Investigation on the Surface Quality in Electrical Discharge Machining

Liang Jun Wei; Song Peng; Lin Lin Wang

doi:10.4028/www.scientific.net/AMM.543-547.3754

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 543-547Investigation on the Surface Quality in Electrical...

Investigation on the Surface Quality in Electrical Discharge Machining

Abstract:

By analyzing the geometry of craters in a single pulse, the model of surface roughness in EDM was established and the main factors impacting on surface roughness were analyzed. On the base of establishment of the roughness model, the effect of discharge parameters on surface roughness was investigated by the process test method during the process of aluminum alloy 2A12 in EDM. At the same time, surface morphology obtained by different discharge parameters was comparatively analyzed. The results show that the effect of peak current and pulse width on the surface roughness is more significant, the crater on the machined surface has larger size while using higher peak current and pulse width, but the number of discharge craters is reduced.

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Periodical:

Applied Mechanics and Materials (Volumes 543-547)

Pages:

3754-3758

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.543-547.3754

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Online since:

March 2014

Authors:

Liang Jun Wei*, Song Peng, Lin Lin Wang

Keywords:

Discharge Craters, EDM, Roughness, Surface Morphology

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* - Corresponding Author

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