The Capabilities of Electrodischarge Microdrilling of High Aspect Ratio Holes in Ceramic Materials

Skoczypiec, Sebastian; Machno, Magdalena; Bizon, Wojciech

doi:10.1515/mper-2015-0027

Cited by 15 publications

(5 citation statements)

References 14 publications

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“…The research of EDM drilling with using of deionised water and tube electrode has been carried on at Institute of Production Engineering at Cracow University of Technology. A machined materials the reaction bonded silicon-infiltrated silicon carbide (SiSiC) [18] and X5CrNi18-10 stainless steel [19] are selected.…”

Section: Hybrid Process -Edm Drilling With Using Of Deionised Watermentioning

confidence: 99%

Selected Problems of Electrodischarge Drilling of High Aspect Ratio Holes

Machno¹

2017

The Publications of the MultiScience - XXXI. MicroCAD International Scientific Conference

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In the paper characteristic of drilling process of high-aspect-ratio holes is presented. The drilling of difficult-to-machine materials (such as hardened steel, carbides, alloys of high strength, composite materials, ceramics) is ineffective with application of conventional methods. The conventional methods are used to machine of materials with a relative machinability. The nonconventional methods are applied to the machine of holes in difficult-to-machine materials, especially in microscale. In the article is described electrodischarge drilling with using of deionised water which is called as hybrid process electrochemical discharge machining (ECDM). The hybrid process enables machining high aspect ratio holes by simultaneous interaction of anodic dissolution and electrical discharges. This paper also presents mathematical modelling of temperature increase during time of the impulse.

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Section: Hybrid Process -Edm Drilling With Using Of Deionised Watermentioning

confidence: 99%

Selected Problems of Electrodischarge Drilling of High Aspect Ratio Holes

Machno¹

2017

The Publications of the MultiScience - XXXI. MicroCAD International Scientific Conference

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“…MMCs are created by different manufacturing processes, such as friction stir welding process, metal injection molding, pressure casting technology, mechanical alloying, and continuous binder powder coating [7,8]. Conventional machines for MMCs offer relatively high engineering precision; therefore, due to the mechanical nature of the process, they generate excessive heat and that causes plastic deformation which in turn reduces the quality of the workpiece surface layer [9][10][11]. EDM is a contactless process, and the processing powers are humble, therefore it is used for thin, fragile, and aspect ratio machines [12].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Surface Roughness and Material Removal Rate in Electrical Discharge Machining of Al-Alloy With 10%sic

Fadhil

2022

IIUMEJ

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Aluminum-based metallic matrix compounds are widely used in industrial and aircraft manufacturing due to their advanced characteristics, such as toughness and high strength resistance to weight ratio, etc. Silicon carbide is an important industrial ceramic and it is the fourth hardest ceramic after diamond, boron nitride, and boron carbide. Owing to its low fracture toughness, it is difficult to machine silicon carbide using traditional machining processes. Electrical discharge machine can machine such materials irrespective of their hardness. Aluminum alloy 6061 and 10% SiC based-metal matrix composite were used as a workpiece that was produced by stir casting. In the experimental investigation, pulse current Pc (10, 20, and 30 A), pulse on (Pon) duration (100, 150, and 200 ?sec), and pulse off (Poff) duration (6, 12, and 24 ?sec) were treated as the input variables. The output responses were surface roughness (SR) and material removal rate (MRR). The best value for surface roughness (Ra) reached (1.032 µm) at Pc (10 A), Pon duration (100 ?sec) and Poff (15 ?sec). Also, the best result for the productivity of the process (MRR) reached (69.49 × 10-3 g/min) at Pc (30 A) Pon, (200 ?sec) and (6 ?sec) Poff. Therefore, the experimental outcomes were optimized for surface roughnes and material removal rate by adding 10% SiC to aluminum alloy 6061. ABSTRAK: Sebatian matrik logam berasaskan aluminium telah digunakan secara meluas dalam industri pembuatan dan pesawat kerana ciri-cirinya yang canggih, seperti ketahanan dan daya rintangan yang tinggi kepada nisbah berat, dan lain-lain. Silikon karbida adalah seramik industri yang penting dan ia merupakan seramik keempat terkuat setelah berlian, boron nitrida dan boron karbida. Disebabkan ketahanan frakturnya yang rendah, adalah sukar bagi menghasilkan mesin silikon karbida menggunakan proses pemesinan tradisional. Mesin pelepasan elektrik mampu menghasilkan mesin menggunakan bahan tersebut tanpa mengira kekerasan. Aloi aluminium 6061 dan komposit matrik logam berasaskan SiC 10% telah digunakan sebagai bahan kerja yang terhasil melalui tuangan kacauan. Melalui penyelidikan eksperimen, detik arus Pc (10, 20, dan 30 A), detik hadir (Pon) berdurasi (100, 150, dan 200 ?sec), dan detik henti (Poff) berdurasi (6, 12, dan 24 ?sec) dirawat sebagai pemboleh ubah input. Respon pengeluaran adalah kekasaran permukaan (SR) dan kadar penyingkiran bahan (MRR). Nilai terbaik bagi kekasaran permukaan (Ra) telah mencapai (1.032 µm) pada Pc (10 A), berdurasi Pon (100 ?sec) dan Poff (15 ?sec). Tambahan, hasil terbaik bagi proses produktiviti (MRR) mencapai (69.49 × 10-3 g/min) pada Pc (30 A) Pon, (200 ?sec) dan (6 ?sec) Poff. Oleh itu, hasil eksperimen dioptimumkan bagi permukaan kasar dan kadar penyingkiran bahan dengan tambahan 10% SiC ke aloi aluminium 6061.

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“…In the structure of blade the are many holes that must be effective produce. Currently, sustainable technological methods are sought to make high aspect-ratio holes in superalloys [4][5][6][7]. Due to the capabilities of electrical discharge machining which enables the processing of electrical conductive materials regardless of their hardness or chemical composition, much research is focused on manufacturing high aspect-ratio holes in superalloys with EDM.…”

Section: Introductionmentioning

confidence: 99%

Electrical discharge machining HOLEs on NICKEL-BASED ALLOYS

Oniszczuk-Świercz

Świercz

Chmielewski

et al. 2022

METAL 2022 Conference Proeedings

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Electrical discharge machining is one of the advanced processing technologies widely used to machine microhole. However, advances in materials engineering that lead to the production of new nickel-based superalloys require the development of new machining technologies. In addition, new sustainable EDM conditions to achieve the desired geometric quality of manufacturing holes are needed. In this study, a series of experiments of EDM drilling of holes were performed. The influence of capacitor capacity, discharge time, and discharge break time on the geometry accuracy of manufacturing holes was investigated and described.

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The Capabilities of Electrodischarge Microdrilling of High Aspect Ratio Holes in Ceramic Materials

Cited by 15 publications

References 14 publications

Selected Problems of Electrodischarge Drilling of High Aspect Ratio Holes

Selected Problems of Electrodischarge Drilling of High Aspect Ratio Holes

Evaluation of Surface Roughness and Material Removal Rate in Electrical Discharge Machining of Al-Alloy With 10%sic

Electrical discharge machining HOLEs on NICKEL-BASED ALLOYS

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