Abstract
The use of selective laser sintering in the production of functional gradient materials offers advantages, as freeform construction and localized control of the composition and process parameters, compared to other rapid manufacturing processes. In this work, selective laser sintering was used for manufacturing three-dimensional parts in functionally graded polymer blends based on polyamide 12 and high-density polyethylene with gradient composition in two directions (Y and Z). Test specimens were prepared in PA12/HDPE ratios of 0/100, 20/80, 50/50, 80/20 and 100/0 (w/w). These specimens were assessed in terms of density, microstructure by scanning electron microscopy and polarized light microscopy and mechanical performance by DMA. The sintered binary blend systems with composition gradient showed microstructure and properties variation as function of the blend compositions. The results demonstrated the potential of selective laser sintering to manufacture advanced polymeric functional gradient material parts.
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References
Wen B, Wu G, Yu J (2004) A flat polymeric gradient material: preparation, structure and property. Polymer 45:3359–3365
Edwards KL (2002) Linking materials and design: an assessment of purpose and progress. Mater Des 23:255–264
Shishkovsky I (2001) Synthesis of functional gradient parts via RP methods. Rapid Prot J 7:207–211. doi:10.1108/13552540110402908
Bernard A, Taillandier G, Karunakaran KP (2009) Evolutions of rapid product development with rapid manufacturing: concepts and applications. Int J Rapid Manuf 1:3–18
Petrovic V, Gonzalez JVH, Ferrando OJ, Gordillo JD, Puchades JRB, Griñan LP (2010) Additive layered manufacturing: sectors of industrial application shown through case studies. Int J Prod Res. doi:10.1080/00207540903479786
Ning N-Y, Zhu Y-B, Zhang X-Q, He Z-K, Fu Q (2007) A new technique for preparing polyethylene/polystyrene blends with gradient structure. J Appl Polym Sci 105:2737–2743
Jin G, Takeuchi M, Honda S, Nishikawa T, Awaji H (2005) Properties of multilayered mullite/Mo functionally graded materials fabricated by powder metallurgy processing. Mater Chem Phys 89:238–243
Su WN (2002) Layered fabrication of tool steel and functionally graded materials with a Nd: YAG Pulsed Laser. PhD Thesis. Loughborough University, Loughborough, UK
Kieback B, Neubrand A, Riedel H (2003) Processing techniques for functionally graded materials. Mater Sci Eng 362:81–106
Hopkinson N, Dickens P (2003) Analysis of rapid manufacturing—using layer manufacturing processes for production. Proc IME C J Mech Eng Sci 217:31–39
Calder N Rapid manufacturing of functional materials, in TCT2001 Conference2001: Manchester
Kumar S, Kruth JP (2010) Composites by rapid prototyping technology. Mater Des 31:850–856
Chung H, Das S (2008) Functionally graded Nylon-11/silica nanocomposites produced by selective laser sintering. Mater Sci Eng 487:251–257
Caulfield B, McHugh PE, Lohfeld S (2007) Dependence of mechanical properties of polyamide components on build parameters in the SLS process. J Mater Process Tech 182:477–488
Yan C, Shi Y, Yang J, Liu J (2011) Investigation into the selective laser sintering of styrene–acrylonitrile copolymer and postprocessing. Int J Adv Manuf Technol 51:973–982
Chung H, Das S (2006) Processing and properties of glass bead particulate-filled functionally graded Nylon-11 composites produced by selective laser sintering. Mater Sci Eng 437:226–234
Chiu WK, Yu KM (2008) Multi-criteria decision-making determination of material gradient for functionally graded material objects fabrication. Proc IME B J Eng Manufact 222:293–307
Salmoria GV, Paggi RA, Lago A, Beal VE (2009) Functionally graded PA12/MWCNTs composite fabricated by SLS to aerospace applications: mechanical and electrical behavior. In: Bártolo PJ (ed) Innovative developments in design and manufacturing—advanced research in virtual and rapid prototyping. Taylor and Francis, London, pp 55–60
Jiang C, Filippi S, Magagnini P (2003) Reactive compatibilizer precursors for LDPE/PA6 blends. II: maleic anhydride grafted polyethylenes. Polymer 44:2411–2422
Palabiyik M, Bahadur S (2000) Mechanical and tribological properties of polyamide 6 and high density polyethylene polyblends with and without compatibilizer. Wear 246:149–158
Salmoria GV, Leite JL, Ahrens CH, Lago A, Pires ATN (2007) Rapid manufacturing of PA/HDPE blend specimens by selective laser sintering: microstructural characterization. Polym Test 26:361–368
Salmoria GV, Leite JL, Ahrens CH, Paggi RA, Lago A (2007) Manufacture by selective laser sintering of functionally graded PA 6/PA 12 components with applications in antifriction materials. In: Bártolo PJ (ed) Virtual and rapid manufacturing—advanced research in virtual and rapid prototyping. Taylor and Francis, London, pp 313–317
Fan Z, Tsakiropoulos P, Miodownik AP (1994) A generalized law of mixtures. J Mater Sci 29:141–150. doi:10.1007/bf00356585
Leite JL, Salmoria GV, Paggi RA, Ahrens CH, Pouzada AS (2010) A study on morphological properties of laser sintered functionally graded blends of amorphous thermoplastics. Int J Mat Prod Tech 39:205–222
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Lisi Leite, J., Salmoria, G.V., Paggi, R.A. et al. Microstructural characterization and mechanical properties of functionally graded PA12/HDPE parts by selective laser sintering. Int J Adv Manuf Technol 59, 583–591 (2012). https://doi.org/10.1007/s00170-011-3538-5
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DOI: https://doi.org/10.1007/s00170-011-3538-5