Microfabrication of green ceramics: Contact vs. non-contact machining

摘要

Micromilling of ceramics is challenging due to its high hardness and low fracture toughness. Manufacturing of small components by non-contact micromachining of green ceramics could be a viable approach to overcome limitation associated with sintered state machining. In the present study, micromachining of green ceramics was carried out by contact (milling) and non-contact (laser ablation) methods and processibility was compared as well. Machining parameters such as machinability of micro-scale features, relative machining time and reproducibility were studied. Depth of machining, surface roughness, surface morphology, and changes in edge of machined features were analyzed. (C) 2015 Published by Elsevier Ltd.