Browse > Article
http://dx.doi.org/10.5762/KAIS.2019.20.11.217

Study on Tensile Properties of Polyamide 12 produced by Laser-based Additive Manufacturing Process  

Kim, Moosun (Urban Transit Research Team, Korea Railroad Research Institute)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.20, no.11, 2019 , pp. 217-223 More about this Journal
Abstract
The application of 3D printing technology is expanding due to the production of the complex-shape parts and the one-step manufacturing process. Moreover, various technical solutions in 3D printing are emerging through continuous research and development. Representative technologies include SLS technology, in which a desired area is sintered and laminated by irradiating a powder-type material with a laser. In addition, high-performance engineering plastic parts are being manufactured in increasing numbers. In this study, tensile specimens were fabricated from polyamide 12, a widely available polymer, and the glass bead-reinforced polyamide 12. The specimen-build orientation was divided into 0°, 45°, and 90° on the fabrication platform, and the tensile test temperature was -25℃, 25℃, and 60℃. The test results showed that the tensile modulus of both materials decreases as the build orientation becomes closer to 90°. In addition, the tensile strength of glass bead-reinforced PA12 showed more dependence on the build orientation than PA12. In addition, the tensile modulus and tensile strength decreased with increasing test temperature.
Keywords
Build Orientation; Glass Bead; Polyamide 12; Selective Laser Sintering; Tensile Property;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 I. Gibson, D. Shi, "Material properties and fabrication parameters in selective laser sintering process", Rapid Prototyping Journal, vol. 3, no. 4, pp. 129-136, 1997. DOI: https://doi.org/10.1108/13552549710191836   DOI
2 U. Ajoku, N. Saleh, N. Hopkinson, R. Hague, P. Erasenthiran, "Investigating mechanical anisotropy and end-of-vector effect in laser-sintered nylon parts", Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, vol. 220, pp. 1077-1086, 2006. DOI: https://doi.org/10.1243/09544054jem537   DOI
3 B. Caulfield, P. E. Mchugh, S. Lohfeld, "Dependence of mechanical properties of polyamide components on build parameters in the SLS process", Journal of Materials Processing Technology, vol. 182, pp. 477-488, 2007. DOI: https://doi.org/10.1016/j.jmatprotec.2006.09.007   DOI
4 M. Kim, "Study on Flexural Properties of Polyamide 12 according to Temperature produced by Selective Laser Sintering", Journal of the Korea Academia-Industrial cooperation Society, vol. 19, no. 11, pp. 319-325, 2018. DOI: https://doi.org/10.5762/KAIS.2018.19.11.319   DOI
5 K. Prashanth, S. Scudino, T. Maity, J. Das, J. Eckert, "Is the energy density a reliable parameter for materials synthesis by selective laser melting?", Materials Research Letters, vol. 5, pp. 386-390, 2017. DOI: https://doi.org/10.1080/21663831.2017.1299808   DOI
6 ASTM D638, Standard Test Method for Tensile Properties of Plastics,, ASTM International, West Conshohocken, PA, 2014. DOI: https://doi.org/10.1520/D0638-14
7 F. Sillani, R. G. Kleijnen, M. Vetterli, M. Schmid, K. Wegener, "Selective laser sintering and multi jet fusion: Process-included modification of the raw materials and analyses of parts performance", Additive Manufacturing, vol. 27, pp. 32-41, 2019. DOI: https://doi.org/10.1016/j.addma.2019.02.004   DOI
8 P. K. Jain, P. M. Pandey, P. V. M. Rao, "Experimental investigations for improving part strength in selective laser sintering", Virtual and Physical Prototyping, vol. 3, pp. 177-188, 2008. DOI: https://doi.org/10.1080/17452750802065893   DOI