An Investigation of Attachment on Electrode Surface in Dry EDM

Abstract:

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Dry Electrical discharge machining (Dry EDM), using gas as dielectric, has been developed to solve problems against environment. It has both advantages of high material removal ratio (MRR) and low relative electrode wear ratio (REWR). We investigated the effect of duty factor, peak current, and reference ratio of gap voltage on MRR and REWR of Dry EDM, respectively. Moreover, trying to prove the attachment on electrode surface could decline REWR. It is considered that melting material of work-piece was sputtered and stuck onto electrode surface, and to become a protection layer as result in low REWR. However, the attachment will be removed under the condition of high peak current and high discharge frequency. But the amount of attachment just has little change when discharge number and arc discharge ratio are both decrease.

Info:

Periodical:

Advanced Materials Research (Volumes 126-128)

Edited by:

Yunn-Shiuan Liao, Chao-Chang A. Chen, Choung-Lii Chao and Pei-Lum Tso

Pages:

407-412

DOI:

10.4028/www.scientific.net/AMR.126-128.407

Citation:

K. Y. Shue et al., "An Investigation of Attachment on Electrode Surface in Dry EDM", Advanced Materials Research, Vols. 126-128, pp. 407-412, 2010

Online since:

August 2010

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Price:

$35.00

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