Electrodischarge Drilling of Microholes in c-BN
| Autor: | Krzysztof Miernik, Wojciech Bizon, Dominik Wyszyński |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0209 industrial biotechnology
Materials science lcsh:Mechanical engineering and machinery Liquid dielectric chemistry.chemical_element 02 engineering and technology Tungsten Article drilling law.invention chemistry.chemical_compound 020901 industrial engineering & automation Machining law lcsh:TJ1-1570 Electrical and Electronic Engineering business.industry Mechanical Engineering Transistor Drilling cubic boron nitride 021001 nanoscience & nanotechnology Microsecond chemistry Control and Systems Engineering Boron nitride electrodischarge micromachining Electrode Optoelectronics 0210 nano-technology business |
| Zdroj: | Micromachines Volume 11 Issue 2 Micromachines, Vol 11, Iss 2, p 179 (2020) |
| ISSN: | 2072-666X |
| DOI: | 10.3390/mi11020179 |
| Popis: | 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 &mu m. Each hole was drilled for 10 min. The holes did not exceed 410 &mu m in diameter and were at least 1000 &mu m 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. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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