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2016•The Proceedings of Conference of Hokuriku-Shinetsu BranchOpen access

1009 Effect of Processing Condition on Mechanical Properties of Maraging Steel by Selective Laser Melting

Takafumi D. Yamamoto, Himi Kiyokazu, Mitsuru Yokoyama

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Abstract

In this work, the influence of processing condition on relative density and mechanical properties of specimens prepared by Selective Laser Melting (SLM) technique using 18-Ni maraging steel powder was investigated. The results show that it is necessary to control laser energy density of about 65-80 J/mm^3 to obtain SLM specimens with relative density higher than 99.9%. In addition, it was confirmed that mechanical properties of dense SLM specimens were less influenced by building direction on the base plate.

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In this work, the influence of processing condition on relative density and mechanical properties of specimens prepared by Selective Laser Melting (SLM) technique using 18-Ni maraging steel powder was investigated. The results show that it is necessary to control laser energy density of about 65-80 J/mm^3 to obtain SLM specimens with relative density higher than 99.9%. In addition, it was confirmed that mechanical properties of dense SLM specimens were less influenced by building direction on the base plate.

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Available abstract

In this work, the influence of processing condition on relative density and mechanical properties of specimens prepared by Selective Laser Melting (SLM) technique using 18-Ni maraging steel powder was investigated. The results show that it is necessary to control laser energy density of about 65-80 J/mm^3 to obtain SLM specimens with relative density higher than 99.9%. In addition, it was confirmed that mechanical properties of dense SLM specimens were less influenced by building direction on the base plate.

Key concepts: Selective laser melting, Maraging steel, Materials science, Relative density, Laser, Composite material, Base (topology), Metallurgy

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