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

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

Research output: Contribution to journalArticlepeer-review


Selective laser melting (SLM) is one of the additive manufacturing (AM) methods which is applicable to metal. This technique makes it possible to form complex internal shapes such as lattice structures. The lattice structure is expected to have weight reduction and vibration suppression effects on the product. In addition, a support structure is essential for the SLM fabrication process, which has the role of supporting the product and dissipating heat from the product. However, steep temperature gradients due to local laser irradiation and non-uniform heat conduction during the process can cause bending and cracking of the product. In particular, the support structure and lattice structure consisting of thin metal struts are greatly affected by process conditions, so it is necessary to select conditions suitable for stable and high-precision modeling. 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 the volumetric energy density was confirmed, and suitable laser conditions were examined. In the compression test of the lattice structure, it was clear that the amount of energy absorption changed depending on the laser power, and the condition of 240 W achieved the maximum energy absorption.

Original languageEnglish
JournalJournal of Advanced Mechanical Design, Systems and Manufacturing
Issue number1
Publication statusPublished - 2023


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

ASJC Scopus subject areas

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering


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