scholarly journals Accuracy investigation of Fused Deposition Modelling (FDM) processed ABS and ULTRAT parts.

2022 ◽  
Vol 12 (1) ◽  
pp. 0-0
Keyword(s):  
Fused Deposition Modeling ◽  
Geometrical Model ◽  
Fused Deposition Modelling ◽  
Fused Deposition ◽  
Step Procedure ◽  
Dimensional Deviation ◽  
Confirmation Test ◽  
Deposition Modeling ◽  
Good Concordance ◽  
Grey Relational

This paper aims to assess the dimensional deviation of Fused Deposition Modeling (FDM) processed ABS and ULTRAT parts using a new geometrical model which can evaluate three types of dimensional deviation: along the z-axis, along external and internal dimensions, and through diameters. The methodology involves a step-by-step procedure wherein after establishing the experimental plan and manufacturing the specimens, the measurements taken are analyzed via Grey Relational Analysis (GRA) to find out the optimal combination of parameters leading to the minimum deviation in all dimensions of parts for both materials. Statistical techniques such as Analysis of Variance (ANOVA) and Signal to Noise (S/N) ratio were also used. Subsequently, a confirmation test was carried out to validate the results obtained. The findings of the ANOVA and the S/N ratio were in good concordance with those of GRA.

Influence of Part Orientation on the Surface Roughness in the Process of Fused Deposition Modeling

2021 ◽  
Vol 896 ◽  
pp. 29-37
Author(s):  
Ján Milde ◽  
František Jurina ◽  
Jozef Peterka ◽  
Patrik Dobrovszký ◽  
Jakub Hrbál ◽  
...  
Keyword(s):  
Surface Roughness ◽  
3D Printing ◽  
Fused Deposition Modeling ◽  
Orientation Angle ◽  
Acrylonitrile Butadiene Styrene ◽  
Lower Surface ◽  
Geometrical Model ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
Part Orientation

The article focused on the influence of part orientation on the surface roughness of cuboid parts during the process of fabricating by FDM technology. The components, in this case, is simple cuboid part with the dimensions 15 mm x 15mm x 30 mm. A geometrical model is defined that considers the shape of the material filaments after deposition, to define a theoretical roughness profile, for a certain print orientation angle. Five different print orientations in the X-axis of the cuboid part were set: 0°, 30°, 45°, 60°, and 90°. According to previous research in the field of FDM technology by the author, the internal structure (infill) was set at the value of 70%. The method of 3D printing was the Fused Deposition Modeling (FDM) and the material used in this research was thermoplastic ABS (Acrylonitrile butadiene styrene). For each setting, there were five specimens (twenty five prints in total). Prints were fabricated on a Zortrax M200 3D printer. After the 3D printing, the surface “A” was investigated by portable surface roughness tester Mitutoyo SJ-210. Surface roughness in the article is shown in the form of graphs (Fig.7). Results show increase in part roughness with increasing degree of part orientation. When the direction of applied layers on the measured surface was horizontal, significant improvement in surface roughness was observed. Findings in this paper can be taken into consideration when designing parts, as they can contribute in achieving lower surface roughness values.

Development of New Composite Materials for Rapid Tooling Using Fused Deposition Modelling

2014 ◽  
Vol 808 ◽  
pp. 103-108 ◽  
Author(s):  
Harish Kumar Garg ◽  
Rupinder Singh
Keyword(s):  
Rapid Prototyping ◽  
Fused Deposition Modeling ◽  
Research Work ◽  
Rapid Tooling ◽  
Industrial Applications ◽  
Fused Deposition Modelling ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
The Impact ◽  
Feedstock Material

The impact of Rapid Prototyping (RP) on the future engineering and manufacturing will undoubtedly be widespread .It has variety of applications which include the manufacture of prototypes know as rapid prototyping, tool cores and cavities know as rapid tooling and in the manufacture of patterns for a range of casting processes known as rapid casting. In the proposed research work, fused deposition modeling (FDM) technique of RP will be used for development of a tool for direct application using Rapid tooling. The research work includes development of new hybrid feedstock filament of Fe – Nylon6 composite material for the FDM machine which will be suitable for the machine in its existing setup. The feedstock filament will have the desired mechanical thermal and rheological properties as desired for Rapid Tooling applications. The proposed feedstock material will be ferromagnetic in nature and can find wide application in industrial applications.

