A novel micro-EDM—piezoelectric self-adaptive micro-EDM

Fu, Xiuzhuo; Zhang, Qinhe; Gao, Liying; Liu, Qingyu; Wang, Kan; Zhang, Yu-Wei

doi:10.1007/s00170-015-7939-8

Cited by 17 publications

(6 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A decrease in ∆ impairs the yield of erosion products, reduces the productivity, increase accumulation of slag, and provoke short circuits. Electrical discharge machining cannot be effective without automatic regulation of the gap [61,62]. For regulation of the optimal value of the gap, the rate of particle formation M p in the discharge gap should be equal to the rate of particles leaving the gap M ex .…”

Section: Adaption Of the In-situ Monitoring Methods For The Needs Of Ementioning

confidence: 99%

On Adaptive Control for Electrical Discharge Machining Using Vibroacoustic Emission

et al. 2018

View full text Add to dashboard Cite

The article is related to the research of the parameters of vibroacoustic emission for development of the monitoring and adaptive control system for electrical discharge machining. The classical control system based on a response of electrical parameters does not give an adequate data in the cases of a new class of materials processing as conductive ceramics reinforced by conductive nano additives and carbon nanotubes and whiskers. The idle pulses, which are working on the destruction of the erosion products in the gap, count as working pulses. The application of the monitoring and control tools based on vibroacoustic emission gives adequate data about conditions in the working zone. The developed system is available to count only impulses involved in working on the destruction of the workpiece. The experiments were conducted on the samples of materials with a low melting point as austenitic steel and aluminum alloy, and hard alloys. The records of vibroacoustic signals were analyzed for detection of the monitoring and adaptive control criteria.

show abstract

Section: Adaption Of the In-situ Monitoring Methods For The Needs Of Ementioning

confidence: 99%

On Adaptive Control for Electrical Discharge Machining Using Vibroacoustic Emission

et al. 2018

View full text Add to dashboard Cite

show abstract

“…15 Schematic view of three-dimensional long-curved hole machining system [13] Fig. 16 Schematic drawing of suspended ball mechanism [14] Fig. 17 Control of electrode ball position [176] curve hole in 2015 [14].…”

Section: Edm Making Of Curved Holesmentioning

confidence: 99%

“…For example, its machining efficiency is lower than that of the CNC method in drilling holes on workpiece made of conventional materials, and the holes made by EDD may be accompanied by thermal defects such as the recast layer, high residual stress and geometric errors, including overcut (OC) and taper. These problems result in poor hole quality and increased manufacturing costs [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

The state of the art of electrical discharge drilling: a review

Mao

Almeida

et al. 2022

Int J Adv Manuf Technol

View full text Add to dashboard Cite

Electrical discharge machining (EDM) is one of the most widely used non-conventional methods to machine electrically conductive materials in the manufacturing industry because of its strong capability in machining difficult-to-cut materials irrespective of their strength and hardness. Electrical discharge drilling (EDD) is an important variant of EDM. Due to the limitation of conventional drilling processes, special holes, particular those with high aspect ratios on hard-to-cut materials, can only be drilled by EDD. Extensive research has been carried out to improve the efficiency and quality of the EDD process by using different approaches, such as assisted EDD and powder-mixed EDM drilling aiming to improve the material removal rate (MRR), tool wear rate (TWR), surface quality and accuracy. This paper provides a comprehensive review of the EDD process. Different methods were compared; the advantages and disadvantages of each process were summarised; state-of-the-art technologies and the latest development were introduced, and research trends and new directions were presented.

show abstract

“…There were improvement in machining stability, controllability and surface finish by low inductance, although it was not improving the MRR of workpiece; which is a key drawback of their developed EDM process. To achieve advancement in EDM mechanism, Fu et al [11] have designed a novel piezoelectric self-adaptive system. In this mechanism they have achieved selfelimination of short circuit and reduced the number of short circuit.…”

Section: Introductionmentioning

confidence: 99%

Characterization and Evaluation of Novel Maglev EDM with Existing EDM

Shukla

Sisodiya

Bajpai

2022

Preprint

View full text Add to dashboard Cite

At present, the machining performance of the existing EDM technology depends upon the commonly used pulsed power supply and gap control mechanism. The complexity and the higher cost of the above said vital components, reflected in the product cost. A simple electrical circuit has been applied to control the voltage and the electric magnet so that the tool electrode can levitate over the workpiece at the desired distance (electrode gap). A prototype is fabricated with the DC power supply and the maglev levitation mechanism. To evaluate novel maglev EDM technology with the existing EDM technology, experiments were conducted on Ti-6Al-4V alloy with a brass tool. The discharge waveform of maglev EDM has shown the discharge voltage and current and the absence of short-circuit at high duty factor. A predictive model is formulated by dimensional analysis based on MRR and average surface roughness. The experimental result of conventional EDM from the literature were used to prepare the model. The maglev EDM is showing higher MRR and surface roughness than the prediction. Surface morphology showed similar surfaces as formed in EDM. The specific energy analysis showed that the developed maglev EDM performs in reported data range. It is noted that the proposed technology is in its early stage and the performance is significantly comparable with the existing technology. Therefore, it is expected that the research in this area may help to develop an economically sustainable alternative to the existing costly and complex EDM technology.

show abstract

A novel micro-EDM—piezoelectric self-adaptive micro-EDM

Cited by 17 publications

References 16 publications

On Adaptive Control for Electrical Discharge Machining Using Vibroacoustic Emission

On Adaptive Control for Electrical Discharge Machining Using Vibroacoustic Emission

The state of the art of electrical discharge drilling: a review

Characterization and Evaluation of Novel Maglev EDM with Existing EDM

Contact Info

Product

Resources

About