Study of vibration-assisted micro-EDM—The effect of vibration on machining time and stability of discharge

Endo, Takashi; Tsujimoto, Takayuki; Mitsui, Kimiyuki

doi:10.1016/j.precisioneng.2007.09.003

Cited by 111 publications

(52 citation statements)

References 4 publications

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“…To increase the flushing effect during the EDM, an ultrasonic vibration has been superposed on the normal electrode movement [5]. Furthermore, to flush out debris from the machined hole, a vibration-assisted machining also has been introduced to micro-EDM using piezoelectric [6] In this paper, the developed 3-DOF controlled, highspeed, high-precision, local actuator is attached to an electrical discharge machine to experimentally confirm the increase in the machining speed. Then, the relationships between the machining speed, the amplitude and the frequency of the electrode vibration are discussed.…”

Section: Introductionmentioning

confidence: 99%

Improvement of EDM Machining Speed by Using Magnetic/Piezoelectric Hybrid Drive Actuator

Zhang

Uchiyama

2017

MATEC Web Conf.

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Abstract. The objective of this research is to achieve high-speed electrical discharge machining (EDM) of small holes using a high-speed, high-precision, 3-DOF controlled, magnetic/piezoelectric hybrid drive actuator. In this paper, the proposed actuator was attached to the conventional electrical discharge machine, and the increase in the machining speed using the actuator was experimentally confirmed. The relationships between the machining speed, the amplitude and the frequency of the electrode vibration were discussed. Experimental results show that the use of the proposed actuator can speedily adjust the distance between the electrode and the workpiece, and the machining speed was increased by 138% compared with the conventional EDM. Moreover, the machining speed using the actuator also was increased as the changes of the amplitude and the frequency of the electrode vibration, and it was increased by 76% compared to without the electrode vibration.

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Section: Introductionmentioning

confidence: 99%

Improvement of EDM Machining Speed by Using Magnetic/Piezoelectric Hybrid Drive Actuator

Zhang

Uchiyama

2017

MATEC Web Conf.

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“…Development of flushing methods has been the focus of research in the last decade to enhance the debris removal from the sparking gap [7,8]. The study on the effect of highfrequency vibration of the tool electrode on EDM has been undertaken since the mid 80s, and some promising results have been acquired [1,6,[9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…Previous researches in micro-EDM assisted low-frequency vibration of tool electrode by using small PZT (Piezoelectric Transducer) has proven to effectively remove debris and inhibit adhesion between electrodes and gave remarkable reduction of machining time [7,8]. Since the energy per discharge pulse in micro-EDM process is much smaller than in EDM process, the low-frequency vibration can effectively increase the material removal rate [7,8].…”

Section: Introductionmentioning

confidence: 99%

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Effect of low-frequency vibration on workpiece in EDM processes

et al. 2011

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High-frequency vibration aided EDM has become one of the ways to increase material removal rate in EDM process, due to the flushing effect caused by vibration. However, utilizing high-frequency vibration, especially in ultrasonic range consumes a lot of setup cost. This work presents an attempt to use a low-frequency vibration on workpiece of stainless steel (SS 304) during EDM process. The workpiece was vibrated with variations of low-frequency and low-amplitude. The results show that the application of low-frequency vibration in EDM process can be used to increase the material removal rate, and decrease the surface roughness and tool wear rate.

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“…Since in µ-EDM processes due to inappropriate flushing out of the debris, frequent adhesion between the tool electrode and the workpiece prevents the continuation of machining, consequently feed back movements for the table are required in order to remove the pollutant from the sparking gap. Thus, a longer machining time is needed for machining in order to achieve good surface quality [1].…”

Section: Introductionmentioning

confidence: 99%

Effect of micro MoS<sub>2</sub> powder mixed dielectric fluid on surface quality and material removal rate in micro-EDM processes

Prihandana

Mahardika

Hamdi

et al. 2009

Trans. Mat. Res. Soc. Japan

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Efficiency is currently becomes the main problem in µ-EDM processes. To have high efficiency in µ-EDM processes means that the workpiece machined is not only having good surface quality but also need to have high material removal rate during the machining process. In order to increase the efficiency in µ-EDM processes, micro MoS 2 powder mixed dielectric fluid is proposed as one of the solution. This study investigated the effect of micro MoS 2 powder mixed dielectric fluid with focusing on obtaining good surface quality and higher material removal rate. It was observed that by suspending micro MoS 2 powder can produce better surface quality by removing black spot in the center of surface machined. The better in surface quality also followed by increasing in material removal rate up to 70 % in certain of combination of tool electrode and workpiece material.

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Study of vibration-assisted micro-EDM—The effect of vibration on machining time and stability of discharge

Cited by 111 publications

References 4 publications

Improvement of EDM Machining Speed by Using Magnetic/Piezoelectric Hybrid Drive Actuator

Improvement of EDM Machining Speed by Using Magnetic/Piezoelectric Hybrid Drive Actuator

Effect of low-frequency vibration on workpiece in EDM processes

Effect of micro MoS<sub>2</sub> powder mixed dielectric fluid on surface quality and material removal rate in micro-EDM processes

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