Journal
CIRP ANNALS-MANUFACTURING TECHNOLOGY
Volume 61, Issue 1, Pages 187-190Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cirp.2012.03.006
Keywords
EDM; Micromachining; Power density
Funding
- Nottingham University
- School of Manufacturing Engineering, Universiti Malaysia Perlis
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Micro and macro EDM are similar, but differences in machining conditions result in a differing power density, P-e. This causes differences in the ratio of energy consumed for material removal with regard to energy distributed into the workpiece, and the ratio of total removal volume per pulse with respect to the molten area volume, so-called energy efficiency, E-e, and removal efficiency, R-e, respectively. It was found that, the P-e of micro EDM is approximately 30 times greater than that of macro EDM. Consequently, E-e and R-e in micro EDM were significantly greater than those of macro EDM. (C) 2012 CIRP.
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