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Size effects on geometrical accuracy for additive manufacturing of Ti-6Al-4V ELI parts

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Abstract

A comprehensive investigation of the size and geometry dependency of the dimensional accuracy of direct metal laser sintering (DMLS) for Ti-6Al-4V ELI is presented. For features such as walls, squares, tubes, and rods with different sizes, the percent error significantly increases with decreasing the feature size. The polynomial function a t-b is suggested to describe this size dependency of the dimensional error where a and b are parameters depending on the geometry, material, and DMLS process parameters. This function is used to successfully predict the dimensional error in DMLS of two spinal cages. Therefore, these functions can be used to account for these errors in DMLS by design change or by adjusting DMLS scaling factors. Furthermore, the inconsistency of the DMLS-manufactured dimensions within the feature is shown to be in the same range of the dimensional inconsistency for features located at different positions on the build platform, implying that the location of the feature on the build platform has a negligible effect on the dimensional accuracy. Finally, it is shown that the error in the position accuracy of DMLS-manufactured features is negligible when the size dependency of the dimensional features is considered in the measurements.

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References

  1. Parthasarathy J, Starly B, Raman S, Christensen A (2010) Mechanical evaluation of porous titanium (Ti6Al4V) structures with electron beam melting (EBM). J Mech Behav Biomed Mater 3:249–259. https://doi.org/10.1016/J.JMBBM.2009.10.006

    Article  Google Scholar 

  2. Hollander DA, von Walter M, Wirtz T, Sellei R, Schmidt-Rohlfing B, Paar O, Erli HJ (2006) Structural, mechanical and in vitro characterization of individually structured Ti–6Al–4V produced by direct laser forming. Biomaterials 27:955–963. https://doi.org/10.1016/J.BIOMATERIALS.2005.07.041

    Article  Google Scholar 

  3. Ozden S, Ekici R, Nair F (2007) Investigation of impact behaviour of aluminium based SiC particle reinforced metal–matrix composites. Compos Part A Appl Sci Manuf 38:484–494. https://doi.org/10.1016/J.COMPOSITESA.2006.02.026

    Article  Google Scholar 

  4. Seabra M, Azevedo J, Araújo A, Reis L, Pinto E, Alves N, Santos R, Pedro Mortágua J (2016) Selective laser melting (SLM) and topology optimization for lighter aerospace componentes. Procedia Struct Integr 1:289–296. https://doi.org/10.1016/J.PROSTR.2016.02.039

    Article  Google Scholar 

  5. Braian M, Jönsson D, Kevci M, Wennerberg A (2018) Geometrical accuracy of metallic objects produced with additive or subtractive manufacturing: a comparative in vitro study. Dent Mater 34:978–993. https://doi.org/10.1016/j.dental.2018.03.009

    Article  Google Scholar 

  6. Allison J, Sharpe C, Seepersad CC (2017) A test part for evaluating the accuracy and resolution of a polymer powder bed fusion process. J Mech Des 139:100902. https://doi.org/10.1115/1.4037303

    Article  Google Scholar 

  7. Del Re F, Scherillo F, Contaldi V et al (2019) Mechanical properties characterisation of AlSi10Mg parts produced by laser powder bed fusion additive manufacturing. Int J Mater Res 110:436–446. https://doi.org/10.3139/146.111761

    Article  Google Scholar 

  8. Childs THC, Juster NP (1994) Linear and geometric accuracies from layer manufacturing. CIRP Ann 43:163–166. https://doi.org/10.1016/S0007-8506(07)62187-8

    Article  Google Scholar 

  9. Senthilkumaran K, Pandey PM, Rao PVM (2009) Influence of building strategies on the accuracy of parts in selective laser sintering. Mater Des 30:2946–2954. https://doi.org/10.1016/j.matdes.2009.01.009

    Article  Google Scholar 

  10. Weiss B, Diegel O, Storti D, Ganter M (2018) A process for estimating minimum feature size in selective laser sintering. Rapid Prototyp J 24:436–440. https://doi.org/10.1108/RPJ-01-2017-0001

    Article  Google Scholar 

  11. Meisel N, Williams C (2015) An investigation of key Design for Additive Manufacturing Constraints in multimaterial three-dimensional printing. J Mech Des 137:111406. https://doi.org/10.1115/1.4030991

