Dry electrical discharge dressing and truing of diamond grinding wheel V-tip for micro-grinding
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2017-01-01 |
| Authors | Yanjun Lu, L. J. Li, Jin Xie, Chilou Zhou, Rui Guo |
| Institutions | South China University of Technology |
| Citations | 3 |
Abstract
Section titled āAbstractāThe dry electrical discharge dressing and truing technology was proposed to realize the high efficient and precise truing of diamond grinding wheel in this paper.Firstly, the V-shape tip of diamond grinding wheel was formed using dry electro-contact discharge (ECD) truing along setting crossed V-shape interpolation path.Secondly, the influence of different pulse discharge parameters on V-tip angle and V-tip radius was investigated, respectively.Finally, the trued V-tip diamond wheel was employed to fabricate micro-groove and micro-pyramid array structures on the surfaces of two hard and brittle materials by micro-grinding machining.The results indicated that the optimal pulse discharge parameters were open-circuit voltage E of 5V, pulse frequency f of 4000Hz and duty cycle d c of 50%.The least V-tip angle error and radius of trued SD600 V-tip diamond grinding wheel was 1.1Āŗ and 33 Āµm, respectively.The micro-groove and micro-pyramid structures with regular shape and smooth surface can was effectively machined on the surfaces of difficult-to-cut materials.