Analysis of Printing Pattern and Infiltration Percent over the Tensile Properties of PLA Printed Parts by a Fuse Deposition Modelling Printer

9th Thai Society of Mechanical Engineers, International Conference on Mechanical Engineering

Doungkom, P.^1^2 ; Jiamjiroch, K.^1

Faculty of Engineering, Thammasat University, 99 Pahon Yo-Thin RD, Klong Nueng, Klong Luang Pathumthani

12120, Thailand^1

Faculty of Engineering and Technology, Pathuthani University, 140 Tiwanon Rd, Ban Klang, Amphoe Mueang Pathumthani

12000, Thailand^2

关键词: Confidence levels;    Difference directions;    Manufacturing techniques;    Maximum stress;    Operating expense;    Small investments;    Standard equipments;    Tensile testing machines;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/501/1/012028/pdf
DOI  :  10.1088/1757-899X/501/1/012028

来源: IOP

【 摘 要 】

Fuse Deposition Modelling (FDM) 3D printing is nowadays becoming more standard equipment in various fields of study as it can offer both low operating expenses and small investment cost; however, it has been accepted that the printed parts form this kind of printers is not too strong compare with the other Manufacturing technique. This study aims to analyze the effects of both Printing patterns and Infiltration percent on the tensile properties of the specimens obtained by an FDM printer. The specimens have been fabricated with three difference directions that are Horizontal (H), Crosswise (C), and Vertical (V) and within these groups, they are also vary the Infiltration percent at 20% 60% and 100%. After that they had been tested under a Universal tensile testing machine and then these obtained data had been analysed by an Analysis of Variance with 23 level. The result shows that both of Printing Patterns and Infiltration percent can be effect on Tensile strength of the specimens with significant different at 95% confidence level. Beginning with an increase of infiltration percent, it can lead to very strong effect on increasing of the tensile strength. In the case of print patterns, it can be concluded that the maximum stress is C, H and V, respectively. Because of the C pattern printing, tensile testing is a direction that is aligned with the printing of the layer. (For example, like pulling several ropes together)