Optimization of tool-path generation for material extrusion-based additive manufacturing technology

Jin, Yuan; He, Yong; Fu, Jianzhong; Gan, Wenfeng; Lin, Zhiwei

doi:10.1016/j.addma.2014.08.004

Cited by 106 publications

(41 citation statements)

References 12 publications

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“…The first category of studies focuses on tool path planning and manufacturing parameters such as layer thickness, contour and infill raster width, and raster angle. Agarwala et al qualitatively assessed the structural quality of fused deposition parts based on contour and infill raster patterns [13].Jin et al implemented an optimization technique to increase machining efficiency and improve fabrication precision [14]. Kulkarni and Dutta estimated resulting part stiffness based on the tool-path pattern [15].…”

Section: Introductionmentioning

confidence: 99%

Quantifying effects of material extrusion additive manufacturing process on mechanical properties of lattice structures using as-fabricated voxel modeling

Park

Rosen

2016

Additive Manufacturing

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During additive manufacturing processes, part geometry is approximated because the layer by layer deposition procedure can yield stair-step irregularities between layers. Moreover, since finite-sized filaments are deposited in the material extrusion process, air gaps are generated among the filaments. These lead to geometrical errors in additively manufacturing parts and degradation of the parts' mechanical properties, such as elastic modulus and strength, based on slicing and material deposition strategies. Geometric errors that arise during the manufacturing procedure have a particularly significant impact on fabricated lattice structures, which consist of a network of small struts, because they have large bounding surfaces that must be approximated during fabrication. In addition, since the struts in lattice structures are generally small, voids among filaments affect the structures' mechanical properties significantly even if they are small. In order to avoid property degradation it is necessary to consider these phenomena during lattice structure design. In this paper, an as-fabricated modeling approach for a material extrusion process is proposed, for use in modeling and assessing the effects of geometric degradation on additively fabricated lattice structures. The approach implements a voxel based modeling technique to consider stair steps and deposition paths at each layer. Using the proposed method, numerical models for evaluating mechanical properties are generated. Estimated mechanical properties using the as-fabricated voxel modeling approach are compared with experimental results. The effects of the stair step and deposition path phenomena on mechanical properties are quantified and demonstrate good correspondence with experiments, particularly for elastic modulus.

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Section: Introductionmentioning

confidence: 99%

Quantifying effects of material extrusion additive manufacturing process on mechanical properties of lattice structures using as-fabricated voxel modeling

Park

Rosen

2016

Additive Manufacturing

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“…Jin et al [17] propose a method to optimise the path generation of ex-trusion based AM, e.g., FDM. The optimisation goals for this approach are machine utilisation and object precision.…”

Section: Optimisationmentioning

confidence: 99%

Additive Manufacturing, Cloud-Based 3D Printing and Associated Services—Overview

Baumann

Roller

2017

JMMP

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Cloud Manufacturing (CM) is the concept of using manufacturing resources in a service-oriented way over the Internet. Recent developments in Additive Manufacturing (AM) are making it possible to utilise resources ad-hoc as replacements for traditional manufacturing resources in case of spontaneous problems in the established manufacturing processes. In order to be of use in these scenarios, the AM resources must adhere to a strict principle of transparency and service composition in adherence to the Cloud Computing (CC) paradigm. With this review, we provide an overview of CM, AM and relevant domains as well as presenting the historical development of scientific research in these fields, from 2002 to 2016. Part of this work is also a meta-review on the domain to further detail its development and structure.

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“…The relationship between mechanical properties and fracture morphology of ABS material and FDM process parameters has been studied in the last years by several research groups [8]- [19]. Printed ABS standard tensile specimens (ASTM D638, Type V) demonstrate a "ductile" fracture morphology [17], [20]- [23].…”

Section: Introductionmentioning

confidence: 99%

Crack Propagation in Flexural Testing of Additive Manufactured Acrylonitrile Butadiene Styrene

Rosenthal¹,

Stern²,

Treivish³

et al. 2019

ANN_UDJG_AWET

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Fused Deposition Modelling (FDM) is one of the most important Additive Manufacturing (AM) technologies. This is a technology suitable for various engineering applications and currently used with many types of thermoplastic materials including Acrylonitrile Butadiene Styrene (ABS). AM-FDM printed ABS possesses an inherent capacity for property modifications as a function of printing parameters. The main goal of the present ongoing research project is to estimate the strength of the AM-FDM printed ABS for varying printing process parameters. In the present study, the mechanical and structural characterizations of AM-FDM ABS were evaluated by light microscopy and mechanical testing. Three-point bend flexural test results revealed the mechanical properties as well as the fracture behaviour according to the dimensions and printing strategies of the build-on specimens. An innovative transmitted-light microscopy experimental method was developed and utilized to investigate the crack propagation behaviour under bending.

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Optimization of tool-path generation for material extrusion-based additive manufacturing technology

Cited by 106 publications

References 12 publications

Quantifying effects of material extrusion additive manufacturing process on mechanical properties of lattice structures using as-fabricated voxel modeling

Quantifying effects of material extrusion additive manufacturing process on mechanical properties of lattice structures using as-fabricated voxel modeling

Additive Manufacturing, Cloud-Based 3D Printing and Associated Services—Overview

Crack Propagation in Flexural Testing of Additive Manufactured Acrylonitrile Butadiene Styrene

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