Parametric CAD Modelling of Octahedral Lattice Structures for Vibration Reduction in Tool

Authors : Ekrem Özkaya

Pages : 886-904

Doi:10.53501/rteufemud.1813260

View : 59 | Download : 99

Publication Date : 2025-12-31

Article Type : Research Paper

Abstract :This paper presents the development of a three-dimensional internal lattice structure for volume modelling using Computer-Aided Design (CAD), suitable for Selective Laser Melting (SLM). Based on the favorable physical and geometric characteristics of the truncated octahedron, a uniformly distributed cellular architecture was created to achieve high mechanical efficiency. For this purpose, a parametric software tool, OctMatrix, was developed to generate customizable matrix geometries derived from mathematical formulation. The aim of the study was to design a stable and dynamically optimized lightweight structure to reduce vibrations in a turning tool holder. Numerical and experimental investigations were performed on a conventional solid-steel tool holder and on three tool holders incorporating truncated-octahedral lattice structures. The results show significant improvements in dynamic behavior: total deformation was reduced by approximately 90%, and equivalent stress decreased by around 18%, demonstrating the strong vibration-damping potential of the lattice-reinforced design. By enabling automated and parameterized 3D CAD modelling, the OctMatrix approach represents a notable innovation for the tailored design of lightweight structures intended for additive manufacturing. This contributes to improved dynamic performance in machining applications and provides a foundation for future customization and optimization of lattice-based tool holder systems.
Keywords : Biyonik 3D model, Kesik oktahedron, Katmanlı üretim, Seçici lazer eritme, Yazılım modülü, Titreşim azaltma

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