Investigation of the impact of Rehbinder effect, electrical erosion and wire tension on wire breakages during WEDM

Федоров, А. А.; Блесман, А. И.; Postnikov, D. V.; Polonyankin, D. A.; Russkikh, G. S.; Linovsky, A. V.

doi:10.1016/j.jmatprotec.2018.02.002

Cited by 25 publications

(6 citation statements)

References 35 publications

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“…It indicates that with the increase in WF rate, SR first decreases then increases. SR increases at high WF rate due to more vibrations (Fedorov et al , 2018; Dabade and Karidkar, 2016).…”

Section: Resultsmentioning

confidence: 99%

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Performance evaluation of cryogenically treated wires during wire electric discharge machining of AISI D3 die tool steel under different cutting environments

Sharma

Goyal

Kumar³

2019

MMMS

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Purpose Tool steel (AISI D3) is a preferred material for industrial usage. Some of the typical applications of D3 tool steel are blanking and forming dies, forming rolls, press tools and punches bushes. It is used under conditions where high resistance to wear or to abrasion is required and also for resistance to heavy pressure rather than to sudden shock is desirable. It is a high carbon and high chromium steel. Therefore, wire electric discharge machining (WEDM) is used to machine this tool steel. The paper aims to discuss these issues. Design/methodology/approach The present experimental investigation evaluates the influence of cryogenically treated wires on material removal rate (MRR) and surface roughness (SR) for machining of AISI D3 steel using the WEDM process. Two important process responses MRR and SR have been studied as a function of four different control parameters, namely pulse width, time between two pulses, wire mechanical tension and wire feed rate. Findings It was found that pulse width was the most significant parameter which affects the MRR and SR. Better surface finish was obtained with cryogenically treated zinc coated wire than brass wire. Originality/value The review of the literature indicates that there is limited published work on the effect of machining parameters in WEDM in cryogenic treated wires. Therefore, in this research work, it was decided to evaluate the effect of cryogenically treated wires on WEDM.

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“…It indicates that with the increase in WF rate, SR first decreases then increases. SR increases at high WF rate due to more vibrations (Fedorov et al , 2018; Dabade and Karidkar, 2016).…”

Section: Resultsmentioning

confidence: 99%

“…With the increase in WT, the SR reduces. Increasing the WT helps to reduce the vibrations in the wire during machining operation, this results in a better quality of surface (Fedorov et al, 2018). (Fedorov et al, 2018;Dabade and Karidkar, 2016).…”

Section: Effect Of Wire Mechanical Tension On Srmentioning

confidence: 99%

Performance evaluation of cryogenically treated wires during wire electric discharge machining of AISI D3 die tool steel under different cutting environments

Sharma

Goyal

Kumar³

2019

MMMS

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“…It is possible to regulate the gap by changing the TE feed rate, but the optimal gap's values depend upon the concentration of erosion products (γ). Fig.8 shows extreme dependences of productivity on the gap and concentration of erosion (γ) [11,14]. For such type change in the productivity extremum, it is necessary to monitor the situation in the IEG constantly.…”

Section: Monitoring and Extreme Regulation Of Vibroacoustic Signal Pamentioning

confidence: 99%

“…The field of application of this technology significantly expands in the case, when 4 to 6 independent coordinates are used [9,10]. However, EDM process is married with some issues that lead to unsatisfactory quality of the surface being processed, tool-electrode (TE) breakage and damage of the equipment [11,12]. For example, frequent short circuit leads to increased roughness and decreased performance [13], and, thus, maintaining a stable and high-precision process without a continuous control of the discharge pulses in EDM is impossible [14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Dynamic Model of Electrical Discharge Machining and Algorithm of Extreme Control Through Acoustic Signal

et al. 2019

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Electrical discharge machining (EDM) is one of the most accurate methods for machining conductive materials and has a number of important applications. In the EDM process the occurrence of electric charges between cathode and anode is accompanied by vibroacoustic signals, which can be used to develop highly efficient control and diagnostics systems. Experimental studies and modelling of the dynamic system of the EDM process carried out in this study show that parameters of acoustic signals can be used to estimate the current productivity and risks of the tool-electrode breakage and to optimize the tool feed rate. The obtained results of allows using acoustic signals in the control system of the tool electrode feed rate to prevent its breakage, and also setting the interelectrode gap to maximum productivity.

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“…Вследствие концентрации локальных разрядов в этой области проволоки может возникнуть ее перегрев и обрыв [4], но в современном оборудовании проблема концентрации разряда решена [5]. В работе [6] было показано, что суммарное действие температурной и механической составляющих напряжения не превышает предела прочности эродированной латунной проволоки и не приводит к ее обрывам.…”

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Investigation of Debris Impact on Welding Bridge Occurrence and Wire Breakages During Wedm

Федоров

Polonyankin

Bredgauer³

et al. 2018

DSMM

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191тора исчерпывающей информацией о состоянии производственного процесса и является тем, что отличает КИМ от ручных измерительных приборов всех видов.Для того, чтобы была возможность проверить результаты измерений КИМ, принимая их за реальные, была рассмотрена методическая составляющая погрешности измерения на КИМ и оценка неопределенности измерения, которая показала наибольшую кучность и стабильность измерений при положении наконечника 90°. Худшие результаты получались при измерении в вертикальном положении измерительного наконечника. Таким образом, для определения достоверной методики проведения измерений на КИМ необходимо было провести ряд представленных в статье экспериментов, которые показывают методическую погрешность, значительно влияющую на результат измерения. СПИСОК ЛИТЕРАТУРЫ 1. Tignibidin A.V. The process of measuring geometric parameters of details on cylindrical grinding machines using active control device // 2014 Dynamics of Systems, Mechanisms and Machines (Dynamics) 7005699.

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Investigation of the impact of Rehbinder effect, electrical erosion and wire tension on wire breakages during WEDM

Cited by 25 publications

References 35 publications

Performance evaluation of cryogenically treated wires during wire electric discharge machining of AISI D3 die tool steel under different cutting environments

Performance evaluation of cryogenically treated wires during wire electric discharge machining of AISI D3 die tool steel under different cutting environments

Dynamic Model of Electrical Discharge Machining and Algorithm of Extreme Control Through Acoustic Signal

Investigation of Debris Impact on Welding Bridge Occurrence and Wire Breakages During Wedm

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