Microdrilling of AA (6351)-SiC-B4C composite using hybrid micro-ECDM process
Authors:
- M. Uthayakumar,
- S. Thirumalai Kumaran,
- M. Adam Khan,
- Sebastian Skoczypiec,
- Wojciech Bizoń
Abstract
In the present work, the microdrilling of a metal matrix composite (MMC) is performed by a combination of microelectrical discharge and electrochemical machining (the hybrid micro-ECDM process). The difficulties on machining the cohesive regions on the composite are studied through the control of machining parameters. The kerf/side gap of the holes, energetic regimes on the machined surface, and the surface texture are analyzed through optical microscope, scanning electron microscope, and energy dispersive spectroscopic images. From the observed results, it is found that the machining time increases with an increase in the discharge current and decrease in voltage. The fluctuations in material removal and the eccentricity towards the microdrill are also due to the change in current amplitude. Further, the formation of recast layer and the micropores on the machined surface are analyzed, and it is found that they are not completely eliminated but can be reduced with a change in process parameters.
- Record ID
- CUT1e805e55f5154ac2a2486de01f4d7e48
- Publication categories
- ;
- Author
- Journal series
- Journal of Testing and Evaluation, ISSN 0090-3973, e-ISSN 1945-7553
- Issue year
- 2018
- Vol
- 48
- No
- 4
- Pages
- [1-14]
- Other elements of collation
- il. (w tym kolor.); Bibliografia (liczba pozycji) - 16; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 48, Iss. 4
- Keywords in English
- optical microscope, microdrilling, energetic regimes
- DOI
- DOI:10.1520/JTE20180216 Opening in a new tab
- URL
- https://www.astm.org/DIGITAL_LIBRARY/JOURNALS/TESTEVAL/PAGES/JTE20180216.htm Opening in a new tab
- Language
- eng (en) English
- Score (nominal)
- 20
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT1e805e55f5154ac2a2486de01f4d7e48/
- URN
urn:pkr-prod:CUT1e805e55f5154ac2a2486de01f4d7e48
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.