Machined Surface Quality in Nano Aluminum Mixed Electrical Discharge Machining

Abdul-Rani, Ahmad Majdi; Nanimina, Alexis Mouangué; Ginta, Turnad Lenggo; Razak, Muhammad Al’Hapis Abdul

doi:10.1016/j.promfg.2016.12.061

Cited by 34 publications

(17 citation statements)

References 8 publications

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“…The process factors are divided into the electrical and non-electrical factors on which the machined surface characteristics depend. Current, applied voltage, pulse-on duration, and pulse-off duration are the most influential electrical variables, while the non-electrical input vari-ables include the physical properties of the tools, working liquid, particle size, and the amount of powder added [11,23,[181][182][183][184][185][186][187][188]. Considering that a PM-EDM system is complex in nature, optimization of the process factors is required to obtain the optimum responses.…”

Section: Pm-edm Process Variables Affecting the Treated Surface Propertiesmentioning

confidence: 99%

“…Powder mixed-electro discharge machining (PM-EDM) is a newly developed and innovative manufacturing process which was first implemented in 1980. Researchers have recently focused on enhancing the machining efficiency and the characteristics of modified biomaterial surface through a novel process called PM-EDM, for commercial implementation [20][21][22][23]. During this process, suitable electrically conductive or moderate-conductive particles are suspended in a dielectric liquid to improve the machining performance and enhance the machined surface characteristics, which makes this process different from the conventional EDM process [22,[24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Coatings, Corrosion and Wear Characteristics of Machined Biomaterials through Hydroxyapatite Mixed-EDM Process: A Review

et al. 2021

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Together, 316L steel, magnesium-alloy, Ni-Ti, titanium-alloy, and cobalt-alloy are commonly employed biomaterials for biomedical applications due to their excellent mechanical characteristics and resistance to corrosion, even though at times they can be incompatible with the body. This is attributed to their poor biofunction, whereby they tend to release contaminants from their attenuated surfaces. Coating of the surface is therefore required to mitigate the release of contaminants. The coating of biomaterials can be achieved through either physical or chemical deposition techniques. However, a newly developed manufacturing process, known as powder mixed-electro discharge machining (PM-EDM), is enabling these biomaterials to be concurrently machined and coated. Thermoelectrical processes allow the migration and removal of the materials from the machined surface caused by melting and chemical reactions during the machining. Hydroxyapatite powder (HAp), yielding Ca, P, and O, is widely used to form biocompatible coatings. The HAp added-EDM process has been reported to significantly improve the coating properties, corrosion, and wear resistance, and biofunctions of biomaterials. This article extensively explores the current development of bio-coatings and the wear and corrosion characteristics of biomaterials through the HAp mixed-EDM process, including the importance of these for biomaterial performance. This review presents a comparative analysis of machined surface properties using the existing deposition methods and the EDM technique employing HAp. The dominance of the process factors over the performance is discussed thoroughly. This study also discusses challenges and areas for future research.

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Section: Pm-edm Process Variables Affecting the Treated Surface Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of Coatings, Corrosion and Wear Characteristics of Machined Biomaterials through Hydroxyapatite Mixed-EDM Process: A Review

et al. 2021

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“…Experimental results stated that the addition of nano aluminum powder reduces micro-cracks and crates thereby improving surface finish. Uniform distribution of Al particles and generated carbides enriched surface layer due to alloying of transfer elements improves osseointegration for the surface [108].…”

Section: Pmedm Process Variablesmentioning

confidence: 99%

A systematic review on powder mixed electrical discharge machining

Joshi

Joshi²

2019

Heliyon

125

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The advancement in the field of material science has gifted us new electrically conductive materials having good mechanical properties and thermal characteristics. Machining these materials using conventional machining process is a challenging task. Electrical discharge machining (EDM) is a well-established machining process used to manufacture process hard materials having geometrically complex shapes, that are extremely difficult to machine traditionally. EDM is a thermo-electric process in which material is eroded by rapidly recurring sparks between the non-contacted electrode and workpiece. As there is no direct contact between the electrodes in EDM, machining defects like mechanical stresses, clattering & vibration do not create problems during machining. In spite of the advantages of the process, its use in industry is limited owing to poor surface finish and low volumetric material removal. To overcome these drawbacks, the metallic powder is mixed in the dielectric fluid, which increases its conductive strength and increases the spark gap distance between the tool and workpiece. This new evolved material removal process is called Powder Mixed Electrical Discharge Machining (PMEDM). The added powder significantly affects the performance of the EDM process. The objective of this review is to benefit the researchers to understand the PMEDM concept precisely and study the process parameters furthermore in particulars to get enhancements in the process to achieve better quality levels.

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“…Abdul-Rani et al (2017) meneliti arus, tegangan, pulse on time, dan penambahan konsentrasi nano alumunium. Ti-6Al-4V membandingkan kekasaran permukaan dan SEM [7]. Dari beberapa penelitian dapat disimpulkan bahwa arus discharge adalah parameter yang paling berpengaruh pada hasil proses EDM.…”

Section: Pendahuluanunclassified

Pengaruh Parameter Arus Discharge dan Elektroda Terhadap Nilai MRR Pada Proses Sinker EDM Material AISI

2020

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Electrical Discharge Machining (EDM) adalah proses permesinan non-konvensional yang menggunakan energi thermal berupa loncatan bunga api listrik bertemperatur tinggi 10.000˚C-12.000˚C di antara pahat dan benda kerja sebagai media pemotongannya. Proses EDM digunakan untuk pemotongan material yang sangat kuat dan keras. Proses EDM menghasilkan kepresisian tinggi untuk bentuk produk yang rumit dan kualitas permukaan yang baik. Proses EDM dipengaruhi oleh material yang diproses, material elektroda, arus discharge, tegangan, pulse on time (PON), pulse off time (POFF), spark gap, cairan dielektrik dan sebagainya. Kombinasi parameter tersebut akan menghasilkan karakteristik hasil pemotongan yang berbeda-beda. Penelitian ini bertujuan untuk mencari kombinasi parameter optimum proses EDM punches dari bahan AISI 316. Variable bebas penelitian adalah arus discharge (12A, 21A, 30A) dan elektroda (Tembaga dan Graphite). Variabel tetap yang digunakan PON 120 µs, POFF 3 µs, tegangan 45 V, cairan dielektrik CPC kerosene, material AISI 316, jenis mesin EDM sinker SKM EDM Politeknik Negeri Jakarta. Variable kontrol yaitu nilai MRR. Berdasarkan penelitian, nilai MRR tertinggi 0.775 gram/min dan terendah 0.175 gram/min. Parameter arus discharge dan elektroda merupakan variable yang paling berpengaruh terhadap nilai MRR.

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Machined Surface Quality in Nano Aluminum Mixed Electrical Discharge Machining

Cited by 34 publications

References 8 publications

Investigation of Coatings, Corrosion and Wear Characteristics of Machined Biomaterials through Hydroxyapatite Mixed-EDM Process: A Review

Investigation of Coatings, Corrosion and Wear Characteristics of Machined Biomaterials through Hydroxyapatite Mixed-EDM Process: A Review

A systematic review on powder mixed electrical discharge machining

Pengaruh Parameter Arus Discharge dan Elektroda Terhadap Nilai MRR Pada Proses Sinker EDM Material AISI

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