Λεπτομέρειες βιβλιογραφικής εγγραφής
| Τίτλος: |
Nanosecond laser ablation mechanism and Precision microstructuring of CBN wheel. |
| Συγγραφείς: |
Li, Zhipeng1 (AUTHOR), Yu, Hong2 (AUTHOR) yuhong@ipp.ac.cn, Zhu, Yandan3 (AUTHOR) zhuyd@njit.edu.cn, Zhang, Quanli1 (AUTHOR) zhangql@nuaa.edu.cn |
| Πηγή: |
Materials & Manufacturing Processes. 2026, Vol. 41 Issue 11, p1543-1555. 13p. |
| Θεματικοί όροι: |
Laser ablation, Grinding wheels, Image reconstruction, Surface topography, Microfabrication, Micromachining |
| Περίληψη: |
Structured wheels exhibit significant potential for surface microstructuring while reducing grinding forces and temperature. Due to theheterogeneity and high hardness of the CBN wheel, achieving efficient and precise microstructures remains a significant challenge. In this paper, a temperature-dependent material removal model combined with experiments was executed to explore the nanosecond laser ablation mechanism of CBN wheel microstructuring, where the heat diffusion, the temperature-dependent material removal, the spatial distribution, and the composition of the CBN wheel are taken into consideration. The CBN wheel, comprising grits, ceramic binder, and inherent voids, was reconstructed by 3D convolution based on the measured 3D topography, and the spatial variation characteristics of material properties were explicitly explained. A series of laser ablation experiments was then undertaken. The surface topographies of the CBN wheel predicted by the theoretical model are consistent with the experiments. The structured strategy was formulated by keeping the consistency of energy density and radiation temperature to fabricate different microstructures. The shapes of lines, rectangles, trapezoids, hexagons, circles, and ellipses were of high accuracy and good consistency, where clear geometric textures of sharp edges were achieved. [ABSTRACT FROM AUTHOR] |
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| Βάση Δεδομένων: |
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