Page 98 - ESAM-1-1

Engineering Science in
Additive Manufacturing Mechanical property of metal-based IPC

A C D

B

Figure 1. Design concept and specimen overview. (A) Different RVE spatial configurations of FCC, FCCR, and FCCH metamaterials. (B) Fabrication
process of truss and IPC metamaterials. (C) Final fabricated truss specimens. (D) IPC specimens.
Abbreviations: FCC: Face-centered cubic; FCCH: FCC vertical reinforcement truss microlattice metamaterial; FCCR: FCC hierarchical truss microlattice
metamaterial; IPC: Interpenetrating phase composite; RVE: Representative volume element.

measured masses were 26.663 ± 0.006 g, 26.896 ± 0.198 g, high precision, according to the standard ISO/ASTM
and 27.317 ± 1.147 g, respectively. The minor variations in 52900: 2015. The lattice frameworks were initially modeled
38
measured masses among the specimens, along with their in SOLIDWORKS (Dassault Systèmes SOLIDWORKS
small standard deviations, underscore the precision of the Corp., USA) and exported as stereolithography files to
specimen preparation process and the reproducibility of ensure compatibility with the 3D printing process. The SLM
the manufacturing technique. process was carried out on an XDM 250 machine (XDM

2.2. Specimen fabrication 3D Printing, China), equipped with a 500W Yb fiber laser
(IPG) featuring a beam diameter of 80 µm. The software
2.2.1. Selective laser melting (SLM) system used was XDM IntelliProc and XDM IntelliMake
The truss microlattices were fabricated using SLM, an (XDM 3D Printing, China). A layer thickness of 30 µm
advanced additive manufacturing technique renowned was employed to balance surface quality and fabrication
for its capability to produce complex geometries with efficiency. Ti-6Al-4V, a titanium alloy widely recognized

Volume 1 Issue 1 (2025) 3 doi: 10.36922/esam.8554