Selective Laser Melting of Inconel 718 under High Power and High Scanning Speed Conditions

Yusuke Tachibana; Toshi Taka Ikeshoji; Kazuya Nakamura; Makiko Yonehara; Hideki Kyogoku

doi:10.4028/www.scientific.net/MSF.941.1574

Paper Titles

Parameters Affecting Energy Absorption in Metal Foams
p.1552

Explosion Welding: Process Evolution and Parameters Optimization
p.1558

The Effect of Oxygen on the Phase Composition and Heat Treatment Behavior of Ti-V Alloys
p.1565

Fabrication of Cu-Al-Ni Shape Memory Alloy by Selective Laser Melting Process
p.1570

Selective Laser Melting of Inconel 718 under High Power and High Scanning Speed Conditions
p.1574

In Situ Synchrotron Analysis of Twinning Stresses in an Aged Mg-4.5Zn Alloy
p.1579

The Influence of Powder Particle and Grain Size on Parts Manufacturing by Powder Bed Fusion
p.1585

Deformation Twinning Behavior in High Ni-Austenitic Materials
p.1591

Microstructure and Fatigue Properties of TiAl with Unique Layered Microstructure Fabricated by Electron Beam Melting
p.1597

HomeMaterials Science ForumMaterials Science Forum Vol. 941Selective Laser Melting of Inconel 718 under High...

Selective Laser Melting of Inconel 718 under High Power and High Scanning Speed Conditions

Abstract:

Selective laser melting (SLM) process has advantages in building free shape and simplification of manufacturing process. Since Ni-base superalloys have lower ductility at lower temperature, it is difficult to produce the parts by means of other process like forging. Therefore, SLM process has already applied to produce Ni-base superalloy parts. However, SLM process needs a long process time comparing to casting and machining. One of the means to solve this problem is an application of the high scanning speed condition under high power laser output. In this research, the optimum fabrication condition of Inconel 718 superalloy by SLM process under high power and high scanning speed condition was investigated. As a result, the optimum fabrication condition was obtained using the process map. However, the relative density of the as-built specimen fabricated under high power and high scanning speed condition is lower than that of the as-built specimen fabricated under the condition of 300 W and 600 mm/s. This may be mainly due to the occurrence of gas-pores by key-hole like phenomenon in melt pool and the increase of spattering at high power and high scanning speed condition.

You might also be interested in these eBooks

View Preview

View Preview

View Preview

Info:

Periodical:

Materials Science Forum (Volume 941)

Pages:

1574-1578

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.941.1574

Citation:

Cite this paper

Online since:

December 2018

Authors:

Yusuke Tachibana*, Toshi Taka Ikeshoji, Kazuya Nakamura, Makiko Yonehara, Hideki Kyogoku

Keywords:

Additive Manufacturing (AM), Fabrication Condition, Inconel 718, Selective Laser Melting

Export:

RIS, BibTeX

Price:

Permissions:

Request Permissions

* - Corresponding Author

References

[1] I. Gibson, D.W. Rosen, and B. Stucker, Additive Manufacturing Technologies, Springer, (2010).

Google Scholar

[2] S.H. Fu, J.HX. Dong, M.C. Zhang, and X.S. Xie, Alloy design and development of INCONEL 718 type alloy,, Materials Science and Engineering A, 499(2009), pp.215-220.

DOI: 10.1016/j.msea.2007.11.115

Google Scholar

[3] E. Chlebus, K. Gruber, B. Kuznicka, J. Kurzac, and T. Kurzynowski, Effect of heat treatment on the microstructure and mechanical properties of Inconel 718 processed by selective laser melting,, Materials Science and Engineering A, 639(2015), pp.647-655.

DOI: 10.1016/j.msea.2015.05.035

Google Scholar

[4] M. Rombouts, J.P. Kruth, L. Froyen, and P. mercelis, Fundamentals of selective laser melting of alloyed steel powders,, CIRP Annals-Manufacturing Technology, 55(2006), pp.187-192.

DOI: 10.1016/s0007-8506(07)60395-3

Google Scholar

[5] Y. Tachibana, M. Araki, T.-T. Ikeshoji, K. Nakamura, H. Kyogoku Microstructure and Mechanical Properties of Inconel 718 Superalloy Fabricated by Selective Laser Melting,, Proceedings of the JSME/ASME 2017 Internatinal Conference on Materials and Proceeding ICMP2017, Los Angeles, USA (2017).

Google Scholar