Surface Modification by Electrical Discharge Machining of Sintered NdFeB Magnet
In this study, the electrical discharge machining (EDM) of sintered NdFeB magnet was investigated. The surface characteristics were studied in terms of machining parameters. Correlation between the surface roughness, hardness, recast layer and the machining parameter were analyzed. Results show that an excellent machined finish can be obtained by setting the machine parameters at low pulse energy. Low pulse energy reduces the frequency of bursts of dielectric fluid and melt expulsions.
Liangchi Zhang, Chunliang Zhang and Tielin Shi
L. Li et al., "Surface Modification by Electrical Discharge Machining of Sintered NdFeB Magnet", Advanced Materials Research, Vols. 139-141, pp. 390-393, 2010