Surface quality improvement at selective laser melting AlSi10Mg by optimizing single point diamond turning parameters
Author:
Wang Yifan1, Yu Jun1, Wang Zhanshan1
Affiliation:
1. Institute of Precision Optical Engineering , Tongji University , Shanghai , China
Abstract
Abstract
Selective laser melting allows aluminum-silicon alloy mirrors further lightweight for aerospace applications. The reflective surfaces based on Selective laser melting aluminum-silicon alloy substrates are commonly machined by single point diamond turning. However, many surface defects on single point diamond turning machined surfaces may limit their direct applications in optical system. In the paper, single point diamond turning parameters (cutting depth, feed rate, and cutting speed) are optimized orderly to improve its surface quality. The single point diamond turning machined surface morphologies are measured by using white light profilometer. In our selective laser melting AlSi10Mg substrate, scratches and holes mainly damaged single point diamond turning surface. Scratches are caused by inclusions while holes are generated by gas pores and inclusions. Single point diamond turning parameters optimization reduces the density of such surface defects, but these defects cannot be eliminated totally.
Funder
National Natural Science Foundation of China
Publisher
Walter de Gruyter GmbH
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference37 articles.
1. N. Heidler, E. Hilpert, J. Hartung, H. V. Lukowicz, and S. Risse, “Additive manufacturing of metal mirrors for TMA telescope,” in Optical Fabrication, Testing, and Metrology VI, Proc. of SPIE, Frankfurt, Germany, SPIE Digital Library, 2018, p. 106920C. 2. M. Roulet, C. Atkins, E. Hugot, S. Lemared, and M. Ferrari, “3d printing for astronomical mirrors,” in 3D Printed Optics and Additive Photonic Manufacturing, Proc. of SPIE, Strasbourg, France, SPIE Digital Library, 2020, p. 1067504. 3. E. Hilpert, J. Hartung, H. V. Lukowicz, T. Herffurth, and N. Heidler, “Design, additive manufacturing, processing, and characterization of metal mirror made of aluminum silicon alloy for space applications,” Opt. Eng., vol. 58, no. 09, pp. 1–9, 2019, https://doi.org/10.1117/1.oe.58.9.092613. 4. I. Uţu, I. Mitelea, I. Bordeașu, and F. Franţ, “Effect of heat treatment on corrosion and ultrasonic cavitation erosion resistance of AlSi10MnMg alloy,” Mater. Test., vol. 62, no. 9, pp. 921–926, 2020, https://doi.org/10.3139/120.111565. 5. S. Eberle, A. Reutlinger, B. Curzadd, M. Mueller, and C. Leyens, “Additive manufacturing of an AlSi40 mirror coated with electroless nickel for cryogenic space applications,” in 2018 International Conference on Space Optics, Proc. of SPIE, Chania, Greece, SPIE Digital Library, 2018, p. 1118015.
Cited by
6 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献
|
|