Abstract
A mesoscopic simulation based on random packing powder bed model was established to study the heat behavior of CP-Ti during selective laser melting. The characteristics of the molten pool under the interaction of laser and powder, and the influence of laser power on the thermal behavior, hydrodynamics and surface morphology evolution of the molten pool were studied. The results show that with the increase of laser power, the maximum temperature, temperature change rate, lifetime of molten pool and size are greatly improved. In addition, the characteristics and heat behavior of the molten pool under the double track are mainly studied in this study. It is found that the maximum temperature, lifetime, and the length and width of the molten pool of the second track are higher than those in the first, and with the increase of laser power, the length width ratio of the second track in molten pool becomes larger.
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Abbreviations
- AM:
-
Additive manufacturing
- CFD:
-
Computational fluid dynamics
- CP-Ti:
-
Commercial pure titanium
- c p :
-
Specific heat (J/(kg\(\cdot\)K))
- DEM:
-
Discrete element method
- \(\frac{d\gamma }{{dT}}\) :
-
Coefficient of surface tension
- E* :
-
Young's modulus
- E i , E j :
-
Young's modulus
- e:
-
The coefficient of recovery
- F t :
-
Tangential force
- F :
-
Volume fraction of fluid
- F n :
-
Normal force
- \(F_{n}^{d}\) :
-
Damping force
- \(F_{{\text{t}}}^{d}\) :
-
Tangential damping
- FVM:
-
Finite volume method
- f :
-
Volume fraction of liquid
- \(\vec{g}\) :
-
Gravitational acceleration (m/s2)
- G* :
-
Current shear modulus
- h :
-
Enthalpy
- k:
-
Thermal conduction (w/(mK))
- L f :
-
Latent heat of melting
- m*:
-
Equivalent mass
- M :
-
The molar mass
- P o :
-
Saturation pressure
- P laser :
-
Laser power (w)
- p r :
-
The recoil pressure (pa)
- P :
-
Pressure (pa)
- q laser :
-
Laser energy density
- \(\dot{q}\) :
-
The heat source term
- R g :
-
General gas constant
- R :
-
Focus diameter of the laser beam (μm)
- R* :
-
Equivalent radius
- Ri, R j :
-
Radius of contact sphere
- S n :
-
Normal stiffness
- S t :
-
The tangential stiffness
- SLM:
-
Selective laser melting
- T L :
-
The liquidus temperature
- T b :
-
The boiling temperature (k)
- T S :
-
The solidus temperature (K)
- T :
-
Temperature (K)
- T m :
-
Melting temperature (K)
- t :
-
Time (s)
- \(v_{t}^{{\overrightarrow {rel} }}\) :
-
Tangential component of the relative velocity
- \(v_{t}^{{\overrightarrow {rel} }}\) :
-
Current shear modulus
- v i, v j :
-
Poisson's ratio
- VOF:
-
Volume of Fluid
- \(v_{n}^{{\overrightarrow {rel} }}\) :
-
Normal component of the relative velocity
- \(\vec{v}\) :
-
Velocity vector(m/s)
- Vs :
-
Laser scanning speed(mm/s)
- (x 0, y 0):
-
The initial position of the laser
- \(\gamma\) :
-
Surface tension
- \(\delta_{n}\) :
-
Normal overlap
- \(\eta\) :
-
Laser absorptivity of the material
- \(\mu\) :
-
Dynamic viscosity (kg/(ms))
- \(\mu_{r}\) :
