Determining the Key Design Parameters of Tool-Path Planning for Rock Joint Carving.
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| Title: | Determining the Key Design Parameters of Tool-Path Planning for Rock Joint Carving. |
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| Authors: | Fan, Binqiang1,2 (AUTHOR), Wang, Liangqing1 (AUTHOR) wlq027@126.com, Li, Yong1 (AUTHOR), Zheng, Luobin1 (AUTHOR), Zhu, Linfeng1 (AUTHOR) |
| Source: | Rock Mechanics & Rock Engineering. Jan2023, Vol. 56 Issue 1, p319-342. 24p. |
| Subjects: | Petroglyphs, Milling cutters, Differential geometry, Curvature |
| Abstract: | This paper introduces the framework of tool-path planning for rock joint carving, improves the selection criteria of the critical cutter-end radius and presents a new general calculation method for the projected path interval based on the differential geometric features of joint morphology. The positive relationships between the design point interval (DPI) and the two key design parameters are investigated, and the DPI should be adjusted to loosen the constraints of the key design parameters and improve the feasibility of carving in practice. The specimens carved with the key design parameters presented in this paper reached the standard, but their efficiency was more than doubled compared with the specimens utilizing the empirical parameters. Considering the fineness and carving efficiency of the joint morphology, a DPI from 0.4 to 1.0 mm for reconstructing the original joint morphology is recommended for tool-path planning. This provides a theoretical reference for subsequent researcher to manufacture joint carving. Highlights: The selection criterion of the cutter for joint carving is improved based on the curvature characteristics of the joint morphology. A general calculation model for the projected path interval is established according to the local morphological features of the joint, the radius of the cutter-end and the accuracy requirements. From the analysis of 24 joints with various roughnesses, the critical cutter-end radius and the critical projected path interval have positive correlation with the designed point interval of joints. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | This paper introduces the framework of tool-path planning for rock joint carving, improves the selection criteria of the critical cutter-end radius and presents a new general calculation method for the projected path interval based on the differential geometric features of joint morphology. The positive relationships between the design point interval (DPI) and the two key design parameters are investigated, and the DPI should be adjusted to loosen the constraints of the key design parameters and improve the feasibility of carving in practice. The specimens carved with the key design parameters presented in this paper reached the standard, but their efficiency was more than doubled compared with the specimens utilizing the empirical parameters. Considering the fineness and carving efficiency of the joint morphology, a DPI from 0.4 to 1.0 mm for reconstructing the original joint morphology is recommended for tool-path planning. This provides a theoretical reference for subsequent researcher to manufacture joint carving. Highlights: The selection criterion of the cutter for joint carving is improved based on the curvature characteristics of the joint morphology. A general calculation model for the projected path interval is established according to the local morphological features of the joint, the radius of the cutter-end and the accuracy requirements. From the analysis of 24 joints with various roughnesses, the critical cutter-end radius and the critical projected path interval have positive correlation with the designed point interval of joints. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 07232632 |
| DOI: | 10.1007/s00603-022-03072-7 |
