Electrothermal energy distribution model for EDM drilling of HSLA steels

Orona-Hinojos, J. M.; Hurtado-Delgado, Eduardo; Hung, Wayne; Alvaréz-Vera, M.; Perez-Villanueva, Pedro

doi:10.1007/s00170-017-0757-4

Cited by 2 publications

(7 citation statements)

References 27 publications

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“…Where a division of the electrical signal is seen in two energy regions: in the first section of the current profile, up to where the current plateau ends, the energy magnitude E s t ðÞis obtained, which is determined by the process ED; while the current decays exponentially to a value close to the nominal current I o , it is possible to obtain a second region of energy E d t ðÞ , which results from the EC process, for each pulse or duty cycle with a duration of 28 μs. [16].…”

Section: Discussion and Resultsmentioning

confidence: 99%

“…Figure 7 shows the profiles of the increase in MRR for Figure 6. Showed electrical signal performance using a 25 kHz pulsed with DC 70% during (a) EDM and (b) hybrid ED/PEC [16]. [16].…”

Section: Discussion and Resultsmentioning

confidence: 99%

“…Showed electrical signal performance using a 25 kHz pulsed with DC 70% during (a) EDM and (b) hybrid ED/PEC [16]. [16].…”

Section: Discussion and Resultsmentioning

confidence: 99%

“…As a result, the machinability constant K m mm 3 Á m À2 Á J À1 ÂÃ of this system is obtained the Eq. (1), as was written in the research theoretical model S-ED/PEC [16].…”

Section: Mathematical Model Of Simultaneous Ed/pec Assistancementioning

confidence: 99%

“…Tool-workpiece scheme for S-ED/PEC drilling under two divided pulse conditions as (a) Δt on1 for ED and (b) Δt on2 for EC [16].…”

Section: Figurementioning

confidence: 99%

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Innovative Double Cathode Configuration for Hybrid ECM + EDM Blue Arc Drilling

Orona-Hinojos¹

2021

Drilling Technology

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Electrical discharge machining is a machining method generally used for machining hard metals, those that would be high cost or have poor performance to machine with other techniques using, e.g., lathes, drills, or conventional machining. Therefore, also known as thermal processes like EDM, Plasma or Laser cutting can be used in drilling operations with poor metallurgical quality on cutting edge and will be necessary complement with other processes such as electrochemical machining (ECM). Both ECM and EDM processes use electrical current under direct-current (DC) voltage to electrically power the material removal rate (MRR) from the workpiece. However in ECM, an electrically conductive liquid or electrolyte is circulated between the electrode(s) and the workpiece for permitting electrochemical dissolution of the workpiece material. While the EDM process, a nonconductive liquid or dielectric is circulated between the cathode and workpiece to permit electrical discharges in the gap there between for removing the workpiece material. Both are principle too different, EC using an electrical conductive and ED using a dielectric medium. But exist a way that can to do a combination of Pulsed EC + ED Simultaneous and allowing the coexist both process, in a semidielectric medium, where both condition exist in the same time, therefore in this hybrid is possible create a tooling device dual cathode for drilling process with promissory advantages fast hole for this innovative hybrid ECDM Simultaneous, this hybrid it’s knew as blue arc drilling technology.

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Section: Discussion and Resultsmentioning

confidence: 99%

“…Figure 7 shows the profiles of the increase in MRR for Figure 6. Showed electrical signal performance using a 25 kHz pulsed with DC 70% during (a) EDM and (b) hybrid ED/PEC [16]. [16].…”

Section: Discussion and Resultsmentioning

confidence: 99%

“…Showed electrical signal performance using a 25 kHz pulsed with DC 70% during (a) EDM and (b) hybrid ED/PEC [16]. [16].…”

Section: Discussion and Resultsmentioning

confidence: 99%

“…As a result, the machinability constant K m mm 3 Á m À2 Á J À1 ÂÃ of this system is obtained the Eq. (1), as was written in the research theoretical model S-ED/PEC [16].…”

Section: Mathematical Model Of Simultaneous Ed/pec Assistancementioning

confidence: 99%

“…Tool-workpiece scheme for S-ED/PEC drilling under two divided pulse conditions as (a) Δt on1 for ED and (b) Δt on2 for EC [16].…”

Section: Figurementioning

confidence: 99%

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