-
Rolling friction coefficient
- \(\mu_{s}\) :
-
Static friction coefficient
- \(\rho\) :
-
Density (kg/m3)
- \(\Delta H_{v}\) :
-
The latent heat of evaporation (J/kg)
- \(\omega_{i}\) :
-
Unit angular velocity vector
References
D.K. Pattanayak, A. Fukuda, T. Matsushita, M. Takemoto, S. Fujibayashi, K. Sasaki, N. Nishida, T. Nakamura, T. Kokubo, Acta Biomater. 7, 1398 (2011)
A.K. Patnaik, N. Poondla, C.C. Menzemer, T.S. Srivatsan, Mater. Sci. Eng. A 590, 390 (2014)
D.D. Gu, Y.C. Hagedorn, W. Meiners, G.B. Meng, R.J.S. Batista, K. Wissenbach, R. Poprawe, Acta Mater. 60, 3849 (2012)
H. Attar, M. Calin, L.C. Zhang, S. Scudino, J. Eckert, Mater. Sci. Eng. A 593, 170 (2014)
J. Shen, B. Chen, J. Umeda, K. Kondoh, Mater. Sci. Eng. A 716, 1 (2018)
E. Santos, K. Osakada, M. Shiomi, M. Morita, F. Abe, Fabrication of titanium dental implants by selective laser melting. in Proceedings of the 5th International Symposium on Laser Precision Microfabrication, Nara, 11–14 May 2004
C.N. Elias, J.H.C. Lima, R. Valiev, M.A. Meyers, JOM 60, 46 (2008)
J.-P. Kruth, G. Levy, F. Klocke, T.H.C. Child, CIRP Ann.-Manuf. Techn. 56, 730 (2007)
D.D. Gu, W. Meiners, K. Wissenbach, R. Poprawe, Int. Mater. Rev. 57, 133 (2012)
T. DebRoy, H.L. Wei, J.S. Zuback, T. Mukherjee, J.W. Elmer, J.O. Milewski, A.M. Beese, A. Wilson-Heid, A. De, W. Zhang, Prog. Mater. Sci. 92, 112 (2018)
D.D. Gu, H.Q. Wang, G.Q. Zhang, Metall Mater. Trans. A 45, 464 (2014)
M. Das, V.K. Balla, D. Basu, S. Bose, A. Bandyopadhyay, Scripta Mater. 63, 438 (2010)
X.P. Li, J. Van Humbeeck, J.P. Kruth, Mater. Design 116, 352 (2017)
N. Jeyaprakash, C.-H. Yang, K.R. Ramkumar, Met. Mater. Int. (2021). https://doi.org/10.1007/s12540-020-00933-0
Y. Li, D. Gu, Addit. Manuf. 1–4, 99 (2014)
P. Lu, M. Wu, X. Liu, W. Duan, J. Han, Met. Mater. Int. 26, 1182 (2020)
B. Schoinochoritis, D. Chantzis, K. Salonitis, P. I. Mech. Eng. B J. Eng. 231, 96 (2014)
G.M. Karthik, H.S. Kim, Met. Mater. Int. 27, 1 (2021)
W.J. Sames, K.A. Unocic, R.R. Dehof, T. Lolla, S.S. Babu, J. Mater. Res. 29, 1920 (2014)
P.S. Cook, A.B. Murphy, Addit. Manuf. 31, 100909 (2020)
A. Raghavan, H.L. Wei, T.A. Palmer, T. DebRoy, J. Laser. Appl. 25, 052006 (2013)
C.-J. Li, T.-W. Tsai, C.-C. Tseng, Phys. Procedia 83, 1444 (2016)
C. Panwisawas, C.L. Qiu, Y. Sovani, J.W. Brooks, M.M. Attallah, H.C. Basoalto, Scripta Mater. 105, 14 (2015)
M. Markl, C. Körner, Annu. Rev. Mater. Res. 46, 93 (2016)
E.J.R. Parteli, T. Pöschel, Powder Technol. 288, 96 (2016)
Y.S. Lee, W. Zhang, Modeling of heat transfer, Addit. Manuf. 12, 178 (2016)
I. Kovaleva, O. Kovalev, I. Smurov, Phys. Procedia 56, 400 (2014)
Y.S. Lee, W. Zhang, Mesoscopic simulation of heat transfer and fluid flow in laser powder bed additive manufacturing. in Proceedings of 26th Solid Freeform Fabrication Symposium, Austin, 10-12 August 2015
W. Yan, W. Ge, Y. Qian, S. Lin, B. Zhou, W.K. Liu, Acta Mater. 134, 324 (2017)
I. Yadroitsev, A. Gusarov, I. Yadroitsava, I. Smurov, J. Mater. Process. Tech. 210, 1624 (2010)
