Surface Roughness Research of Piezoelectric Self-adaptive Micro-EDM

Fu, Xiuzhuo; Gao, Liying; Zhang, Qinhe; Liu, Qingyu

doi:10.1016/j.procir.2016.02.252

Cited by 11 publications

(4 citation statements)

References 7 publications

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“…This research no comparable with previous research. A research conducted on 316L Stainless steel and copper carbide electrode has conclude that variable has significant effect are pulse on time, servo voltage and servo speed [12] this research using metal electrode, beside we using non-metal metal electrode and research observe process variable on micro EDM that open voltage and capacitor have the most effect on surface roughness because these two parameters are the main influence factors of discharge energy [14], this research using micro EDM and we using different parameter process. Although due on limitation of ZNC EDM Aristech LS-550 parameter process comparing on previous research.…”

Section: Resultsmentioning

confidence: 89%

“…In advance material manufacturing surface roughness have significant factor, due to friction, contact deformation, tightness of contact join, positional accuracy, tight tolerance heat and electric current conduction [12] [13]. Based on that statement we can conclude surface roughness is critical factor on EDM sinking [14]. On this research, surface roughness data obtaining by measurement on surface workpiece using mitutoyo surftest 301.…”

Section: Surface Roughnessmentioning

confidence: 77%

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Optimization Multi Response on Electrical Discharge Machining Sinking Process Using Taguchi-Grey-Fuzzy Methods

Bisono

Yusron

2020

ijseit

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Electronic Discharge Machining (EDM) sinking applied widely in advance material manufacturing, every process parameter will count on this company. Their performance evaluated by some parameters such as surface roughness and tool wear ratio. Then they will be a dependent variable on this research. Independent variables on this research are electrode polarization, gap voltage, duty factor and pulse current. Every variable has three levels, except electrode polarization has two levels. This research conducting using Taguchi matrix orthogonal L18 (21×33) methods. The aim of this experiment is to evaluate optimization parameter process on EDM sinking, using Taguchi-Grey-Fuzzy methods. Characteristics response optimal applied are ‘smaller better’ for surface response roughness and tool wear ratio. This research using DAC tool steel as work-piece. DAC is most widely used as die for aluminum and zinc die-casting. The aim of this research is finding contribution of variable in EDM sinking parameter. Result of this research show contribution from variable process to reduce variance total observed response simultaneously, in order are electrode polarization on 49,53%, gap voltage on 23,52%, duty factor on 5,45% and pulse current on 9,92%. From validated optimization in confirmation experiment, to conclude combination variable process optimal response value is electrode polarization on positive, gap voltage at 50V, duty factor at 0.5 and pulse current at 12A.

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Section: Resultsmentioning

confidence: 89%

Section: Surface Roughnessmentioning

confidence: 77%

Optimization Multi Response on Electrical Discharge Machining Sinking Process Using Taguchi-Grey-Fuzzy Methods

Bisono

Yusron

2020

ijseit

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“…Although the average film roughness is less than 2 nm, or less than 13% of the film thickness, the entire surface cannot get effectively into contact, resulting in a contact resistance variation between 80 and 200 mΩ [12]. The limitation of the current flow through smaller contact spots and the increase in the energy losses over the contact resistance has been further proven [13]. Thus, surface smoothness becomes one of the crucial conditions to guarantee the high performance of the piezoelectric energy harvesters.…”

Section: Introductionmentioning

confidence: 99%

Study of Sputtered ZnO:Ga2O3 Films for Energy Harvesting Applications

et al. 2020

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Thin films of ZnO:Ga2O3 (ZGO) were deposited by radio frequency (RF) sputtering at voltages of 0.5, 0.9 and 1.1 kV. The films were studied with respect to their suitability in flexible piezoelectric nanogenerators. The analysis of the spectroscopic and microscopic results showed that piezoelectric features were revealed for the films grown at all sputtering voltages, but the most favorable morphology in terms of low roughness was achieved at 1.1 kV. The effect of the sputtering voltage on the films crystallinity and lattice strain was studied. It was found that the increasing sputtering voltage promoted the films crystallization. Additionally, the presence of oxygen vacancies in the piezoelectric films was negligible as it is not a major factor affecting their performance. The electrical measurements of the Ag/ZnO:Ga2O3/Ag harvester on a flexible substrate in the low-frequency range showed a piezoelectric voltage of 414 mV, a current of 10.4 µA and an electric power output of 1.4 µW at a mass load of 100 g. These results were achieved by a simple architecture of a single piezoelectric layer with a relatively small size of 3 cm2 and small piezoelectric film thickness (600 nm) containing lead-free material. It was proven that the sputtered ZGO films are suitable for energy harvesting elements and their performance could be tuned by the sputtering voltage. Another possible application of the proposed device, excluding low-frequency vibrational harvesting, could be a pressure sensor or strain gauge, due to the good linearity of the electrical parameter dependences on the strain.

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“…Wire-EDM is an essential non-conventional machining process (thermo-electrical process), which is widely used in the aerospace [14,15], ordnance [16], automobile [17] and general engineering industries [13], because of a series of merits, such as workpieces with a wide range of hardness, the fact that there is no macro-mechanical force during the process, its high degree of precision, and so on [18,19]. The most significant benefit of the wire-EDM is its independence of the machined material's mechanical properties and its independence from the cutting force.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of Wire-EDM Process Parameters for Surface Roughness in the Machining of Carbon Steel 1017 and Aluminum Alloy 6060

Alsoufi¹,

Suker²

2018

AJME

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Electrical discharge machining is an old technology that has been used for old manufacturing processes. Nowadays, the modernized version of the machine is used to manufacture different objects using a wire feed. The parameters in which the machine operates have diverse effects on product quality and surface finish. This paper investigates the performance of a wire electrical discharge machining process for different wire feed rates. The process is a non-traditional machining method. Several tests have been performed considering a carbon steel 1017 and aluminum alloy 6060 machined via Wire-EDM. By using different wire feed rates (3 mm/min, 5 mm/min and 7 mm/min), the average surface roughness, R a , has been investigated in this study. Results show that the wire feed rate is a significant variable to the surface quality finish. The surface roughness of the test target materials increased as this variable increased. The present study recommends setting the wire feed rate as low as possible with the aim of improving results in the surface quality finish. The obtained results and some of the most necessary parameters affecting the manufacturing process of wire-EDM are briefly defined and are then discussed in detail in this study.

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Surface Roughness Research of Piezoelectric Self-adaptive Micro-EDM

Cited by 11 publications

References 7 publications

Optimization Multi Response on Electrical Discharge Machining Sinking Process Using Taguchi-Grey-Fuzzy Methods

Optimization Multi Response on Electrical Discharge Machining Sinking Process Using Taguchi-Grey-Fuzzy Methods

Study of Sputtered ZnO:Ga2O3 Films for Energy Harvesting Applications

Experimental Investigation of Wire-EDM Process Parameters for Surface Roughness in the Machining of Carbon Steel 1017 and Aluminum Alloy 6060

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