Mechanical property evaluation of the SLM support structure and lattice structure of SUS316L

Wataru Okochi; Yuriko Ikeda; Ryo Koike; Takanori Mori; Yoko Hirono; Teppei Maki; Kazuhiro Takaki; Yasuhiro Kakinuma

Mechanical property evaluation of the SLM support structure and lattice structure of SUS316L

Wataru Okochi, Yuriko Ikeda, Ryo Koike, Takanori Mori, Yoko Hirono, Teppei Maki, Kazuhiro Takaki, Yasuhiro Kakinuma

Department of System Design Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

Selective laser melting (SLM) is one of the additive manufacturing (AM) methods which is applicable to metal. Although this technology enables to form complex inner shapes such as lattice structure, steep temperature gradients due to local laser irradiation and uneven heat conduction during the process may cause bending and cracking of the product. In this study, the influence of laser power and scanning speed on the mechanical characteristics of the support structure and lattice structure formed by SLM is investigated. In the tensile test of the support structure, a positive correlation with volumetric energy density was confirmed. In the compression test of the lattice structure, it was clear that larger amount of heat energy from the laser makes struts of lattice structure thicker and its Young's modulus higher.

Original language	English
Pages	452-455
Number of pages	4
Publication status	Published - 2021
Event	10th International Conference on Leading Edge Manufacturing Technologies in 21st Century, LEM 2021 - Virtual, Online Duration: 2021 Nov 14 → 2021 Nov 18

Conference

Conference	10th International Conference on Leading Edge Manufacturing Technologies in 21st Century, LEM 2021
City	Virtual, Online
Period	21/11/14 → 21/11/18

Keywords

Additive manufacturing
Laser processing
Lattice structure
Mechanical properties
Selective Laser Melting (SLM)

ASJC Scopus subject areas

Artificial Intelligence
Industrial and Manufacturing Engineering
Electronic, Optical and Magnetic Materials

Cite this

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title = "Mechanical property evaluation of the SLM support structure and lattice structure of SUS316L",

abstract = "Selective laser melting (SLM) is one of the additive manufacturing (AM) methods which is applicable to metal. Although this technology enables to form complex inner shapes such as lattice structure, steep temperature gradients due to local laser irradiation and uneven heat conduction during the process may cause bending and cracking of the product. In this study, the influence of laser power and scanning speed on the mechanical characteristics of the support structure and lattice structure formed by SLM is investigated. In the tensile test of the support structure, a positive correlation with volumetric energy density was confirmed. In the compression test of the lattice structure, it was clear that larger amount of heat energy from the laser makes struts of lattice structure thicker and its Young's modulus higher.",

keywords = "Additive manufacturing, Laser processing, Lattice structure, Mechanical properties, Selective Laser Melting (SLM)",

author = "Wataru Okochi and Yuriko Ikeda and Ryo Koike and Takanori Mori and Yoko Hirono and Teppei Maki and Kazuhiro Takaki and Yasuhiro Kakinuma",

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language = "English",

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TY - CONF

T1 - Mechanical property evaluation of the SLM support structure and lattice structure of SUS316L

AU - Okochi, Wataru

AU - Ikeda, Yuriko

AU - Koike, Ryo

AU - Mori, Takanori

AU - Hirono, Yoko

AU - Maki, Teppei

AU - Takaki, Kazuhiro

AU - Kakinuma, Yasuhiro

PY - 2021

Y1 - 2021

N2 - Selective laser melting (SLM) is one of the additive manufacturing (AM) methods which is applicable to metal. Although this technology enables to form complex inner shapes such as lattice structure, steep temperature gradients due to local laser irradiation and uneven heat conduction during the process may cause bending and cracking of the product. In this study, the influence of laser power and scanning speed on the mechanical characteristics of the support structure and lattice structure formed by SLM is investigated. In the tensile test of the support structure, a positive correlation with volumetric energy density was confirmed. In the compression test of the lattice structure, it was clear that larger amount of heat energy from the laser makes struts of lattice structure thicker and its Young's modulus higher.

AB - Selective laser melting (SLM) is one of the additive manufacturing (AM) methods which is applicable to metal. Although this technology enables to form complex inner shapes such as lattice structure, steep temperature gradients due to local laser irradiation and uneven heat conduction during the process may cause bending and cracking of the product. In this study, the influence of laser power and scanning speed on the mechanical characteristics of the support structure and lattice structure formed by SLM is investigated. In the tensile test of the support structure, a positive correlation with volumetric energy density was confirmed. In the compression test of the lattice structure, it was clear that larger amount of heat energy from the laser makes struts of lattice structure thicker and its Young's modulus higher.

KW - Additive manufacturing

KW - Laser processing

KW - Lattice structure

KW - Mechanical properties

KW - Selective Laser Melting (SLM)

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M3 - Paper

AN - SCOPUS:85124790754

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T2 - 10th International Conference on Leading Edge Manufacturing Technologies in 21st Century, LEM 2021

Y2 - 14 November 2021 through 18 November 2021

ER -

Mechanical property evaluation of the SLM support structure and lattice structure of SUS316L

Abstract

Conference

Keywords

ASJC Scopus subject areas

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