scholarly journals Biodegradable Poly(Lactic Acid) Nanocomposites for Fused Deposition Modeling 3D Printing

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2567
Author(s):  
Madison Bardot ◽  
Michael D. Schulz
Keyword(s):  
Mechanical Properties ◽  
Lactic Acid ◽  
3D Printing ◽  
Fused Deposition Modeling ◽  
Ecological Crisis ◽  
Poly Lactic Acid ◽  
Fused Deposition Modelling ◽  
Fused Deposition ◽  
Biodegradable Poly ◽  
Deposition Modeling

3D printing by fused deposition modelling (FDM) enables rapid prototyping and fabrication of parts with complex geometries. Unfortunately, most materials suitable for FDM 3D printing are non-degradable, petroleum-based polymers. The current ecological crisis caused by plastic waste has produced great interest in biodegradable materials for many applications, including 3D printing. Poly(lactic acid) (PLA), in particular, has been extensively investigated for FDM applications. However, most biodegradable polymers, including PLA, have insufficient mechanical properties for many applications. One approach to overcoming this challenge is to introduce additives that enhance the mechanical properties of PLA while maintaining FDM 3D printability. This review focuses on PLA-based nanocomposites with cellulose, metal-based nanoparticles, continuous fibers, carbon-based nanoparticles, or other additives. These additives impact both the physical properties and printability of the resulting nanocomposites. We also detail the optimal conditions for using these materials in FDM 3D printing. These approaches demonstrate the promise of developing nanocomposites that are both biodegradable and mechanically robust.

Effect of Printing Parameters on the Mechanical Properties of Parts Fabricated with Open-Source 3D Printers in PLA by Fused Deposition Modeling

2020 ◽  
Vol 22 (4) ◽  
pp. 895-908
Author(s):  
M. Ouhsti ◽  
B. El Haddadi ◽  
S. Belhouideg
Keyword(s):  
Mechanical Properties ◽  
Polylactic Acid ◽  
Fused Deposition Modeling ◽  
Acrylonitrile Butadiene Styrene ◽  
Fused Deposition Modelling ◽  
Fused Deposition ◽  
3D Printers ◽  
Deposition Modeling ◽  
Printed Materials ◽  
Printing Parameters

Abstract3D polymer-based printers have become easily accessible to the public. Usually, the technology used by these 3D printers is Fused Deposition Modelling (FDM). The majority of these 3D printers mainly use acrylonitrile butadiene styrene (ABS) and polylactic acid (PLA) to fabricate 3D objects. In order for the printed parts to be useful for specific applications, the mechanical properties of the printed parts must be known. The aim of this study is to determine the tensile strength and elastic modulus of printed materials in polylactic acid (PLA) according to three important printing parameters such as deposition angle, extruder temperature and printing speed. The central composite design (CCD) was used to reduce the number of tensile test experiments. The obtained results show that the mechanical properties of printed parts depend on printing parameters. Empirical models relating response and process parameters are developed. The analysis of variance (ANOVA) was used to test the validity of models relating response and printing parameters. The optimal printing parameters are determined for the desired mechanical properties.

scholarly journals Influence of Print Orientation on Surface Roughness in Fused Deposition Modeling (FDM) Processes

Materials ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 3834 ◽  
Author(s):  
Irene Buj-Corral ◽  
Alejandro Domínguez-Fernández ◽  
Ramón Durán-Llucià
Keyword(s):  
Surface Roughness ◽  
Fused Deposition Modeling ◽  
Orientation Angle ◽  
Geometrical Model ◽  
Fused Deposition Modelling ◽  
Maximum Height ◽  
Fused Deposition ◽  
Roughness Profile ◽  
Mean Width ◽  
Experimental Values