    Article  Google Scholar 

  12. Moylan S, Slotwinski J, Cooke A, Jurrens K, Donmez MA (2014) An additive manufacturing test artifact. J Res Natl Inst Stand Technol 119:429–459. https://doi.org/10.6028/jres.119.017

    Article  Google Scholar 

  13. Moylan S, Slotwinski J, Cooke A, Jurrens K, Donmez MA (2012) Proposal for a standardized test artifact for additive. In: Solid freeform fabrication symposium, pp 902–920

    Google Scholar 

  14. Fotovvati B, Wayne SF, Lewis G, Asadi E (2018) A review on melt-Pool characteristics in laser welding of metals. Adv Mater Sci Eng 2018:1–18. https://doi.org/10.1155/2018/4920718

    Article  Google Scholar 

  15. Khorasani AM, Gibson I, Goldberg M, Littlefair G (2017) Production of Ti-6Al-4V acetabular shell using selective laser melting: possible limitations in fabrication. Rapid Prototyp J 23:110–121. https://doi.org/10.1108/RPJ-11-2015-0159

    Article  Google Scholar 

  16. Charles A, Elkaseer A, Mueller T et al (2018) Effect of process parameters on dimensional accuracy of Down-facing surfaces in selective laser melting of Ti6Al4V. In: Advancing precision in additive manufacturing, Berkeley, California

  17. Del Re F, Contaldi V, Astarita A et al (2018) Statistical approach for assessing the effect of powder reuse on the final quality of AlSi10Mg parts produced by laser powder bed fusion additive manufacturing. Int J Adv Manuf Technol 97:2231–2240. https://doi.org/10.1007/s00170-018-2090-y

    Article  Google Scholar 

  18. Zhang L, Zhang S, Zhu H, Hu Z, Wang G, Zeng X (2018) Horizontal dimensional accuracy prediction of selective laser melting. Mater Des 160:9–20. https://doi.org/10.1016/j.matdes.2018.08.059

    Article  Google Scholar 

  19. Han J, Wu M, Ge Y, Wu J (2018) Optimizing the structure accuracy by changing the scanning strategy using selective laser melting. Int J Adv Manuf Technol 95:4439–4447. https://doi.org/10.1007/s00170-017-1503-7

    Article  Google Scholar 

  20. Kirsch KL, Snyder JC, Stimpson CK et al (2017) Repeatability in performance of micro cooling geometries manufactured with laser powder bed fusion. In: 53rd AIAA/SAE/ASEE Jt Propuls Conf 1–14. https://doi.org/10.2514/6.2017-4706

    Chapter  Google Scholar 

  21. Kruth J-P, Vandenbroucke B, Van VJ, Mercelis P (2005) Benchmarking of different SLS/SLM procceses as rapid manufacturing techniques. In: Int Conf Polymers & Moulds Innovations (PMI) Gent, Belgium, pp 1–7

    Google Scholar 

  22. Delgado J, Ciuarana J, Reguant C, Cavallini B (2009) Innovative developements in design and manufacturing. In: 4Th international conference on advanced research and rapid prototyping, Leiria, pp 349–353

  23. Bagheri ZS, Melancon D, Liu L, Johnston RB, Pasini D (2017) Compensation strategy to reduce geometry and mechanics mismatches in porous biomaterials built with selective laser melting. J Mech Behav Biomed Mater 70:17–27. https://doi.org/10.1016/j.jmbbm.2016.04.041

    Article  Google Scholar 

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Acknowledgments

This material is based upon work under a Master Service Agreement #A 1361766 sponsored by Medtronic Sofamor Danek USA, Inc. BF would like to thank Mr. Joshua Redmond Felipe (UG Biomedical Engineering, University of Memphis) for his helps with the digital microscope measurements.

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  1. Department of Mechanical Engineering, The University of Memphis, Memphis, TN, 38152, USA

    Behzad Fotovvati & Ebrahim Asadi

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  1. Behzad Fotovvati
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  2. Ebrahim Asadi
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Correspondence to Ebrahim Asadi.

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Fotovvati, B., Asadi, E. Size effects on geometrical accuracy for additive manufacturing of Ti-6Al-4V ELI parts. Int J Adv Manuf Technol 104, 2951–2959 (2019). https://doi.org/10.1007/s00170-019-04184-1

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  • DOI: https://doi.org/10.1007/s00170-019-04184-1

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