Influence of path generation strategy on tensile properties of FDM prototypes

This paper presents the results of a study evaluating the influence of path generation strategy of Fused Deposition Modeling (FDM) prototypes on mechanical properties of material. Several scientific studies were researching the problematic of path generation and internal structure of FDM prototypes. Mostly the influence on mechanical properties was observed. The presented study focuses on assessment of mechanical property of part fabricated using fused deposition modeling (FDM) technology in uniaxial tensile test. In this study standardized uniaxial tensile test (STN ISO 527-2) was used to determine tensile properties of specimens from ULTEM 9085. As the relation between mechanical property and process parameters is difficult to establish, attempt has been made to derive the empirical model between the processing parameters and mechanical properties using statistical methods. One of the parameter in path generation was the positive air-gap between fibres in internal raster. In actual practice, the parts are subjected to various types of loadings. Result show that proper model orientation when the orientation of load is known, can help to reduce the build time and material consumption.

Full text (pdf)

1. Budzik G.: Geometric accuracy of aircraft engine blade models constructed by means of the generative rapid prototyping methods FDM and SLA, Adv. Manuf. Sci. Technol., 34 (2010), 33-43.
2. Gajdoš I., Slota J., Spišák E.: Non-destructive analysis of building structure in FDM prototypes, Progressive technologies and materials, 3-A Technologies, Oficyna Wydawnicza Politechniki Rzeszowskiej, Rzeszów 2009, pp. 19-27. 
3. Sood A.K., Ohdar R.K., Mahapatra S.S.: Parametric appraisal of mechanical property of fused deposition modeling processed parts, Materials Design, 31 (2010), 287-295.
4. Ahn S.H, Montero M., Odell D., Roundy S., Wright P.K.: Anisotropic material properties of fused deposition modelling ABS, Rapid Prototyp. J., 8 (2002), 248-57.
5. Khan Z.A., Lee B.H., Abdullah J.: Optimization of rapid prototyping parameters for production of flexible ABS object, J. Mat. Proc. Technol., 169 (2005), 54-61.
6. Bahari M.S., Sanuddin A.B., Marlina I.K.: Investigation of optimal parameters for tensile strength property of ABS in rapid prototyping, Int. Rev. Mech. Eng., 7 (2013), 727-733. 
7. Croccolo D., De Agostinis M., Olmi G.: Experimental characterization and analytical modelling of the mechanical behaviour of fused deposition processed parts made of ABS-M30, Comput. Mat. Sci., 79 (2013), 506-518.
8. Lee C.S., Kim S.G., Kim H.J., Ahn S.H.: Measurement of anisotropic compressive strength of rapid prototyping parts, J. Mat. Proc. Technol., 187-188 (2007), 630-637.
9. Ming W.T., Xi J.T., Ye J.: A model research for prototype warp deformation in the FDM process, Int. J. Adv. Manuf. Technol., 33 (2007), 1087-1096.
10. Bellehumeur C.T., Gu P., Sun Q., Rizvi G.M.: Effect of processing conditions on the bonding quality of FDM polymer filaments, Rapid Prototyp J., 14 (2008), 72-80.
11. Chou K., Zhang Y.: A parametric study of part distortion in fused deposition modeling using three dimensional element analysis, J. Eng. Manuf., 222 (2008), 959-67.