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Electrodischarge Drilling of Microholes in c-BN
Cubic boron nitride (c-BN) is a “difficult-to-cut” material. High precision machining of this material is problematic because it is difficult to control the material removal rate and maintain acceptable accuracy. This paper describes an application of electrodischarge machining (EDM) for drilling mi...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7074580/ https://www.ncbi.nlm.nih.gov/pubmed/32050510 http://dx.doi.org/10.3390/mi11020179 |
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author | Wyszynski, Dominik Bizon, Wojciech Miernik, Krzysztof |
author_facet | Wyszynski, Dominik Bizon, Wojciech Miernik, Krzysztof |
author_sort | Wyszynski, Dominik |
collection | PubMed |
description | Cubic boron nitride (c-BN) is a “difficult-to-cut” material. High precision machining of this material is problematic because it is difficult to control the material removal rate and maintain acceptable accuracy. This paper describes an application of electrodischarge machining (EDM) for drilling micro holes in c-BN. The goal of this research was to determine a set of parameters and technical specifications for such a process. We used an isoenergetic transistor power supply with a microsecond voltage pulse generator and a tungsten tool electrode of diameter d = 381 μm. Each hole was drilled for 10 min. The holes did not exceed 410 μm in diameter and were at least 1000 μm deep. The process was carried out in a hydrocarbon dielectric liquid. We assess the quality of the holes from a qualitative and quantitative point of view. The results show that electrodischarge is a precise, accurate, and efficient method for machining c-BN. |
format | Online Article Text |
id | pubmed-7074580 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2020 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-70745802020-03-20 Electrodischarge Drilling of Microholes in c-BN Wyszynski, Dominik Bizon, Wojciech Miernik, Krzysztof Micromachines (Basel) Article Cubic boron nitride (c-BN) is a “difficult-to-cut” material. High precision machining of this material is problematic because it is difficult to control the material removal rate and maintain acceptable accuracy. This paper describes an application of electrodischarge machining (EDM) for drilling micro holes in c-BN. The goal of this research was to determine a set of parameters and technical specifications for such a process. We used an isoenergetic transistor power supply with a microsecond voltage pulse generator and a tungsten tool electrode of diameter d = 381 μm. Each hole was drilled for 10 min. The holes did not exceed 410 μm in diameter and were at least 1000 μm deep. The process was carried out in a hydrocarbon dielectric liquid. We assess the quality of the holes from a qualitative and quantitative point of view. The results show that electrodischarge is a precise, accurate, and efficient method for machining c-BN. MDPI 2020-02-10 /pmc/articles/PMC7074580/ /pubmed/32050510 http://dx.doi.org/10.3390/mi11020179 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Wyszynski, Dominik Bizon, Wojciech Miernik, Krzysztof Electrodischarge Drilling of Microholes in c-BN |
title | Electrodischarge Drilling of Microholes in c-BN |
title_full | Electrodischarge Drilling of Microholes in c-BN |
title_fullStr | Electrodischarge Drilling of Microholes in c-BN |
title_full_unstemmed | Electrodischarge Drilling of Microholes in c-BN |
title_short | Electrodischarge Drilling of Microholes in c-BN |
title_sort | electrodischarge drilling of microholes in c-bn |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7074580/ https://www.ncbi.nlm.nih.gov/pubmed/32050510 http://dx.doi.org/10.3390/mi11020179 |
work_keys_str_mv | AT wyszynskidominik electrodischargedrillingofmicroholesincbn AT bizonwojciech electrodischargedrillingofmicroholesincbn AT miernikkrzysztof electrodischargedrillingofmicroholesincbn |