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http://hdl.handle.net/10397/96440
Title: | Study of deterministic surface micro-texture generation in ultra-precision grinding considering wheel oscillation | Authors: | Chen, S Yang, S Liao, Z Cheung, Jiang, Z Zhang, F |
Issue Date: | 14-Feb-2022 | Source: | Optics express, 14 Feb. 2022, v. 30, no. 4, p. 5329-5346 | Abstract: | Ultra-precision grinding is crucial for manufacturing high-end optics and molds, while the unbalanced wheel vibration is inevitable and becomes even more critical in surface generation, which resulted in undesired waviness and micro-texture on the ground surface. In this paper, to understand and control the micro-texture generation, a theoretical model has been developed to predict the deterministic surface micro-texture generation resulted from unbalanced tool vibration in ultra-precision grinding, in which the overlap trajectories of grinding wheel with an arc cutting edge were analyzed and calculated. The simulation work was performed and a double phase mechanism involved in deterministic textural pattern and structure has been revealed. Both theoretical and experimental results proved that phase shift is an important factor to determine micro-texture evolution in the ultra-precision grinding process. On this basis, a novel tool path strategy has been proposed to fabricate deterministic micro-structure by coordinating oscillation motion of the grinding wheel and phase shift control, in which a rhombus-shaped micro-structure array can be generated. A small adjustment for the phase shift was conducted and it was found that the more complex micro-texture with different textural patterns and micro-structure can be machined. The results indicated that the phase control for the tool path planning is an effective method to fabricate flexible and tunable micro-texture surfaces in ultra-precision grinding. | Publisher: | Optical Society of America | Journal: | Optics express | EISSN: | 1094-4087 | DOI: | 10.1364/OE.452751 | Rights: | Journal © 2022 Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License (https://creativecommons.org/licenses/by/4.0/). Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. The following publication Chen, S., Yang, S., Liao, Z., Cheung, C. F., Jiang, Z., & Zhang, F. (2022). Study of deterministic surface micro-texture generation in ultra-precision grinding considering wheel oscillation. Optics Express, 30(4), 5329-5346 is available at https://doi.org/10.1364/OE.452751. |
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