In the present paper, we address the influence of print orientation angle on surface roughness obtained in lateral walls in fused deposition modelling (FDM) processes. A geometrical model is defined that considers the shape of the filaments after deposition, in order to define a theoretical roughness profile, for a certain print orientation angle. Different angles were considered between 5° and 85°. Simulated arithmetical mean height of the roughness profile, Ra values, were calculated from the simulated profiles. The Ra simulated results were compared to the experimental results, which were carried out with cylindrical PLA (polylactic acid) samples. The simulated Ra values were similar to the experimental values, except for high angles above 80°, where experimental roughness decreased while simulated roughness was still high. Low print orientation angles show regular profiles with rounded peaks and sharp values. At a print orientation angle of 85°, the shape of the profile changes with respect to lower angles, showing a gap between adjacent peaks. At 90°, both simulated and experimental roughness values would be close to zero, because the measurement direction is parallel to the layer orientation. Other roughness parameters were also measured: maximum height of profile, Rz, kurtosis, Rku, skewness, Rsk, and mean width of the profile elements, Rsm. At high print orientation angles, Rz decreases, Rku shifts to positive, Rsk slightly increases, and Rsk decreases, showing the change in the shape of the roughness profiles.

Surface improvement of fused deposition modeling parts by barrel finishing

2015 ◽  
Vol 21 (6) ◽  
pp. 686-696 ◽  
Author(s):  
Alberto Boschetto ◽  
Luana Bottini
Keyword(s):  
Fused Deposition Modeling ◽  
Geometrical Model ◽  
Working Time ◽  
Surface Finishing ◽  
Experimental Investigations ◽  
Post Processing ◽  
Content Type ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
Barrel Finishing

Purpose – The purpose of this paper is to study the integration between this technology and barrel finishing (BF) operation to improve part surface quality. Fused deposition modeling (FDM) processes have limitation in term of accuracy and surface finishing. Hence, post-processing operations are needed. A theoretical and experimental investigations have been carried out. Design/methodology/approach – A geometrical model of the profile under the action of machining is proposed. The model takes into account FDM formulation and allows to predict the surface morphology achievable by BF. The MR needed in the model is obtained by a particular profilometer methodology, based on the alignment of Firestone–Abbot (F–A) curves. The experimental performed on a suitable geometry validated geometrical model. Profilometer and dimensional measurements have been used to assess the output of the coupled technologies in terms of surface roughness and accuracy. Findings – The coupling of FDM and BF has been assessed and characterized in terms of obtained part surfaces and dimension evolution. Deposition angle strongly affects the BF removal speed and alters nominal dimensions of part. The geometric profile model gave interesting information about profile morphology and machining mechanism; moreover, the height prevision allows to estimate BF working time to accomplish part requirements. Research limitations/implications – The prediction of the geometric profile as a function of FDM fabrication parameters is a powerful tool which permits to investigate surface properties such as mechanical coupling or tribological aspects. The coupling of BF and FDM has been assessed and now optimization of this process can be performed just evaluating effects of parameters. Practical implications – This research has been focused to an industrial application, and results can be used in a computer-aided manufacturing. The prevision of surface obtainable by this integration is a tool to find the part optimum orientation to accomplish the drawing requirements. Both the experimental findings and the model can guide operator toward a proper process improvement, thus reducing or eliminating expensive trial and error phase in the post-processing operation of FDM prototypes. Originality/value – In this paper, a novel model has been presented. It allows to know in advance profile morphology achievable by a specific surface of a FDM part after a determined BF working time. A particular application of FA curves gives the MR values.

