دورية أكاديمية
Study of material removal behavior on R-plane of sapphire during ultra-precision machining based on modified slip-fracture model
| العنوان: | Study of material removal behavior on R-plane of sapphire during ultra-precision machining based on modified slip-fracture model |
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| المؤلفون: | Suk Bum Kwon, Aditya Nagaraj, Hae-Sung Yoon, Sangkee Min |
| المصدر: | Nanotechnology and Precision Engineering, Vol 3, Iss 3, Pp 141-155 (2020) |
| بيانات النشر: | AIP Publishing LLC, 2020. |
| سنة النشر: | 2020 |
| المجموعة: | LCC:Technology LCC:Engineering (General). Civil engineering (General) |
| مصطلحات موضوعية: | Ductile-brittle transition, Crack morphology, Single crystal sapphire, Deformation mechanism, Orthogonal cutting, Ultra-precision machining, Technology, Engineering (General). Civil engineering (General), TA1-2040 |
| الوصف: | In this paper, the modified slip/fracture activation model has been used in order to understand the mechanism of ductile-brittle transition on the R-plane of sapphire during ultra-precision machining by reflecting direction of resultant force. Anisotropic characteristics of crack morphology and ductility of machining depending on cutting direction were explained in detail with modified fracture cleavage and plastic deformation parameters. Through the analysis, it was concluded that crack morphologies were mainly determined by the interaction of multiple fracture systems activated while, critical depth of cut was determined by the dominant plastic deformation parameter. In addition to this, by using proportionality relationship between magnitude of resultant force and depth of cut in the ductile region, an empirical model for critical depth of cut was developed. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2589-5540 |
| Relation: | http://www.sciencedirect.com/science/article/pii/S2589554020300234; https://doaj.org/toc/2589-5540 |
| DOI: | 10.1016/j.npe.2020.07.001 |
| URL الوصول: | https://doaj.org/article/31d436ec09e74d0eabb619dcb9f87ed1 |
| رقم الأكسشن: | edsdoj.31d436ec09e74d0eabb619dcb9f87ed1 |
| قاعدة البيانات: | Directory of Open Access Journals |
Find this article in full text from Scitation. 
Full Text Finder | تدمد: | 25895540 |
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| DOI: | 10.1016/j.npe.2020.07.001 |