Topography simulation and vibration analysis of ultra-precision diamond flycutting micro V-groove

Liu, Yong; Yin, Ziqiang; Li, Shengyi; Wu, Yulie; Dai, Yifan

doi:10.1504/ijnm.2011.043687

Cited by 2 publications

(1 citation statement)

References 5 publications

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“…This is because the ultra-precision cutting method can precisely generate 3D shape micro-structures, and not be influenced by substrate materials. Therefore, the linear micro-groove arrays developed by ultra-precision cutting have been investigated by many researchers (Lee et al, 2004;Kim and Loh, 2007;Zhao et al, 2009aZhao et al, , 2009bLiu et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Ultra-precision cutting of linear micro-groove array for distributed feedback laser devices

Guo

Zeng³

et al. 2018

IJNM

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The tunable range and beam linewidth of distributed feedback laser were determined by fabrication quality of the periodic linear micro-groove array on substrate, which grooves are high sloped and ranged sub-micron to few microns. Compared with the common micro-groove arrays (size from tens of microns to sub-millimetre), the ultra-precision cutting of these tiny and high-sloped linear micro-groove arrays are more difficult to realise. In this paper, a series of investigations was proposed for ultra-precision cutting of linear micro-groove array on polymethyl methacrylate (PMMA). Firstly, the different cutting processes included planing and fly-cutting were conducted. The workpiece morphology, surface quality and machining efficiency of these processes were investigated. Then, the fly cutting process was optimised by the calculation of non-free chip zone and the analysis of chip interference by cutting experiments. Finally, a novel tool positioning method based on acoustic emission was presented in order to realise high accuracy control of micro-groove arrays dimensions.

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Section: Introductionmentioning

confidence: 99%

Ultra-precision cutting of linear micro-groove array for distributed feedback laser devices

Guo

Zeng³

et al. 2018

IJNM

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Generation mechanism and anti-friction effect evaluation of continuous micro-groove texture machined by ball-end milling process

Huang,

et al. 2024

Surf. Topogr.: Metrol. Prop.

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The tool path in ball-end milling process is flexible and controllable considering the structure characteristics and moving way of the cutter. This paper aims to reveal the generation method of continuous surface micro-groove texture by using ball-end milling process and evaluate the corresponding anti-friction performance by combining simulation and friction experiments. Results indicate that continuous micro-grooved surface texture can be obtained by combining small feed per tooth and large radial cutting depth. Radial depth of cut and tool radius affect aspect ratio of micro-groove. The bearing capacity of the oil film shows an increasing and then decreasing trend with the increase of radial depth of cut and orientation angle. Radial depth of cut increased from 0.1 mm to 0.3 mm, resulting in a maximum 4.87% increase in the bearing capacity of oil film because of the enhanced wedge effect. However, further increase in radial depth of cut leads to increased vortex, weakening the wedge effect. The oil film bearing capacity is reduced so that the friction coefficient increases by a maximum of 510%. Moreover, as the orientation angle increases from 10° to 20°, the bearing capacity of the oil film increases by 22.7%. The minimum friction coefficient currently is 0.0215. However, when the micro-groove orientation angle is further increased, the countercurrent effect is enhanced and the dynamic pressure effect is weakened, which finally leads to a decrease in the bearing capacity of the oil film. The friction coefficient has increased by 30.2% maximum. This study is of great significance which provides a new method for guiding the friction reduction on the die surface.

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Topography simulation and vibration analysis of ultra-precision diamond flycutting micro V-groove

Cited by 2 publications

References 5 publications

Ultra-precision cutting of linear micro-groove array for distributed feedback laser devices

Ultra-precision cutting of linear micro-groove array for distributed feedback laser devices

Generation mechanism and anti-friction effect evaluation of continuous micro-groove texture machined by ball-end milling process

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