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Forming Simulation and Experimental Verification of Combined Formation of Selective Laser Sintering and Cold Isostatic Pressing

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Abstract

Selective laser sintering (SLS) could manufacture complex parts rapidly which, however, have high porosity and low intensity. While the parts made by cold isostatic pressing have advantages of uniform structure without composition segregation, high-dimension precision and high density. However, it could not form high complex parts because of the difficulties in manufacturing bag. A combination of SLS and cold isostatic pressing is expected to use the advantages of the two methods and is an efficient way to make complicated parts rapidly. After SLS and cold isostatic pressing, dimensions of parts decrease and relative density increases. To predict final dimensions and density, the finite element simulations are performed for cold isostatic pressing. The results show the parts made from ball shape powder contract symmetrically. The simulation results agree with the achieved geometries within 4%. Comparisons are made with that parts made from irregular powder. The SEM pictures after SLS are also showed. This has an important indication to process of SLS and cold isostatic pressing forming.

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References

  1. B. Odonnchadha and A. Tansey, A Note on Rapid Metal Composite Tooling by Selective Laser Sintering, J. Mater. Process. Technol., 2004, 153-154, p 28–34

    Article  CAS  Google Scholar 

  2. J.P. Kruth, G. Levy, F. Klocke et al., Consolidation Phenomena in Laser and Powder-Bed Based Layered Manufacturing, Ann. CIRP, 2007, 56(2), p 730–759

    Article  Google Scholar 

  3. J.H. Liu, Y.S. Shi, Z.L. Lu et al., Manufacturing Near Dense Metal Parts via Indirect Selective Laser Sintering Combined with Isostatic Pressing, Appl. Phys. A, 2007, 89, p 743–748

    Article  CAS  Google Scholar 

  4. J.M. Torralba, E. Gordo, M.A. Jimenez et al., New Developments in Powder Technology, Adv. Mater. Res., 2007, 23, p 1–8

    Article  CAS  Google Scholar 

  5. S.J. Mashl, Hot Isostatic Pressing of Particulate Materials, Int. J. Powder Metall., 2005, 41(5), p 45–55

    CAS  Google Scholar 

  6. M. Agarwala, D. Bourell, J. Beaman et al., Post-Processing of Selective Laser Sintered Metal Parts, Rapid Prototyping J., 1995, 1(2), p 36–44

    Article  Google Scholar 

  7. Y.S. Shi, L.H. Ren, Q.S. Wei et al., Simulation of Cold Isostatic Pressing of Part by Selective Laser Sintering, J. Huazhong Univ. Sci. Technol. (Nat. Sci. Ed.), 2007, 35(12), p 91–94 (in Chinese)

    CAS  Google Scholar 

  8. K.H. Roscoe and J.B. Burland, On the Generalized Stress-Strain Behavior of “Wet” Clay, Engineering Plasticity, complied by J. Heyman and F.A. Leckie, Cambridge University Press, Cambridge, England, 1968, p 535–609

  9. H.F. Chen, Elasticity and Plasticity, China Architecture and Building Press, BeiJing, 2003 (in Chinese)

    Google Scholar 

  10. X.K. Sun and Y.Y. Wang, Die Compaction Densification Behavior of Metal Powders, Chin. J. Nonferrous Met., 1999, 9(Suppl 1), p 239–241 (in Chinese)

    CAS  Google Scholar 

  11. F.W. James, Materials Science and Engineering Handbook, CRC Press, Boca Raton, 2001

    Google Scholar 

  12. R.J. Henderson, H.W. Chandler, A.R. Akisanya et al., Finite Element Modelling of Cold Isostatic Pressing, J. Eur. Ceram. Soc., 2000, 20(8), p 1121–1128

    Article  CAS  Google Scholar 

  13. M. Reiterer, T. Kraft, U. Janosovits et al., Finite Element Simulation of Cold Isostatic Pressing and Sintering of SiC Components, Ceram. Int., 2004, 30(2), p 177–183

    Article  CAS  Google Scholar 

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Acknowledgments

This research is funded by National 863 Project (2007AA03Z115) and Chinese Postdoctor Fund (20070410277). Appreciations are due to Doc. Lu Zhong Liang for his experiments of CIP and Prof. Wu Xin hua for revising the paper as well as Analytical and Testing Center of HuaZhong University of Science and Technology for SEM.

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  1. State Key Laboratory of Material Forming and Die and Mould Technology, HuaZhong University of Science and Technology, Wuhan, 430074, China

    Yan Ying Du, Yu Sheng Shi & Qing Song Wei

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  1. Yan Ying Du
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  2. Yu Sheng Shi
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  3. Qing Song Wei
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Correspondence to Yan Ying Du.

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Du, Y.Y., Shi, Y.S. & Wei, Q.S. Forming Simulation and Experimental Verification of Combined Formation of Selective Laser Sintering and Cold Isostatic Pressing. J. of Materi Eng and Perform 20, 185–190 (2011). https://doi.org/10.1007/s11665-010-9685-2

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  • DOI: https://doi.org/10.1007/s11665-010-9685-2

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