Browse > Article
http://dx.doi.org/10.7777/jkfs.2019.39.6.110

A Study on Selective Laser Melting Process Considering Phase Transformation for Ti-6Al-4V  

Song, Seong-Il (Al & Mechanical Center, Institute for Advanced Engineering)
Park, Joo-Heon (Al & Mechanical Center, Institute for Advanced Engineering)
Jin, Byeong-Ju (Al & Mechanical Center, Institute for Advanced Engineering)
Lee, Kyoung-Don (Al & Mechanical Center, Institute for Advanced Engineering)
Publication Information
Journal of Korea Foundry Society / v.39, no.6, 2019 , pp. 110-115 More about this Journal
Abstract
Recently, various studies have been conducted on additive manufacturing technology developed using metal materials. In this study, a numerical analysis was introduced to analyze the effects of the thermal deformation and residual stress which arise during the SLM (selective laser melting) manufacturing process. A phase-transformation mechanism is implemented with the use of the Ti-6Al-4V material, in which a solid-state phase transformation (SSPT) can be induced during a numerical analysis. In this case, the phase of the Ti-6Al-4V material changes from a powder to a solid state and then to the Martensite phase in sequence during heating and cooling steps. The numerical analysis during the SLM process was verified by comparing the results of tensile tests with those from the numerical analysis based on the SSPT material properties.
Keywords
Numerical analysis; Phase transformation; Selective laser melting; Ti-6Al-4V;
Citations & Related Records
연도 인용수 순위
  • Reference
1 E.Olakanmi, Journal of Materials Processing Technology, "Selective laser sintering/melting (SLS/SLM) of pure Al, Al- Mg, and Al-Si powders: effect of processing conditions and powder properties", 213 (2013) 1387-1405.   DOI
2 E.Olakanmi, K.Dalgarno and R.Cochrane, Rapid Prototyping Journa, "lLaser sintering of blended Al-.Si powders", 18 (2012) 109-119.   DOI
3 A.Simchi and H.Pohl, Materials Science and Engineering: A, "Effect of laser sintering processing parameters on the microstructure and densification of iron powder", 359 (2003) 119-128.   DOI
4 M.Dewidar, K.Dalgarno and C.Wright, Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, "Processing conditions and mechanical properties of high-speed steel parts fabricated using direct selective laser sintering", 217 (2003) 1651-1662.   DOI
5 Roberts, I. A., Wang, C. J., Esterlein, R., Stanford, M. and Mynors, D. J, International Journal of Machine Tools & Manufacture, "A Three-Dimensional Finite Element Analysis of the Temperature Field during Laser Melting of Metal Powders in Additive Layer Manufacturing", 49 (2009) 916-923.   DOI
6 C.Li, C.H. Fu, Y.B. Guo and F.Z. Fang, Journal of Materials Processing Technology, "A multiscale modeling approach for fast prediction of part distortion in selective laser melting", 229 (2016) 703-712.   DOI
7 Lore Thijs, Frederik Verhaeghe, Tom Craeghs, Jan Van Humbeek and Jean-Pierre Kruth, Sience Direct, "A study of the microstructural evolution during selective laser melting of Ti-6Al-4V", 58 (2010) 3303-3312.
8 Chun CK and Kim SW, Journal of Welding and Joining, "The effect of heat treatment on microstructure and mechanical behaviors of laser direct energy deposited Ti-6Al-4V plate", 36 (2018) 75-80.   DOI
9 Pengfei Tan, Fei Shen, Biao Li and Kun Zhou, Material & Design, "A thermo-metallurgical-mechanical model for selective laser melting of Ti6Al4V", 165 (2019)
10 ABAQUS Documentaion User's Guide, (2017).