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- Title
Laser-Induced Deterioration Grinding of Zirconium Oxide (ZrO<sub>2</sub>) - Generation of Layer Patterns and Performance Evaluation.
- Authors
Xiaohong Zhang; Zhaohui Deng; Yinhui Ren; Genyu Chen; Wei Liu; Gaofeng Zhang
- Abstract
Laser-induced deterioration was proposed for the wet grinding of zirconium oxide (ZrO2) ceramic used in the dental, semiconductor and automotive industries. The mechanisms for laser induced deterioration and wet grinding of the deterioration layer were theoretically analysed, and the four key processing parameters that determine the micro-topography and distribution of the laser-induced crater were proposed, including the laser power density lp the defocus distance z, the laser spot overlap ratio Us and the laser scanning track line overlap ratio Ui. Further, the forming mechanism of the single pulse-induced crater under different laser power densities, the defocus distance, and the interaction mechanisms between adjacent spots along the longitudinal and transverse directions were investigated. The optimal values of the key processing parameters were identified. Tofurther evaluate the effect of laser-induced deterioration objectively, a comparative experiment was conducted under laser-induced deterioration wet grinding (LIDWG) and conventional grinding (CG) conditions. It was found that the procedure of laser-induced deterioration had a strong influence on the grinding results. The normal and tangential grinding forces for LIDWG condition were lower than for CG condition, with a maximum reduction of 59.2 % (62.9 %).
- Subjects
ZIRCONIUM oxide; LASER photochemistry; PERFORMANCE evaluation; WETTING; CHEMICAL reduction
- Publication
Journal of Mechanical Engineering / Strojniški Vestnik, 2015, Vol 61, Issue 12, p689
- ISSN
0039-2480
- Publication type
Article
- DOI
10.5545/sv-jme.2015.2794