The Effect Of Thermal Annealing Between Glass Transition Temperature And Crystallization Temperature On Dimensional Accuracy Of 3D Printed Part

Suteja, The Jaya and Evan, Michael and Tjandra, Sunardi (2022) The Effect Of Thermal Annealing Between Glass Transition Temperature And Crystallization Temperature On Dimensional Accuracy Of 3D Printed Part. Media Mesin: Majalah Teknik Mesin, 23 (1). pp. 36-43. ISSN 1441 – 4348; E-ISSN: 2541 - 4577

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Abstract

The dimensional accuracy of a 3D printed part affects the function, strength, and assembly process of the part. This study aims to determine the effect of the implementation of thermal annealing process on the dimensional accuracy of Polylactic Acid parts printed by Fused Filament Fabrication. This research uses 32 factorial design methodology with two replications. Two investigated parameters of the thermal annealing process are the annealing temperature and the holding time. The annealing temperature is set between the glass transition temperature and the crystallization temperature, which are 65 °C, 75 °C, and 85 °C. The holding times used are 45 minutes, 60 minutes, and 75 minutes. The response of this research is the dimensional deviation in the X, Y, and Z directions. Based on the experiment result, it was found that the use of higher annealing temperature increases the X, Y, and Z-direction deviations. The analysis result indicates that the use of annealing temperature slightly above the glass transition temperature results in a low degree of crystallization but produces higher dimensional accuracy than annealing temperature below the crystallization temperature. While the use of a holding time of 60 minutes increases the deviation in the X and Z directions but decreases the deviation in the Y direction.

Item Type:	Article
Uncontrolled Keywords:	Thermal annealing, glass transition, crystallization, dimensional accuracy, 3D printing
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering > Department of Manufacturing Engineering
Depositing User:	Jaya Suteja 61106
Date Deposited:	29 Dec 2021 13:34
Last Modified:	19 Feb 2024 04:11
URI:	http://repository.ubaya.ac.id/id/eprint/40861

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