CAPTURING OF UNEVEN DEFORMATIONS OF LIGHTENED 3D PRINTED PARTS
DOI:
https://doi.org/10.46585/pc.2020.2.1640Klíčová slova:
3D printing of metal, Additive Manufacturing, DMLS, Maraging steel MS1, ARAMIS GOM 4M, tensile test, uneven deformation capturing methodologyAbstrakt
This paper deals with the problematics of tensile testing of maraging steel lightweight cylindrical samples with internal structures, intended for automotive application. The samples were made with DMLS technology and tensile tested under the static strain rate of 0.002 s-1. During the loading, uneven deformations and multiple necking occurred on the samples. The mentioned effect significantly affects the state of stress and deformation at the final fracture zone, as well as the total deformation into the fracture, which means that it actually distorts the standard tensile test record. Therefore, a methodology for capturing the deformation response using the ARAMIS optical system was proposed. The methodology is presented and verified by a set of experiments for BCC internal structure.
Stažení
Reference
ARAMIS, User manual – Software, GOM mbH, Braunschweig, 2007
Bourell, D., Kruth J.P., Leu M., Levy, G., Rosen, D., Beese, A. M. and CLARE, A. 2017. Materials for additive manufacturing. CIRP Annals - Manufacturing Technology, 66(2), pp. 359-681 (23). DOI: https://doi.org/10.1016/j.cirp.2017.05.0097
Firsov, D.G., Konev, S.D., Dubinin, O.N., Evlashin, S.A., and Shishkovsky, I.V., 2020. Localization of Deformation in Lattice Structures of 3D-Printed Samples of 03X17H14M2 Steel. Technical Physics Letters, 46(7), pp.683-686
Inovar Communications Ltd. - Metal AM. © 2018. Metal powders – the raw materials. [Online]. Available at: https://www.metal-am.com/introduction-to-metal-additive-manufacturing-and-3d-printing/metal-powders-the-raw-materials/ [Accessed: 02. 10. 2020].
Matsumoto, R., Kubota, M. and Miyazaki, N., 2016. Development of deformation measurement system consisting of high-speed camera and digital image correlation, and its application to the measurement of large inhomogeneous deformations around the crack tip. Experimental Techniques, 40(1), pp.91-100.
Milewski, John O. 2017. Additive Manufacturing of Metals: From Fundamental Technology to Rocket Nozzles, Medical Implants and Custom Jewelry. Cham, Schwitzerland: Springer International Publishing. ISBN 978-3-319-58205-4. [online]. Available at: https://books.google.cz/books?id=XlsqDwAAQBAJ&lpg=PP1&dq=metal%20additive%20manufacturing&pg=PA8#v=onepage&q&f=false [Accessed: 02. 10. 2020].
Murasawa, G., Takahashi, R., Morimoto, T. and Yoneyama, S., 2015. Inhomogeneous deformation twinning measurement using digital image correlation and acoustic emission. Experimental Mechanics, 55(1), pp.65-76.
Purš, H., Zetek, M., Schmidová, E.: 3D printing of computationally optimized metal parts using DMLS technology. Annual report on the solution of the project in the program TRIO ev. No. FV30149 in 2019
Schmidova E., Hojka P., Culek B. st., Klejch F. and Schmid M. 2019. Dynamic Strength and Anisotropy of DMLS Manufactured Maraging Steel. Communications - Scientific Letters of the University of Zilina, 21(3), pp. 35-39. Available at: http://komunikacie.uniza.sk/index.php/communications/article/view/1502 [Accessed: 02. 10. 2020].
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Copyright (c) 2020 Filip Klejch, Eva Schmidová, Jakub Vágner, Ivana Zetková
Tato práce je licencována pod Mezinárodní licencí Creative Commons Attribution 4.0 .
Přijat 2020-10-29
Publikován 2020-12-30
