Optimization of Process Parameters for Fabricating Polylactic Acid Filaments Using Design of Experiments Approach

The amount of wasted polylactic acid (PLA) is increasing because 3D printing services are an increasingly popular offering in many fields. The PLA is widely employed in the fused deposition modeling (FDM) since it is an environmentally friendly polymer. However, failed prototypes or physical models can generate substantial waste. In this study, the feasibility of recycling PLA waste plastic and re-extruded it into new PLA filaments was investigated. An automatic PLA filament extruder was first developed for fabricating new PLA filaments. This paper also discusses the process, challenges, and benefits of recycling PLA waste plastic in an effort to fabricate new PLA filaments more sustainable. It was found that it was possible to fabricate PLA filament using recycled PLA waste plastic. The production cost is only 60% of the commercially available PLA filament. The tensile strength of the developed PLA filament is approximately 1.1 times that of the commercially available PLA filament. The design of experiments approach was employed to investigate the optimal process parameters for fabricating PLA filaments. The most important control factor affecting the diameter of PLA filament is the barrel temperature, followed by recycled material addition ratio, extrusion speed, and cooling distance. The optimal process parameters for fabricating PLA filament with a diameter of 1.7 mm include the barrel temperature of 184 °C, extrusion speed of 490 mm/min, cooling distance of 57.5 mm, and recycled material addition ratio of 40%.

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Impact of fused deposition modeling (FDM) process parameters on strength of built parts using Taguchi’s design of experiments

The International Journal of Advanced Manufacturing Technology ◽

10.1007/s00170-018-3014-6 ◽

2018 ◽

Vol 101 (5-8) ◽

pp. 1215-1226 ◽

Cited By ~ 21

Author(s):

Uzair Khaleeq uz Zaman ◽

Emilien Boesch ◽

Ali Siadat ◽

Mickael Rivette ◽

Aamer Ahmed Baqai

Keyword(s):

Design Of Experiments ◽

Process Parameters ◽

Fused Deposition Modeling ◽

Fused Deposition ◽

Deposition Modeling ◽

Taguchi’S Design Of Experiments

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Effects of Process Parameters on Charge Weld Length during Multi-Hole Porthole Die Extrusion

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.703.141 ◽

2014 ◽

Vol 703 ◽

pp. 141-145 ◽

Cited By ~ 1

Author(s):

Liang Chen ◽

Guo Qun Zhao ◽

Ting Ting Wang

Keyword(s):

Finite Element ◽

Process Parameters ◽

Optimal Process ◽

Extrusion Speed ◽

Billet Temperature ◽

Porthole Die ◽

Element Simulation ◽

Die Extrusion ◽

Charge Weld ◽

Porthole Die Extrusion

The evolution of charge weld during multi-hole porthole die extrusion was studied by means of finite element simulation and Taguchi’s design. Moreover, based on S/N analysis, the optimal process parameters that can reduce the charge weld length was obtained, where the billet diameter is 100 mm, extrusion speed is 2.0 mm/s, tool temperature is 430 °C and billet temperature is 465 °C. The accuracy and effectiveness of such optimal process parameters were also verified. The purpose of the present study is to provide some information about the controlling of charge weld for extrusion engineers.

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Effects of fused deposition modeling process parameters on tensile, dynamic mechanical properties of 3D printed polylactic acid materials

Polymer Testing ◽

10.1016/j.polymertesting.2020.106483 ◽

2020 ◽

Vol 86 ◽

pp. 106483 ◽

Cited By ~ 11

Author(s):

Shuheng Wang ◽

Yongbin Ma ◽

Zichen Deng ◽

Sen Zhang ◽

Jiaxin Cai

Keyword(s):

Mechanical Properties ◽

Polylactic Acid ◽

Process Parameters ◽

Fused Deposition Modeling ◽

Dynamic Mechanical Properties ◽

Dynamic Mechanical ◽

Fused Deposition ◽

Modeling Process ◽

Deposition Modeling ◽

3D Printed

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Effect of the filling percentage on tensile strength in 3D desktop printing for different printing patterns, using a randomized design of experiments

Enfoque UTE ◽

10.29019/enfoque.v10n4.503 ◽

2019 ◽

Vol 10 (4) ◽

pp. 13-27

Author(s):

Juan Carlos Parra Mena ◽

Erling Ricardo Gallardo Vizuete ◽

Erick Damian Torres Peñaloza

Keyword(s):

Tensile Strength ◽

Design Of Experiments ◽

Polylactic Acid ◽

Fused Deposition Modeling ◽

Single Factor ◽

Fused Filament Fabrication ◽

Fused Deposition ◽

Randomized Design ◽

Filling Pattern ◽

Deposition Modeling

The evaluation of the tensile strength of printed parts by means of fused deposition modeling (FDM) or fused filament fabrication (FFF) is essential, since parts whose resistance does not differ significantly depending on the percentage of filling used can be obtained, optimizing the use of the material. The present work details the analysis of polylactic acid (PLA) specimens manufactured according to ASTM D 638 with different percentages for the most commonly used filling patterns (Honeycomb, Octagram, Stars, Archimedean, Hilbert and Triangles). With the help of an analysis of variance and a design of experiments with a single factor, the appropriate percentages for printing parts according to the desired filling pattern are obtained.

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