Process Parameter Optimization of Fused Deposition Modeling for Helical Surfaces Using Grey Relational Analysis

2016 ◽  
Vol 879 ◽  
pp. 861-866 ◽  
Author(s):  
T.G. Anusree ◽  
R.Nair Anjan ◽  
M. Sivadasan ◽  
T.D. John
Keyword(s):  
Tensile Strength ◽  
Parameter Optimization ◽  
Surface Finish ◽  
Fused Deposition Modeling ◽  
Dimensional Accuracy ◽  
Process Parameter ◽  
Fused Deposition ◽  
Relational Analysis ◽  
Deposition Modeling ◽  
Grey Relational

Fused Deposition Modeling (FDM), a fast growing rapid prototyping technology, is a process for developing physical objects by adding fused layers of materials according to a three dimensional CAD geometry. FDM can be used to produce parts with complex geometries. Hence it gains distinct advantages in industries. One of the major drawbacks of FDM is the reduced part quality measured in terms of dimensional accuracy, surface finish and mechanical characteristics. The major share of research literature related to the field of FDM process parameter optimization focuses on flat and circular surfaces, while only a few studies are available on helical surfaces. This paper is based on a close study conducted to understand the effect of four parameters, namely, layer thickness, raster width, print speed and support material density on dimensional accuracy, tensile strength and surface finish of FDM processed helical surfaces. The experiments were designed by taking three levels of each process parameter selected. Optimum parameter level for improving dimensional accuracy, tensile strength and surface finish simultaneously were obtained by Grey Relational Analysis. The main effect plots were also analyzed.

scholarly journals SISTEM KONTROL MESIN FUSED DEPOSITION MODELLING

POROS ◽  
2017 ◽  
Vol 14 (2) ◽  
pp. 107
Author(s):  
Cristian Awi ◽  
Gatot Soeharsono ◽  
Didi Widya Utama
Keyword(s):  
Control System ◽  
Fused Deposition Modeling ◽  
Three Dimensional ◽  
Fused Deposition Modelling ◽  
Three Dimensional Printing ◽  
Engine Control System ◽  
Fused Deposition ◽  
Modeling Process ◽  
Deposition Modeling ◽  
Dimensional Printing

Abstract: Fused deposition modeling is a rapid prototyping process that is very popular. Fused deposition modeling is actually one method of Three -dimensional printing. Fused deposition modeling process , namely by heating the thermoplastic material and then do the printing . Our focus is to learn, the engine control system fused deposition modeling with software arduino 1.6.8 with firmware marlin and other software 3d printer. experimental control system is done by testing the direction of motion and measuring the distance and then test the form . Making fused deposition modeling is intended as a prototype in order to understand the control system and how to innovate in the development of fused deposition modeling. The results of the control system in the form of a fused depositon modeling engine capable of running as expected and can create a physical model. 

scholarly journals Coupling of Fused Deposition Modeling and Inkjet Printing to Produce Drug Loaded 3D Printed Tablets

Pharmaceutics ◽  
2022 ◽  
Vol 14 (1) ◽  
pp. 159
Author(s):  
Laura Andrade Junqueira ◽  
Atabak Ghanizadeh Tabriz ◽  
Francisco José Raposo ◽  
Luana Rocha Carobini ◽  
Urias Pardócimo Vaz ◽  
...  
Keyword(s):  
Inkjet Printing ◽  
Drug Absorption ◽  
Fused Deposition Modeling ◽  
Rapid Development ◽  
Physicochemical Characterization ◽  
Dosage Forms ◽  
Fused Deposition Modelling ◽  
Fused Deposition ◽  
Deposition Modeling ◽  
3D Printed

In the current study, we have coupled Fused Deposition Modelling (FDM) for the fabrication of plain polyvinyl alcohol (PVA) tablets followed by dispensing of minoxidil ethanolic solutions using inkjet printing. The use of a drop-on-solid printing approach facilitates an accurate and reproducible process while it controls the deposition of the drug amounts. For the purpose of the study, the effect of the solvent was investigated and minoxidil ink solutions of ethanol 70% v/v (P70) or absolute ethanol (P100) were applied on the plain PVA tablets. Physicochemical characterization showed that solvent miscibility with the polymer substrate plays a key role and can lead to the formation of drug crystals on the surface or drug absorption in the polymer matrix. The produced minoxidil tablets showed sustained release profiles or initial bursts strongly affected by the solvent grade used for dispensing the required dose on drug loaded 3D printed tablets. This paradigm demonstrates that the coupling of FDM and inkjet printing technologies could be used for rapid development of personalized dosage forms.

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