112 放電表面処理の複合加工化

概要

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Recently it was reported that a TiC layer could be coated on a work-piece by EDM using a titanium electrode in slurry with carbon powder. This coated TiC layer, however, has relatively rough surface and attacks an opposite surface in sliding contacts. The rough surface results in the formation of wear particles and severe adhesion. In this report, a new method to reduce surface roughness of the EDC coated layer is proposed. The concept of the proposed method is to superimpose lapping effect upon the EDM (EDC) by suspending hard and non-conductive particles in working fluid and oscillating. From some experiments, it is found that the lower the target voltage of the servo-system, the smaller the surface roughness. This result indicates that the target voltage of the servo-system corresponds to lapping pressure.
社団法人日本機械学会の論文
2002-11-19