Surface error modeling, evaluation and optimization of large optics in inertial confinement fusion laser system

Wang, Hui; Zhang, Zheng; Liu, Tianye; Liu, Changchun; Xiong, Zeng; Tian, Mingzhen; Quan, Xusong; Yuan, Xiaodong

doi:10.1016/j.fusengdes.2018.08.005

Cited by 3 publications

(1 citation statement)

References 25 publications

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“…1 Requirements for the reliability of optical components are extremely stringent for process system of inertial constraint fusion. 2 A series of negative factors, such as high brittleness and strong anisotropy of crystals, can affect optical surface accuracy of KDP crystal. [3][4][5] Compared to magnetorheological finishing and abrasive cutting, single-point diamond turning (SPDT) is an efficient process that maintains surface consistency.…”

Section: Introductionmentioning

confidence: 99%

The influence of cutting parameters on micro-topography of frequency features extracted from the machined KH₂PO₄ surfaces

Pang

Kuang

2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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Using reasonable cutting parameters of machining process is an effective and convenient means of improving the topography of the machined surfaces. In this study, the methods to find optimised cutting parameters can be obtained by studying the relationship between the cutting parameters and the micro-topography of frequency features in the machined KH2PO4 surfaces. Using the power spectral density and continuous wavelet transform methods, the 2D micro-topographies of frequencies corresponding to different cutting parameters are extracted from the machined KH2PO4 surfaces. The results for the extracted micro-topography are used to analyse the influence of cutting parameters on the spatial frequency feature which consists of the wavelength and amplitude. The middle-frequency feature reflects the variations of depth of cut and spindle speed, and the amplitude of it is directly proportional to depth of cut and spindle speed. The low-frequency feature reflects the variations of the feed rate and decreases to a smaller value when the feed rate increases. The high-frequency feature is mainly affected by the material properties and the vibrations that occur during processing. Comparing the micro-topography of frequencies under different cutting parameters, the depth of cut (3 μm), the spindle speed (400 r/min) and the feed rate (8 μm/r) are the optimised cutting parameters for the machine tools used in this article. In the process of reconstructing the arbitrary frequency topography, the continuous wavelet transform method can compensate for the deficiencies of the power spectral density method for extracting frequencies.

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Section: Introductionmentioning

confidence: 99%

The influence of cutting parameters on micro-topography of frequency features extracted from the machined KH₂PO₄ surfaces

Pang

Kuang

2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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Influence analysis on main part stiffness in the mirror array system about the mirror rotation angle

Chen

Shen

Fan

2021

Fusion Engineering and Design

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Performance analysis and optimization of inertial confinement fusion cascaded frequency converters based on the integrated optomechanical method

Chen

Chu

et al. 2020

Opt. Eng.

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Surface error modeling, evaluation and optimization of large optics in inertial confinement fusion laser system

Cited by 3 publications

References 25 publications

The influence of cutting parameters on micro-topography of frequency features extracted from the machined KH₂PO₄ surfaces

The influence of cutting parameters on micro-topography of frequency features extracted from the machined KH₂PO₄ surfaces

Influence analysis on main part stiffness in the mirror array system about the mirror rotation angle

Performance analysis and optimization of inertial confinement fusion cascaded frequency converters based on the integrated optomechanical method

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Surface error modeling, evaluation and optimization of large optics in inertial confinement fusion laser system

Cited by 3 publications

References 25 publications

The influence of cutting parameters on micro-topography of frequency features extracted from the machined KH2PO4 surfaces

The influence of cutting parameters on micro-topography of frequency features extracted from the machined KH2PO4 surfaces

Influence analysis on main part stiffness in the mirror array system about the mirror rotation angle

Performance analysis and optimization of inertial confinement fusion cascaded frequency converters based on the integrated optomechanical method

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Product

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The influence of cutting parameters on micro-topography of frequency features extracted from the machined KH₂PO₄ surfaces

The influence of cutting parameters on micro-topography of frequency features extracted from the machined KH₂PO₄ surfaces