An Investigation into Laser-Assisted Electrochemical Discharge Machining of Transparent Insulating Hard-Brittle Material

Zhao, Douyan; Zhang, Zhaoyang; Zhu, Hao; Cao, Zenghui; Xu, Kun

doi:10.3390/mi12010022

Cited by 20 publications

(8 citation statements)

References 29 publications

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“…10% reduction in overcut and tapering was obtained with laser assistance when compared with normal ECDM. Zhao et al [134] used the laser and ECDM separately to enhance quality of machined surfaces. They used two methods of machining, ECDM pre-process, and laser pre-process.…”

Section: Laser-assisted Ecdmmentioning

confidence: 99%

A review on micro-drilling by electrochemical discharge machining

2023

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The electrochemical discharge machining (ECDM) process is a hybrid of electric discharge machining and electrochemical machining. It was developed to overcome the limitations of other machining technologies on the micromachining of non-conducting materials. The performance of the process depends on various parameters. In this review article, the implications of input parameters on machining performance have been covered in detail. It is observed that various input parameter levels give different rate and quality of machining. A higher applied voltage and electrolyte concentration give a higher material removal rate but has adverse effects such as overcutting and heat-affected zone. The optimum process parameters for better material removal rate and surface quality have been discussed. The ECDM technique has undergone numerous modifications to meet various machining needs. The main ECDM process variants have been thoroughly examined. A wide variety of non-conducting materials, including glass, ceramics, and reinforced composites, have been successfully machined using the ECDM technique. The applications of the ECDM process have been examined and addressed. Potential future research directions and present advancements have also been presented.

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Section: Laser-assisted Ecdmmentioning

confidence: 99%

A review on micro-drilling by electrochemical discharge machining

2023

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“…It is difficult to obtain good surface qualities and high−aspect ratio microstructures using conventional machining methods. ECDM technology can overcome the limitations and process such non−conductive brittle materials in a precise and efficient manner [ 2 , 3 , 4 , 5 ].…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Discharge Phenomena in Electrochemical Discharge Machining Process

et al. 2023

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Electrochemical discharge machining (ECDM) is a promising non−traditional processing technology used to machine non−conductive materials, such as glass and ceramic, based on the evoked electrochemical discharge phenomena around the tool electrode. The discharge in ECDM is a key factor that affects the removal of material. Moreover, the discharge current is an important indicator reflecting the discharge state. However, the discharge characteristics remain an open topic for debate and require further investigation. There is still confusion regarding the distinction of the discharge current from the electrochemical reaction current in ECDM. In this study, high−speed imaging technology was applied to the investigation of the discharge characteristics. By comparing the captured discharge images with the corresponding discharge current, the discharge can be classified into three types. The observations of the discharge effect on the gas film indicate that a force was exerted on the gas film during the discharge process and the shape of the gas film was changed by the force. In addition, the energies released by different types of discharge were calculated according to the voltage and current waveforms. The discharge frequency was found to increase with the increase in applied voltage and the frequency of the second type of discharge was approximately equal to that of the third type when the applied voltage was higher than 40 V.

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“…9,10 A cool and lubricated environment can reduce the cutting temperature and improve the quality of the machined surface. The second method is external auxiliary equipment, such as laser-assisted machining, 11,12 electric pulse-assisted machining, 13 and jet-assisted high-speed machining. 14 They focus on changing the mechanical-mechanical properties of the workpiece material or inducing localized material phase transitions to improve the machinability of difficult-to-machine materials.…”

Section: Introductionmentioning

confidence: 99%

Simulation and experiment on the effects and mechanism of variable-length restricted contact tool

Li,

Zhong,

Zhang

et al. 2023

Advances in Mechanical Engineering

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Difficult-to-machine materials such as stainless steel are widely used in the construction industry, because of their excellent mechanical properties and corrosion resistance. However, the poor tool-chip contact environment, severe tool wear, and heavy chip accumulation inhibit the machining efficiency. In this paper, 316L austenitic stainless steel was selected to investigate the effect of a variable-length restricted contact tool (VL-RCT), aiming at reducing the cutting temperature and increasing the tool life. A finite element simulation model of restricted contact cutting was established to investigate the machining parameters and restricted contact parameters on cutting performances and to clarify the mechanism of the VL-RCT in the cutting process. Additionally, cutting experiments were conducted to verify the cutting process mechanism. The results showed that the variable restricted contact structure efficiently reduced the cutting force and cutting temperature and improved the cutting performances of austenitic stainless steel. Both numerical simulation and cutting experiments reported that the trapezoidal restricted contact structure improved the cutting performance the best. Accordingly, this research provided theoretical guidance for the optimization of tool structure and the selection of cutting parameters, as well as a solid foundation for the future development of relevant design theories and methods for high-performance tools.

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An Investigation into Laser-Assisted Electrochemical Discharge Machining of Transparent Insulating Hard-Brittle Material

Cited by 20 publications

References 29 publications

A review on micro-drilling by electrochemical discharge machining

A review on micro-drilling by electrochemical discharge machining

Experimental Investigation of Discharge Phenomena in Electrochemical Discharge Machining Process

Simulation and experiment on the effects and mechanism of variable-length restricted contact tool

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