Optimization of Infill Density, Layer Height, and Shell Thickness to Achieve Maximum Bending Strength and Minimum Printing Time of PLA 3D Printed Part

Suteja, The Jaya and Handoko, Rico and Soesanti, Arum (2023) Optimization of Infill Density, Layer Height, and Shell Thickness to Achieve Maximum Bending Strength and Minimum Printing Time of PLA 3D Printed Part. Jurnal Polimesin, 21 (5). pp. 1-5. ISSN 1693-5462; E-ISSN 2549-1199

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Abstract

3D printing has advantages in making customized products, such as leg prosthetics. One of the required properties of 3D-printed leg prosthetics is their resistance to bending stress. Based on the literature review, the influence of the interaction among layer height, infill density, and shell thickness on the bending strength and printing time has not yet been investigated or optimized. This study aims to investigate the effect and optimize the layer height, infill density, and shell thickness to achieve the maximum bending strength and minimum printing time of a Polylactic Acid 3D printed part. This research studies three independent variables: layer height, infill density, and shell thickness. The independent variables of this research are bending strength and printing time. The bending test is conducted according to the ISO 178 standard. The printed specimen is tested using the bending testing machine Tarno Grocki to measure the maximum bending load the specimen can hold. The printing time is measured by using a stopwatch. The Response Surface Method is used as an optimization method to find the value of the maximum bending strength and minimum printing time of the 3D printed part. The optimum responses are achieved using 40 % infill density, 0.3 mm layer height, and 1.6 mm shell thickness. The maximum bending strength is 118. 5129 MPa and the minimum printing time is 11.1867 minutes.

Item Type:	Article
Uncontrolled Keywords:	Optimization, 3D printing, bending strength, printing time
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering > Department of Manufacturing Engineering
Depositing User:	Jaya Suteja 61106
Date Deposited:	19 Mar 2024 03:22
Last Modified:	19 Mar 2024 03:22
URI:	http://repository.ubaya.ac.id/id/eprint/46136

Available Versions of this Item

• Optimization of Infill Density, Layer Height, and Shell Thickness to Achieve Maximum Bending Strength and Minimum Printing Time of PLA 3D Printed Part. (deposited 31 Oct 2023 02:18)
  • Optimization of Infill Density, Layer Height, and Shell Thickness to Achieve Maximum Bending Strength and Minimum Printing Time of PLA 3D Printed Part. (deposited 19 Mar 2024 03:22) [Currently Displayed]

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