TY - GEN
T1 - Research on Scattering Characteristics of Ultra-precision Turned Aluminum Alloy Mirror Surface
AU - Shi, Xiaoquan
AU - Sun, Yazhou
AU - Li, Peixun
AU - Liu, Haitao
AU - Lin, Jie
N1 - Publisher Copyright:
© 2022, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.
PY - 2022
Y1 - 2022
N2 - Aluminum alloy mirrors are more and more widely used in aerospace, military and other important fields because of its high performance, like easy forming, light weight and short manufacturing cycle. The aluminum alloy mirror which can fulfil requirements of infrared optical system can be processed by ultra-precision turning, but light scattering on the surface of the mirror reduces its performance seriously. In order to quantitatively describe scattering characteristics of the processed surface, the 3D shape of turning surface with vibration is considered, and the electromagnetic simulation is calculated by COMSOL software. The bidirectional reflection distribution function (BRDF) is selected to evaluate the scattering characteristic. The effect of the factors, like feed rate, vibration amplitude, edge radius and incident light source wavelength on the surface scattering characteristics is received. Al6061 material is processed by ultra-precision turning, and its surface roughness Rz is less than 20 nm. The BRDF and dynamic laser interferometer are used to measure the surface characteristics and the 3D shape of turning shape, and the experiment results match the simulation results well. The scattering phenomenon of machined surface can be effectively suppressed by selecting smaller turning feed and tool tip arc radius, and strictly controlling the amplitude of machining vibration.
AB - Aluminum alloy mirrors are more and more widely used in aerospace, military and other important fields because of its high performance, like easy forming, light weight and short manufacturing cycle. The aluminum alloy mirror which can fulfil requirements of infrared optical system can be processed by ultra-precision turning, but light scattering on the surface of the mirror reduces its performance seriously. In order to quantitatively describe scattering characteristics of the processed surface, the 3D shape of turning surface with vibration is considered, and the electromagnetic simulation is calculated by COMSOL software. The bidirectional reflection distribution function (BRDF) is selected to evaluate the scattering characteristic. The effect of the factors, like feed rate, vibration amplitude, edge radius and incident light source wavelength on the surface scattering characteristics is received. Al6061 material is processed by ultra-precision turning, and its surface roughness Rz is less than 20 nm. The BRDF and dynamic laser interferometer are used to measure the surface characteristics and the 3D shape of turning shape, and the experiment results match the simulation results well. The scattering phenomenon of machined surface can be effectively suppressed by selecting smaller turning feed and tool tip arc radius, and strictly controlling the amplitude of machining vibration.
KW - Aluminum mirrors
KW - Bidirectional reflection distribution function
KW - Scattering characteristics
KW - Ultra-precision turning
UR - https://www.scopus.com/pages/publications/85128915728
U2 - 10.1007/978-981-19-1918-3_5
DO - 10.1007/978-981-19-1918-3_5
M3 - 会议稿件
AN - SCOPUS:85128915728
SN - 9789811919176
T3 - Smart Innovation, Systems and Technologies
SP - 33
EP - 46
BT - Proceedings of the 7th International Conference on Nanomanufacturing, nanoMan2021
A2 - Yang, Shuming
A2 - Luo, Xichun
A2 - Yan, Yongda
A2 - Jiang, Zhuangde
PB - Springer Science and Business Media Deutschland GmbH
T2 - 7th International Conference on Nanomanufacturing, nanoMan2021
Y2 - 17 November 2021 through 19 November 2021
ER -