StrutSurf: A tool for analysis of strut morphology and surface roughness in additively manufactured lattices

Abstract

Additively manufactured lattice materials are of great interest in many applications, however the surface defects generated during manufacturing can prove a significant barrier. The small feature size and intricate geometry makes characterisation of lattice struts difficult, so we present StrutSurf as a new tool for analysis of lattice struts. Using micro-CT data, StrutSurf allows random sampling of struts within a lattice, and automates analysis to provide detailed morphological information such as strut diameter, ellipticity, orientation, and surface roughness. StrutSurf will enable a range of new research questions to be investigated such as the effects of surface treatments and other manufacturing methods on strut morphology and roughness.

Keywords

• Additive manufacturing
• Micro-strut
• Lattice material
• Surface roughness