Effect of Printing Parameters on the Tensile Properties of 3D-Printed Polylactic Acid (PLA) Based on Fused Deposition Modeling.

Ming-Hsien Hsueh,Yu-Shan Zeng,Cheng-Feng Chung,Wen-Chen Huang,Chia-Hsin Hsieh,Shi-Hao Wang,Chao-Jung Lai,Chieh-Yu Pan

doi:10.3390/polym13142387

Abstract

In order to optimize the efficiency of the Fused deposition modeling (FDM) process, this study used polylactic acid (PLA) material under different parameters (the printing angle and the raster angle) to fabricate specimens and to explore its tensile properties. The effect of the ultraviolet (UV) curing process on PLA materials was also investigated. The results showed that the printing and raster angles have a high impact on the tensile properties of PLA materials. The UV curing process enhanced the brittleness and reduced the elongation of PLA material. Different effects were observed on tensile strength and modulus of specimens printed with different parameters after UV curing. The above results will be a great help for researchers who are working to achieve sustainability of PLA materials and FDM technology.

Highlights

Three-dimensional printing technology, known as additive manufacturing (AM), is the process of building objects with complicated and lightweight structures in three dimensions
Four types of specimens were produced, and four different printing angles were used on the X, Y, Z orientations of specimens and five different raster angles were used on the flat-type specimens
The results indicate that the printing angle has a large impact on the mechanical properties of the Fused deposition modeling (FDM) printed part, and that the X90◦/Z0◦ specimens among three types of specimens and the 45/−45◦ of flat-type specimens have the strongest tensile properties

Summary

Introduction

Three-dimensional printing technology, known as additive manufacturing (AM), is the process of building objects with complicated and lightweight structures in three dimensions. This technique has grown swiftly over the past decade and is widely applied in different fields, including engineering, construction, medicine, aerospace, etc. In the field of traditional manufacturing, producers require a longer circle time and incur higher costs to design and build a mold before starting to manufacture. Many printing parameters of an FDM 3D printer and the UV curing process can be adjusted which will significantly affect the mechanical properties and manufacturing efficiency of the printed product. The developed method can be applied to optimize the mechanical properties of an FDM-printed composite

Literature Review

Experimental

XOrOierinetnatatitoionn X Orientation

Conclusions