Relaksacja naprężeń w próbkach wykonanych z akrylonitrylu-butadienu-styrenu wytworzonych metodą FDM

Wiktor Szot

doi:10.17814/mechanik.2021.12.16

Abstract

Increased interest in fused deposition modeling (FDM) resulting, for example, from its use in the production of utility models determines the undertaking of research on mechanical and rheological properties of materials. Mechanical and rheological properties of models made of materials used in FDM technology depend on technological parameters. In this paper, the effect of 0° and 90° print orientation on stress relaxation was analyzed. Additionally, the usefulness of the rheological model to describe the relaxation curve was evaluated. Stress relaxation tests were performed by tensile testing. The five-parameter Maxwell-Wiechert model was used to describe stress relaxation. The tests showed little effect of print orientation on the rheological parameters of the five-parameter model. The Maxwell-Wiechert model showed a very good approximation to the stress relaxation curves.

Highlights

Fused deposition modeling (FDM) is one of the most popular methods in 3D printing
In the article [7] results of research on the influence of raster angles 0° and 90° on the mechanical properties of models made in FDM technology of acrylonitrile butadiene styrene (ABS) material
The results shown that these raster angles achieved the highest strengths of: 30.8 MPa and 2050 MPa

Summary

WIKTOR SZOT *

Increased interest in fused deposition modeling (FDM) resulting, for example, from its use in the production of utility models determines the undertaking of research on mechanical and rheological properties of materials. Mechanical and rheological properties of models made of materials used in FDM technology depend on technological parameters. The effect of 0° and 90° print orientation on stress relaxation was analyzed. The usefulness of the rheological model to describe the relaxation curve was evaluated. The five-parameter Maxwell-Wiechert model was used to describe stress relaxation. The tests showed little effect of print orientation on the rheological parameters of the five-parameter model. The Maxwell-Wiechert model showed a very good approximation to the stress relaxation curves. Właściwości mechaniczne (i reologiczne) modeli wytwarzanych z materiałów stosowanych w technologii FDM zależą od parametrów technologicznych. Do opisu relaksacji naprężeń zastosowano pięcioparametrowy model Maxwella-Wiecherta. Badania wykazały niewielki wpływ orientacji wydruku na parametry reologiczne modelu pięcioparametrowego. Model Maxwella-Wiecherta wykazał bardzo dobrą aproksymację do krzywych relaksacji naprężeń.

Introduction

Materials and methods

Rocwell Hardness

Findings

Conclusion