Manufacturing of 18 Ni Marage 300 Steel Samples by Selective Laser Melting

Sabina L. Campanelli; N. Contuzzi; Antonio D. Ludovico

doi:10.4028/www.scientific.net/AMR.83-86.850

Paper Titles

Laser Polishing Operation for Die and Moulds Finishing
p.818

Numerical Material Flow Optimization of a Multi-Hole Extrusion Process
p.826

Engineering Materials and Manufacturing Processes from Qur’anic Perspective
p.834

Characterization of Colmonoy 227-F Samples Obtained by Direct Laser Metal Deposition
p.842

Manufacturing of 18 Ni Marage 300 Steel Samples by Selective Laser Melting
p.850

On the Modeling of Laser as a Moving Distributed Volumetric Heat Source for Laser Cutting Simulation
p.858

Influence of Billet Quality on Hot Extrusion Die Life and its Relationship with Process Parameters
p.866

Experiments on Olive Husk-Addition to Masonry Clay Bricks on their Mechanical Properties, and their Application and Manufacturability as an Insulating Material
p.874

Joining of Polycarbonate Ring/Disk to Metal Sheet/Shaft and its Easy Disassembly
p.881

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 83-86Manufacturing of 18 Ni Marage 300 Steel Samples by...

Manufacturing of 18 Ni Marage 300 Steel Samples by Selective Laser Melting

Abstract:

Selective Laser Sintering (SLS), has become one of the most popular technique in the layer manufacturing processes because of the ability to build complex geometries models with a wide range of materials. Recently, the interest in SLS is mainly focused into metals because of the possibility of producing models not only for the prototyping step but also as functional parts. Driven by the need to process nearly full dense objects, with mechanical properties comparable to those of bulk materials and by the desire to avoid long post processing cycles, Selective Laser Melting (SLM) has been developed. SLM represents an evolution of the SLS process: in the first one the complete melting of powder occurs rather than sintering or partial melting of the second one. SLM, is mainly suitable to produce tools and inserts with internal undercuts and channels for conformal cooling for injection molding. A careful control of the parameters which influence the melting and the amount of energy density involved in the process is necessary to get parts with optimized quality. The aim of this paper was to study the effect of the main process parameters (laser power, scan speed, scan spacing, hatch spacing, scanning strategy) and of thermal treatments on the quality of built parts in terms of hardness, density, microstructure, and mechanical properties. The 18 Ni Marage 300 steel, one of the most used materials in the die industry was investigated, using a Nd:YAG laser with a maximum power of 100W.

You might also be interested in these eBooks

Advances in Materials and Processing Technologies

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 83-86)

Pages:

850-857

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.83-86.850

Citation:

Cite this paper

Online since:

December 2009

Authors:

Sabina L. Campanelli, N. Contuzzi, Antonio D. Ludovico

Keywords:

Characterization, Maraging Steel, Optimization, Selective Laser Melting (SLM)

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

References

[1] M. Badrossamay, T.H.C. Childs, Further studies in selective laser melting of stainless and tool steel powders, International Journal of Machine Tools & Manufacture, Vol. 47 (2007) 779- 784.

DOI: 10.1016/j.ijmachtools.2006.09.013

Google Scholar

[2] D.T. Pham, R.S. Gault, A comparison of rapid prototyping technologies, International Journal of Machine Tools and Manufacture, Vol. 38 (1997) 1257-1287.

DOI: 10.1016/s0890-6955(97)00137-5

Google Scholar

[3] J.P. Kruth, P. Mercelis, J. Van Vaerenbergh, L. Froyen, M. Rombouts, Selective laser melting of iron-based powder, Journal of Materials Processing Technology, Vol. 149, (2004), 616-622.

DOI: 10.1016/j.jmatprotec.2003.11.051

Google Scholar

[4] J.M. Pardal, S.S.M. Tavares, V.F. Terra, M.R. Da Silva, D.R. Dos Santos, M. A, Modeling of precipitation hardening during the aging and overaging of 18Ni-Co-Mo-Ti maraging 300 steel, Journal of Alloys and Compounds, Vol. 393 (2005), 109-113.

DOI: 10.1016/j.jallcom.2004.09.049

Google Scholar

[5] J. M. Pardal, S. S. M. Tavares, M. P. Cindra Fonseca, Study of the austenite quantification by X-ray diffraction in the 18Ni-Co-Mo-Ti maraging 300 steel, J Mater Sci, Vol. 41 (2006), 2301- 2307.

DOI: 10.1007/s10853-006-7170-y

Google Scholar

[6] J. M. Pardal, S. S. M. Tavares , M. P. Cindra Fonseca, M. R. da Silva, J. M. Neto, H. F. G. Abreu, Influence of temperature and aging time on hardness and magnetic properties of the maraging steel grade 300, J Mater Sci, Vol. 42 (2007), 2276-2281.

DOI: 10.1007/s10853-006-1317-8

Google Scholar

[7] J.P. Kruth, A.D. Ludovico, Campanelli S.L., J. Van Vaerenbergh, M. Rombouts, Statistical Optimisation Of Selective Laser Sintering Of Metal Powders, Intelligent Computation in Manufacturing Engineering, (2004), Sorrento.

Google Scholar

[8] L. Lu, J.Y.H. Fuh,. & Y.S. Wong, Laser-Induced materials and processes for rapid prototyping, Kluwer Academic publishers, ISBN 0-7923-7400-2, Boston, (2001).

Google Scholar