Optimizing Infill Parameters for Improved Mechanical Performance and Cost Savings in Additive Manufacturing

ARIKAN, Volkan

doi:10.22399/ijcesen.1324071

Cited by 1 publication

(1 citation statement)

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“…Arikan et al conducted compression tests on PLA samples with varying infill patterns and densities. They found that triangular and tri-hexagonal patterns exhibited superior strength at higher densities, although their analysis focused solely on strength in the print direction [30].…”

Section: Introductionmentioning

confidence: 99%

Advanced FFF of PEEK: Infill Strategies and Material Characteristics for Rapid Tooling

Abbas,

Hedwig,

Balc

et al. 2023

Polymers

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Traditional vulcanization mold manufacturing is complex, costly, and under pressure due to shorter product lifecycles and diverse variations. Additive manufacturing using Fused Filament Fabrication and high-performance polymers like PEEK offer a promising future in this industry. This study assesses the compressive strength of various infill structures (honeycomb, grid, triangle, cubic, and gyroid) when considering two distinct build directions (Z, XY) to enhance PEEK’s economic and resource efficiency in rapid tooling. A comparison with PETG samples shows the behavior of the infill strategies. Additionally, a proof of concept illustrates the application of a PEEK mold in vulcanization. A peak compressive strength of 135.6 MPa was attained in specimens that were 100% solid and subjected to thermal post-treatment. This corresponds to a 20% strength improvement in the Z direction. In terms of time and mechanical properties, the anisotropic grid and isotropic cubic infill have emerged for use in rapid tooling. Furthermore, the study highlights that reducing the layer thickness from 0.15 mm to 0.1 mm can result in a 15% strength increase. The study unveils the successful utilization of a room-temperature FFF-printed PEEK mold in vulcanization injection molding. The parameters and infill strategies identified in this research enable the resource-efficient FFF printing of PEEK without compromising its strength properties. Using PEEK in rapid tooling allows a cost reduction of up to 70% in tool production.

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Section: Introductionmentioning

confidence: 99%