Paper Titles
Numerical Simulation of Sheet Deforming Caused by Laser Shocking
p.860
A Hybrid Model for Tool Condition Monitoring and Optimal Tool Management
p.865
Direct Joining between Ethylene Propylene Rubber and Cast Iron with Functional Polymeric Nanofilm
p.871
Study on the Machining Technology of Composite Materials
p.876
Research on Direct Laser Sintering of Ni-Alloy Powder and Microstructure Feature
p.881
Laser Driven Substructural Modification of Austenitic Stainless Steel
p.886
Taguchi Methods to Optimize TiN Coating Surface Roughness
p.891
Study on Process Decision Methodology for Sheet Metal Stamping by Case Based Technology
p.895
Intelligent Pattern Recognition of Manufacturing Features in Engineering Drawings
p.900

Research on Direct Laser Sintering of Ni-Alloy Powder and Microstructure Feature

Article Preview

Abstract:

The direct laser metal sintering experiments were carried out with nickel alloy powder material system. The melting–solidification approach was discussed. Microstructure and components of DLMS-process sample were analyzed. The incomplete liquid phase sintering is the main mechanism of the melting-solidification approach. In powder material system, the additive copper improves the wettability of melting material, and minimizes the balling phenomenon. The equiaxial dendrite and the dendrite are the primary crystal morphologies. The compositions of materials are distributed uniformly.

You might also be interested in these eBooks
Advances in Materials Manufacturing Science and Technology View Preview

Info:

Periodical:

Materials Science Forum (Volumes 471-472)

Pages:

881-885

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.471-472.881

Citation:

Cite this paper

Online since:

December 2004

Authors:

J.F. Zhao, Y. Li, J.H. Zhang

Keywords:

Balling Phenomenon, Direct Laser Metal Sintering, Microstructure, Ni-Alloy

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2004 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] J.J. Beaman, J.W. Barlow, D,L. Bourell, et al: Solid Freeform Fabrication: A New Direction in Manufacturing (Kluwer Academic, Dordrecht, 1997).

DOI: 10.1007/978-1-4615-6327-3_4

Google Scholar

[2] R. Knight, J. Knight, J.J. Beaman, et al: Proc. SFF Symposium, Austin (1996), p.349.

Google Scholar

[3] S. Cas, J.J. Beaman, M. Wohlert, et al: Proc. 7th Europ. Conf. On RP&M, Aachen, Germany (1998), p.297. Materials Science Forum Vols. ** 885.

Google Scholar

[4] F. H, Klocke and W. Meiners: Proc. Solid Freeform Fabrication Symposium (1996), p.141.

Google Scholar

[5] T. Laoui, L. Froyen and J.P. Kruth: Rapid Prototoyping and Manufacturing Conference, Dearborn, Michigan, USA (1998), p.435.

Google Scholar

[6] X.C. Wang: Int. J. Adv. Manufact. Technol. Vol. 19 (2002), p.351.

Google Scholar

[7] M. Agarwala: Rapid Prototyping Journal Vol. 1 (1995), p.22.

Google Scholar

[8] J.L. Liu and C. Liu: Journal of Chongqing University Vol. 16 (1993), p.109 (in Chinese).

Google Scholar

[9] D.L. Bourell, H.L. Marcus, J.W. Barlow, et al: Inter. J. of Powder Metallurgy Vol. 28 (1992), p.369.

Google Scholar

[10] G. Prabhu and D.L. Bourell: Proceedings of the Solid Freeform Fabrication Symposium, The University of Texas at Austin, Austin (1993), p.317.

Google Scholar

[11] J.L. Liu: Transactions of materials and heat treatment Vol. 11 (1990), p.13.

Google Scholar