The effect of process parameters on tensile behavior of 3D printed flexible parts of ethylene vinyl acetate (EVA)

Kumar, Narendra; Jain, Prashant K.; Tandon, Puneet; Pandey, Pulak M.

doi:10.1016/j.jmapro.2018.08.013

Cited by 86 publications

(57 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The effect of these defects can be significant on the mechanical performance that costs up one third of the performance of the feedstock material [6]. Several studies tackled this problem by adjusting key process parameters of FDM such as the part orientation, layer thickness [7], printing speed, and printing temperature [8,9,10,11]. This last parameter is known to enhance the cohesive structure of the 3D printed material by lowering the effect of necking and reducing the weight of the porosity effect on the mechanical performance [12,13].…”

Section: Introductionmentioning

confidence: 99%

“…This last parameter is known to enhance the cohesive structure of the 3D printed material by lowering the effect of necking and reducing the weight of the porosity effect on the mechanical performance [12,13]. Examples of studies that looked into the matter can be found in the literature for materials such as ethylene vinyl acetate [9], polylactic acid (PLA) [14], and acrylonitrile butadiene styrene (ABS) [15].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Printability and Tensile Performance of 3D Printed Polyethylene Terephthalate Glycol Using Fused Deposition Modelling

2019

View full text Add to dashboard Cite

Polyethylene terephthalate glycol (PETG) is a thermoplastic formed by polyethylene terephthalate (PET) and ethylene glycol and known for his high impact resistance and ductility. The printability of PETG for fused deposition modelling (FDM) is studied by monitoring the filament temperature using an infra-red camera. The microstructural arrangement of 3D printed PETG is analysed by means of X-ray micro-tomography and tensile performance is investigated in a wide range of printing temperatures from 210 °C to 255 °C. A finite element model is implemented based on 3D microstructure of the printed material to reveal the deformation mechanisms and the role of the microstructural defects on the mechanical performance. The results show that PETG can be printed within a limited range of printing temperatures. The results suggest a significant loss of the mechanical performance due to the FDM processing and particularly a substantial reduction of the elongation at break is observed. The loss of this property is explained by the inhomogeneous deformation of the PETG filament. X-ray micro-tomography results reveal a limited amount of process-induced porosity, which only extends through the sample thickness. The FE predictions point out the combination of local shearing and inhomogeneous stretching that are correlated to the filament arrangement within the plane of construction.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Printability and Tensile Performance of 3D Printed Polyethylene Terephthalate Glycol Using Fused Deposition Modelling

2019

View full text Add to dashboard Cite

show abstract

“…come with single material filament spools. The single materials presented in the literature include either commercial 3D printing filaments [104] or research-based filaments prepared from polymers by extrusion or injection molding [105]. However, it is noticed that the commercial filaments are used in the majority of research as shown in Figure 3.…”

Section: Fff Materialsmentioning

confidence: 99%

Effect of Material and Process Specific Factors on the Strength of Printed Parts in Fused Filament Fabrication: A Review of Recent Developments

et al. 2019

View full text Add to dashboard Cite

Additive manufacturing (AM) is rapidly evolving as the most comprehensive tool to manufacture products ranging from prototypes to various end-user applications. Fused filament fabrication (FFF) is the most widely used AM technique due to its ability to manufacture complex and relatively high strength parts from many low-cost materials. Generally, the high strength of the printed parts in FFF is attributed to the research in materials and respective process factors (process variables, physical setup, and ambient temperature). However, these factors have not been rigorously reviewed for analyzing their effects on the strength and ductility of different classes of materials. This review systematically elaborates the relationship between materials and the corresponding process factors. The main focus is on the strength and ductility. A hierarchical approach is used to analyze the materials, process parameters, and void control before identifying existing research gaps and future research directions.

show abstract

“…In the FFF process, the polymer filament is melted in a heated nozzle and deposited in a building bed [7]. The objects geometry is created by the deposition of the melted material (Figure 1) as the head section moves above the printing surface in the XY plane [8] PEEK is a promising biomaterial that could potentially be used to replace traditional metal or ceramic parts for biomedical and aerospace applications.…”

Section: Introductionmentioning

confidence: 99%

Effect of infill pattern in Fused Filament Fabrication (FFF) 3D Printing on materials performance

Cabreira

Santana

2020

Matéria (Rio J.)

View full text Add to dashboard Cite

Fused Filament Fabrication (FFF) is an Additive Manufacturing process popularized in the last decade due to its easiness of use and lower costs. However, despite its increasing popularity, the process itself has several gaps in knowledge, hindering further uses on more advanced objects. Also, the freedom of design allows significant variances in the printed parts, many influencing production and mechanical properties. This work studies the influences of the infill patterns in the mechanical response of printed parts. Using poly (lactic acid) (PLA), a widely used polymer in FFF process, the mechanical responses of parts printed with different infill patterns were analyzed. Rectilinear, Honeycomb, Triangle and Grid patterns were tested on impact resistance and tensile strength. Additionally, samples masses were measured and compared to the mechanical response. Results shown significant differences in the on tested properties. Tensile strength varied from 2.4 to 1.1 MPa, and impact resistance from 3.8 to 1.5 kJ/m² Also, measured mass was found to be significantly higher on the Honeycomb pattern. Considering mechanical response from both tensile and impact tests along with printed mass, Rectilinear pattern can be considered the most advantageous from the economic point of view.

show abstract

The effect of process parameters on tensile behavior of 3D printed flexible parts of ethylene vinyl acetate (EVA)

Cited by 86 publications

References 23 publications

Printability and Tensile Performance of 3D Printed Polyethylene Terephthalate Glycol Using Fused Deposition Modelling

Printability and Tensile Performance of 3D Printed Polyethylene Terephthalate Glycol Using Fused Deposition Modelling

Effect of Material and Process Specific Factors on the Strength of Printed Parts in Fused Filament Fabrication: A Review of Recent Developments

Effect of infill pattern in Fused Filament Fabrication (FFF) 3D Printing on materials performance

Contact Info

Product

Resources

About