Ultra-precision Cutting Characteristics of Convex Blazed Gratings with Electroless NiP

被引：0

作者：

Peng X. ^{[1
,2
,3
]}

Li H. ^{[1
,2
,3
]}

Wang Y. ^{[4
]}

Guan C. ^{[1
,2
,3
]}

Hu H. ^{[1
,2
,3
]}

Lai T. ^{[1
,2
,3
]}

Xu C. ^{[1
,2
,3
]}

机构：

[1] College of Intelligence Science, National University of Defense Technology, Changsha

[2] Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha

[3] Hunan Key Laboratory of Ultra-precision Machining Technology, National University of Defense Technology, Changsha

[4] Shanghai Institute of Technical Physics, Chinese Academy of Sciences, Shanghai

来源：

Jixie Gongcheng Xuebao/Journal of Mechanical Engineering | 2023年 / 59卷 / 21期

关键词：

amorphous NiP; convex spherical blazed gratings; cutting characteristics; surface quality; ultra-precision machining;

D O I：

10.3901/JME.2023.21.121

中图分类号：

学科分类号：

摘要：

The performance of Offner-type spectrum imaging systems is directly impacted by the cutting surface quality of convex spherical blazed gratings. Microcrystalline aluminum 6061 surfaces chemically coated with NiP are used as the convex spherical blazed grating material. Firstly, the cutting performance of the electroless NiP is studied by means of material property characterization. Secondly, the minimum undeformed chip thickness of the electroless NiP is determined by simulating the two-dimensional wedge-shaped workpiece cutting process and the three-dimensional convex blazed grating cutting process, and the influence of the tool tilt angle on the chip flow and stress distribution is studied. Finally, the cutting surface quality of convex spherical blazed grating is compared by changing the feed direction. The results show that the electroless NiP exhibits obvious amorphous characteristics, the element distribution on the surface and inside of the coating is uniform, and the roughness value Ra of the turning plane can reach 0.794 nm. The minimum undeformed chip thickness of the electroless NiP is about 30.52 nm, and the increase in the tool tilt angle is responsible for the greater susceptibility to burr formation on the steep side. The feed direction along the steep side direction can improve the top burr of the grating and improve the contour accuracy, but there is no improvement on the blaze surface roughness, and the final blaze surface roughness Ra is less than 3 nm. © 2023 Editorial Office of Chinese Journal of Mechanical Engineering. All rights reserved.

引用

页码：121 / 130

页数：9

共 23 条

[1]

TANG Heng, TANG Yong, WU Xiaoyu, Et al., New progress and development trend of manufacturing of functional surface structure [J], Journal of Mechanical Engineering, 58, 11, pp. 183-199, (2022)

[2]

HUTLEY M C., Diffraction gratings, (1982)

[3]

BORN M, WOLF E., Principles of optics [M], (2005)

[4]

LOEWEN E G, POPOV E., Diffraction gratings and applications, (2018)

[5]

WANG Dinglu, ZHANG Dawei, XU Banglian, Et al., Research progress in design and fabrication of convex grating[J], Laser & Optoelectronics Progress, 58, 11, pp. 26-37, (2021)

[6]

FANG F Z, ZHANG X D，, WECKENMANN A, Et al., Manufacturing and measurement of freeform optics[J], CIRPAnnals, 62, 2, pp. 823-846, (2013)

[7]

BRINKSMEIER E, SCHONEMANN L., Generation of discontinuous microstructures by diamond micro chiseling[J], CIRP Annals, 63, 1, pp. 49-52, (2014)

[8]

XU D, OWEN J D, PAPA J C, Et al., Design，fabrication，and testing of convex reflective diffraction gratings[J], Optics Express, 25, 13, (2017)

[9]

TAN N Y J，, ZHOU G，, LIU K, Et al., Diamond shaping of blazed gratings on freeform surfaces[J], Precision Engineering, 72, pp. 899-911, (2021)

[10]

ZHANG Zhizhong, YANG Zhong, XIU Liancun, Development and application of shortwave infrared convex blazed grating with high diffraction efficiency[J], Acta Optica Sinica, 40, 12, pp. 59-67, (2020)

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