| Autor: |
Jialiang Wang, Zhang, Shaohe, Yang, Xian, Peng, Fenfei |
| Zdroj: |
Journal of Superhard Materials; Jul2021, Vol. 43 Issue 4, p285-295, 11p |
| Abstrakt: |
The hot-pressed sintered samples of which the hard-brittle abrasives and diamond are distributed in different positions were prepared using template method. The friction-wear test, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and other testing methods combined with the theory of tribology and principles of micromachining were used to analyze the impact of the relative position of hard-brittle abrasives and diamonds on the cutting performance and failure mode of the diamond. The results show that the hard-brittle abrasives in different positions significantly impact the wear resistance and the diamond protrusion performance, though in different ways and degrees. The influence is greater when the hard-brittle abrasives and the diamond are in contact with one another than when they are separated and contactless. The influence when the hard-brittle abrasives and the diamond are in contact on the cutting performance in the rear, side, and front of the diamond is in descending order. The influence can be divided into three categories: the micro-pit effect, the local wear effect, and the weakening effect of the holding force, which synergistically affect the cutting performance. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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