L. Cao, Int. J. Heat Mass Tran. 141, 1036 (2019)
Y. Li, D. Gu, Mater. Design 63, 856 (2014)
S. Liu, J. Zhu, H. Zhu, J. Yin, C. Chen, X. Zeng, Opt. Laser Technol. 123, 105924 (2020)
Z. Wang, W. Yan, W.K. Liu, M. Liu, Comput. Mech. 63, 649 (2019)
C.W. Hirt, B.D. Nichols, J. Comput. Phys. 39, 201 (1981)
EDEM, User Guide, DEM Solutions Ltd., Edinburgh, Scotland, UK. Copyright © (2011). http://tm.spbstu.ru/images/2/28/EDEM2.4_user_guide.pdf. Accessed 25 Aug 2021
Y. Hu, J. Li, J. Mater. Process. Tech. 249, 426 (2017)
H. Hertz, J. Reine Angew. Math. 92, 156 (1881)
R.D. Mindlin, J. Appl. Mech. 16, 259 (1949)
R.D. Mindlin, H. Deresiewicz, J. Appl. Mech. 20, 327 (1953)
Y. Tsuji, T. Tanaka, T. Ishida, Powder Technol. 71, 239 (1992)
P.A. Cundall, O.D.L. Strack, Géotechnique 30, 331 (1980)
H. Sakaguchi, E. Ozaki, T. Igarashi, Int. J. Mod. Phys. B 7, 1949 (1993)
Flow3D: Version 11 0.1.2: User Manual, Flow Science, Santa Fe, NM, USA, (2014)
S. Kolossov, E. Boillat, R. Glardon, P. Fischer, M. Locher, Int. J. Mach. Tool. Manu. 44, 117 (2004)
V.R. Voller, A.D. Brent, C. Prakash, Int. J. Heat Mass Tran. 32, 1719 (1989)
Y.-C. Wu, C.-H. San, C.-H. Chang, H.-J. Lin, R. Marwan, S. Baba, W.-S. Hwang, J. Mater. Process. Tech. 254, 72 (2018)
B. Cheng, X. Li, C. Tuile, A. Ilin, H. Willeck, U. Hartel, Multi-physics modeling of single-track scanning in selective laser melting: powder compaction effect. in Proceedings of 29th Annual International Solid Freeform Fabrication Symposium-An Additive Manufacturing Conference, Austin, 13–15 August 2018
B. Liu, G. Fang, L. Lei, W. Liu, Appl. Math. Model. 79, 506 (2020)
S. Lee, J. Kim, J. Choe, S.-W. Kim, J.-K. Hong, Y.S. Choi, Met. Mater. Int. 27, 78 (2021)
S.A. Khairallah, A.T. Anderson, A. Rubenchik, W.E. King, Acta Mater. 108, 36 (2016)
K. Dai, L. Shaw, Acta Mater. 53, 4743 (2005)
L. Cao, Comp. Mater. Sci. 179, 109686 (2020)
W. Yuan, H. Chen, T. Cheng, Q. Wei, Mater. Design 189, 108542 (2020)
S.A. Khairallah, A. Anderson, J. Mater. Process. Tech. 214, 2627 (2014)
R. Li, J. Liu, Y. Shi, L. Wang, W. Jiang, Int. J. Adv. Manuf. Tech. 59, 1025 (2012)
D. Dai, D. Gu, Int. J. Mach. Tool. Manu. 100, 14 (2016)
A. Simchi, H. Pohl, Mater. Sci. Eng. A 359, 119 (2003)
Acknowledgement
The authors are grateful for the travel support from the Department of international Affairs at Nanchang University, and the financial grants from the National Natural Science Foundation of China (11562011 and 51566012), Natural Science Foundation of Jiangxi Provence of China (20181BAB206031), 2018 Jiangxi Province Graduate Student Innovation Special Fund Project(YC2018-B004).
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Ye, W., Bao, J., Lei, J. et al. Multiphysics Modeling of Thermal Behavior of Commercial Pure Titanium Powder During Selective Laser Melting. Met. Mater. Int. 28, 282–296 (2022). https://doi.org/10.1007/s12540-021-01019-1
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DOI: https://doi.org/10.1007/s12540-021-01019-1