Experimental investigation and empirical modelling of FDM process for compressive strength improvement

Sood, Anil K.; Ohdar, Rajkumar; Mahapatra, Siba Sankar

doi:10.1016/j.jare.2011.05.001

Cited by 474 publications

(287 citation statements)

References 23 publications

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“…Sood et al [80] have developed a semi-empirical methodology using neural network algorithms to develop a model that would predict the compressive strength of FDM built parts. Martinez et al [77] have used a methodology usually applied to fibrous composite materials for the characterization of parts built by FDM using FEA.…”

Section: Extrusion Processesmentioning

confidence: 99%

Additive manufacturing methods and modelling approaches: a critical review

Bikas

Stavropoulos

Chryssolouris

2015

Int J Adv Manuf Technol

1,129

443

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Additive manufacturing is a technology rapidly expanding on a number of industrial sectors. It provides design freedom and environmental/ecological advantages. It transforms essentially design files to fully functional products. However, it is still hampered by low productivity, poor quality and uncertainty of final part mechanical properties. The root cause of undesired effects lies in the control aspects of the process. Optimization is difficult due to limited modelling approaches. Physical phenomena associated with additive manufacturing processes are complex, including melting/ solidification and vaporization, heat and mass transfer etc. The goal of the current study is to map available additive manufacturing methods based on their process mechanisms, review modelling approaches based on modelling methods and identify research gaps. Later sections of the study review implications for closed-loop control of the process.

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Section: Extrusion Processesmentioning

confidence: 99%

Additive manufacturing methods and modelling approaches: a critical review

Bikas

Stavropoulos

Chryssolouris

2015

Int J Adv Manuf Technol

1,129

443

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“…Once the build process is completed, the support material is dissolved and the FDM part can be viewed as a laminate composite structure with vertically stacked layers of bonded fibers or rasters (Sood et al, 2011). Consequently, the mechanical properties of FDM parts are not solely controlled by the build material of the original filament, but are also significantly influenced by a directionally-dependent production process that fabricates components with anisotropic characteristics associated with the inherent layering.…”

Section: Fig 1 Schematic Of the Fdm Processmentioning

confidence: 99%

“…Their results indicate that the tested factors influence the mesostructural configuration of the built part as well as the bonding and distortion within the part. On the basis of this work, Sood et al (2011) further examined the effect of the same five process parameters on the subsequent compressive strength of test specimens. Their work provides insight into the complex dependency of compressive stress on these parameters and develops a statistically validated predictive equation.…”

Section: Fig 1 Schematic Of the Fdm Processmentioning

confidence: 99%

Anisotropic Mechanical Properties of ABS Parts Fabricated by Fused Deposition Modelling

Ziemian¹,

Sharma²,

Ziemian³

2012

Mechanical Engineering

257

219

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“…The newly deposited material cools, solidifies, and bonds with the previous layer, and the eventual FDM component can be viewed as a laminate composite structure with vertically stacked layers of bonded fibers or raster [1]. The mechanical properties of FDM parts are not solely controlled by the build material of the filament but are also significantly affected by a directionally dependent production process that fabricates components with anisotropic characteristics associated with the layering [2].…”

Section: Introductionmentioning

confidence: 99%

The Quantitative Research of Interaction between Key Parameters and the Effects on Mechanical Property in FDM

Wang

2017

Advances in Materials Science and Engineering

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The central composite design (CCD) experiment is conducted to evaluate the interaction between parameters and the effect on mechanical property. The layer thickness, deposition velocity, and air gap are considered as the key factors. Three disparate levels of the parameters are utilized in the experiment. The experimental results suggest that all these parameters can affect the bonding degree of the filaments, which affects the final tensile strength of the specimen. A new numerical model is built to describe the cooling process of the fused filament, which shows a perfect coherence with the practical temperature file of filament. It reveals what the forming mechanism of the bonding between filaments is and how these parameters act on final tensile strength of the specimen of this way from temperature. It is concluded that the parameters are not working alone; in fact they all contribute to determining the mechanical property, while the air gap plays the predominant role in determining the final tensile strength, followed by layer thickness as the next predominant factor, and the effect of deposition velocity is the weakest factor.

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Experimental investigation and empirical modelling of FDM process for compressive strength improvement

Cited by 474 publications

References 23 publications

Additive manufacturing methods and modelling approaches: a critical review

Additive manufacturing methods and modelling approaches: a critical review

Anisotropic Mechanical Properties of ABS Parts Fabricated by Fused Deposition Modelling

The Quantitative Research of Interaction between Key Parameters and the Effects on Mechanical Property in FDM

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