning

confidence: 99%

Experimental study on green electrical discharge machining in tap water of Ti–6Al–4V and parameters optimization

Tang

2013

Int J Adv Manuf Technol

101

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Ti-6Al-4V is widely used in the aerospace, automobile, and biomedical fields, but is a difficult-to-machine material. Electrical discharge machining (EDM) is regarded as one of the most effective approaches to machining Ti-6Al-4V alloy, since it is a non-contact electro-thermal machining method, and it is independent from the mechanical properties of the processed material. This paper aims to combine grey relational analysis and Taguchi methods to solve the problem of EDM parameters optimization. From the viewpoint of health and environment, tap water as working fluid has good working environment, since it does not release harmful gas. The process parameters include discharge current, gap voltage, lifting height, negative polarity and pulse duty factor. The electrode wear ratio (EWR), material removal rate (MRR) and surface roughness (SR) as objective parameters are chosen to evaluate the whole machining effects. Experiments were carried out based on Taguchi L 9 orthogonal array and grey relational analysis, and then verified the results through a confirmation experiment. Compared the machining parameters A 1 B 1 C 3 D 2 with A 1 B 2 C 2 D 2 , MRR increased from 1.28 mm 3 /min to 2.38 mm 3 /min, EWR decreased from 0.14 to 0.10 mm 3 /min and SR decreased from Ra 2.37 μm to Ra 1.93 μm. The process parameters sequenced in order of relative importance are: the ratio of pulse width to pulse interval, discharge current, lifting height and gap voltage. The results showed that using tap water machining Ti-6Al-4V material can obtain high MRR, decrease the machining cost and have no harmful to the operators and the environment.

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Section: Introductionmentioning

confidence: 99%

Experimental study on green electrical discharge machining in tap water of Ti–6Al–4V and parameters optimization

Tang

2013

Int J Adv Manuf Technol

101

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“…Fard et al [26] and Teimouri and Baseri [27] emphasized the thorough investigation of green machining methods to address high wastage and the production of toxic substances during manufacturing.…”

Section: Mahdavinejad Andmentioning

confidence: 99%

“…Several researchers, such as Jeswani [12], Wong et al [13], Kumar et al [14], and Han et al [15] used graphite powder for EDM of DTM materials and found it significantly useful. This process assisted us in selecting the graphite powder as abrasive in EDM of WC-Co. Table 1 [3,[17][18][19][20][21][22][23][24][25][26][27][28] describes the work done and gaps in literature with respect to EDM of WC. Jeswani [12] investigated EDM with distilled water and kerosene oil as dielectric fluid.…”

Section: Introductionmentioning

confidence: 98%

“…Many studies have reported on the production and related aspects of the EDM process, but only a few studies [22][23][24][25][26][27] that considered the environmental, safety, and health hazards of the EDM process were undertaken. Furthermore, studies presented in the literature focused on the effects of a single dielectric fluid, namely, kerosene oil; no study has investigated the effects of different dielectric fluids, especially water-based dielectric fluids for the EDM process.…”

Section: Introductionmentioning

confidence: 99%

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Assessing the effects of different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine material (WC-Co)

Singh

Sharma

2016

Front. Mech. Eng.

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Electrical discharge machining (EDM) is a well-known nontraditional manufacturing process to machine the difficult-to-machine (DTM) materials which have unique hardness properties. Researchers have successfully performed hybridization to improve this process by incorporating powders into the EDM process known as powder-mixed EDM process. This process drastically improves process efficiency by increasing material removal rate, micro-hardness, as well as reducing the tool wear rate and surface roughness. EDM also has some input parameters, including pulse-on time, dielectric levels and its type, current setting, flushing pressure, and so on, which have a significant effect on EDM performance. However, despite their positive influence, investigating the effects of these parameters on environmental conditions is necessary. Most studies demonstrate the use of kerosene oil as dielectric fluid. Nevertheless, in this work, the authors highlight the findings with respect to three different dielectric fluids, including kerosene oil, EDM oil, and distilled water using one-variable-at-a-time approach for machining as well as environmental aspects. The hazard and operability analysis is employed to identify the inherent safety factors associated with powder-mixed EDM of WC-Co.

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“…Lin et al [10] presented a magnetic force-assisted EDM process to help the expelling debris from the machining gap fast and easily and obtain the machining stability when machining SKD 61 steel using copper tool electrode. Reza Teimouri et al [11] researched the rotary magnetic field-assisted dry EDM with ultrasonic vibration of workpiece. They believed that magnetic field has positive effects on the material removal rate and surface roughness.…”

Section: Introductionmentioning

confidence: 99%

Design of a Magnetic Field Generator for Compression Plasma Discharge Channel of Micro EDM Deposition

Peng

et al. 2015

IJCA

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Experimental study of rotary magnetic field-assisted dry EDM with ultrasonic vibration of workpiece

Cited by 79 publications

References 16 publications

Experimental study on green electrical discharge machining in tap water of Ti–6Al–4V and parameters optimization

Experimental study on green electrical discharge machining in tap water of Ti–6Al–4V and parameters optimization

Assessing the effects of different dielectrics on environmentally conscious powder-mixed EDM of difficult-to-machine material (WC-Co)

Design of a Magnetic Field Generator for Compression Plasma Discharge Channel of Micro EDM Deposition

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