Effect of electrical discharge machining on the characteristics of carbon fiber reinforced carbon composites

Citation
Yh. Guu et al., Effect of electrical discharge machining on the characteristics of carbon fiber reinforced carbon composites, J MATER SCI, 36(8), 2001, pp. 2037-2043
Citations number
20
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF MATERIALS SCIENCE
ISSN journal
00222461 → ACNP
Volume
36
Issue
8
Year of publication
2001
Pages
2037 - 2043
Database
ISI
SICI code
0022-2461(200104)36:8<2037:EOEDMO>2.0.ZU;2-H
Abstract
This work investigated electrical discharge machining (EDM) of carbon fiber reinforced carbon composite material. The characteristics of composites ma chined by EDM were studied in terms of machining parameters. An empirical m odel of the composites was also proposed based on the experimental data. Th e composite material was produced by an electrical discharge sinker using a graphite electrode. The workpiece surface and resolidified layers were exa mined by scanning electron microscopy (SEM). Moreover, surface roughness wa s determined with a surface profilometer. Experimental results indicate tha t the extent of delamination, thickness of the recast layer, and surface ro ughness are proportional to the power input. The EDM process effectively pr oduces excellent surface characteristics and high quality holes in composit es under low discharge energy conditions. (C) 2001 Kluwer Academic Publishe rs.