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Numerical Analysis of Surface Formation of Titanium Parts During Direct Laser Deposition

  • S. Ivanov
  • E. Valdaytseva
  • S. Stankevich
Conference paper
Part of the Lecture Notes in Mechanical Engineering book series (LNME)

Abstract

The calculation method for determining technological mode parameters of the direct laser deposition process has been developed taking into account the features of a bead surface formation for titanium alloys. A method for solving the equilibrium equations of the liquid phase in the gravity field was proposed. This solution allows determining the deposited bead shape with a high accuracy and a minimal cost of computing resources. A comparison of calculated and experimental data of deposited bead parameters was presented. The DLD tests were carried out using VT6 (Ti6Al4V) powder and substrate. The highest error value does not exceed 6%. Thus, the calculation method for the deposited bead shape satisfactorily describes the process of heat transfer during the DLD process and can be used for preliminary selection of the process parameters. It is also established that the process parameters have a significant influence on the surface roughness of the grown part.

Keywords

Direct laser deposition Titanium alloy Temperature field Free surface Surface curvature 

Notes

Acknowledgements

The work was carried out with financial support from the Ministry of Education and Science of the Russian Federation in the framework of realization complex project Contract No. 14.574.21.0175, 26.09.2017.

References

  1. 1.
    Sha W, Malinov S (2009) Titanium alloys: modelling of microstructure, properties and applications. Elsevier, New YorkGoogle Scholar
  2. 2.
    Leyens C, Peters M (eds) (2003) Titanium and titanium alloys: fundamentals and applications. Wiley, New JerseyGoogle Scholar
  3. 3.
    Welsch G, Boyer R, Collings EW (eds) (1993). Materials properties handbook: titanium alloys. ASM InternationalGoogle Scholar
  4. 4.
    Donachie MJ (2000) Titanium: a technical guide. ASM InternationalGoogle Scholar
  5. 5.
    Davim JP (ed) (2014) Machining of titanium alloys. SpringerGoogle Scholar
  6. 6.
    Gu DD, Meiners W, Wissenbach K, Poprawe R (2012) Laser additive manufacturing of metallic components: materials, processes and mechanisms. Int Mater Rev 57(3):133–164.  https://doi.org/10.1179/1743280411Y.0000000014CrossRefGoogle Scholar
  7. 7.
    SamesWJ List FA, Pannala S, Dehoff RR, Babu SS (2016) The metallurgy and processing science of metal additive manufacturing. Int Mater Rev 61(5):315–360.  https://doi.org/10.1080/09506608.2015.1116649CrossRefGoogle Scholar
  8. 8.
    Turichin GA, Somonov VV, Babkin KD, Zemlyakov EV, Klimova OG (2016) High-speed direct laser deposition: technology, equipment and materials. Equip Mater 125(1):012009.  https://doi.org/10.1016/j.phpro.2015.11.054CrossRefGoogle Scholar
  9. 9.
    Klimova-Korsmik O, Turichin G, Zemlyakov E, Babkin K, Petrovsky P, Travyanov A (2016) Technology of high-speed direct laser deposition from Ni-based superalloys. Phys Proc 83:716–722.  https://doi.org/10.1016/j.phpro.2016.08.073CrossRefGoogle Scholar
  10. 10.
    Lewandowski JJ, Seifi M (2016) Metal additive manufacturing: a review of mechanical properties. Annu Rev Mater Res 46:151–186.  https://doi.org/10.1146/annurev-matsci-070115-032024CrossRefGoogle Scholar
  11. 11.
    Sames WJ, Unocic KA, Dehoff RR, Lolla T, Babu SS (2014) Thermal effects on microstructural heterogeneity of Inconel 718 materials fabricated by electron beam melting. J Mater Res 29(17):1920–1930.  https://doi.org/10.1557/jmr.2014.140CrossRefGoogle Scholar
  12. 12.
    Wei HL, Mazumder J, DebRoy T (2015) Evolution of solidification texture during additive manufacturing. Sci Rep 5:16446.  https://doi.org/10.1038/srep16446CrossRefGoogle Scholar
  13. 13.
    Travyanov AY, Petrovskiy PV, Turichin GA, Zemlyakov EV, Kovac M, Vondracek S, Bazhenova IA (2016) Prediction of solidification behaviour and microstructure of Ni based alloys obtained by casting and direct additive laser growth. Mater Sci Technol 32(8):746–751.  https://doi.org/10.1179/1743284715Y.0000000134CrossRefGoogle Scholar
  14. 14.
    Nguyen N (2004) Thermal analysis of welds. applied mechanics reviews. WITpress, AustraliaGoogle Scholar
  15. 15.
    Landau LD, Lifshits EM (1959) Fluid mechanics, by LD Landau and EM Lifshitz. Pergamon PressGoogle Scholar
  16. 16.
    Mills KC (2002) Recommended values of thermophysical properties for selected commercial alloys. Woodhead Publishing.  https://doi.org/10.1108/aeat.2002.12774eae.001
  17. 17.
    Paradis PF, Ishikawa T, Yoda S (2002) Non-contact measurements of surface tension and viscosity of niobium, zirconium, and titanium using an electrostatic levitation furnace. Int J Thermophys 23(3):825–842.  https://doi.org/10.1023/A:1015459222027CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  1. 1.St. Petersburg State Marine Technical UniversitySt. PetersburgRussia

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