Continuous toolpath planning in a graphical framework for sparse infill additive manufacturing

Gupta, Prashant; Krishnamoorthy, Bala; Dreifus, Gregory

doi:10.1016/j.cad.2020.102880

Cited by 28 publications

(11 citation statements)

References 16 publications

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“…The porous structure of the infill was designed based on the local volume of the material. The performance of the bone models and their discrete formulation were compared to honeycomb structures [ 7 , 8 ]. Similar research on mechanical properties was conducted in 3D-printed PLA materials in accordance with the ASTM D638 Type IV Standard, with the yield strength of the specimen tested using a universal testing machine and validated using finite element analysis using ANSYS software [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Tensile Properties of Different Infill Pattern Structures of 3D-Printed PLA Polymers: Analysis and Validation Using Finite Element Analysis in ANSYS

Ganeshkumar¹,

Kumar

Magarajan

et al. 2022

Materials

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The advancement of 3D-printing technology has ushered in a new era in the production of machine components, building materials, prototypes, and so on. In 3D-printing techniques, the infill reduces the amount of material used, thereby reducing the printing time and sustaining the aesthetics of the products. Infill patterns play a significant role in the property of the material. In this research, the mechanical properties of specimens are investigated for gyroid, rhombile, circular, truncated octahedron, and honeycomb infill structures (hexagonal). Additionally, the tensile properties of PLA 3D-printed objects concerning their infill pattern are demonstrated. The specimens were prepared with various infill patterns to determine the tensile properties. The fracture of the specimen was simulated and the maximum yield strengths for different infill structures and infill densities were determined. The results show the hexagonal pattern of infill holds remarkable mechanical properties compared with the other infill structures. Through the variation of infill density, the desired tensile strength of PLA can be obtained based on the applications and the optimal weight of the printed parts.

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Section: Introductionmentioning

confidence: 99%

Investigation of Tensile Properties of Different Infill Pattern Structures of 3D-Printed PLA Polymers: Analysis and Validation Using Finite Element Analysis in ANSYS

Ganeshkumar¹,

Kumar

Magarajan

et al. 2022

Materials

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“…Flores et al (2019) developed a new tool path generation technique for the Laser-based metal deposition system. They implemented this tool path generation strategies (Gupta and Krishnamoorthy, 2019) for the translation in Z-axis to deposit thin walled structures. There are two different ways of the adaptive slicing strategies such as conventional adaptive slicing and regionbased (i.e.…”

Section: Introductionmentioning

confidence: 99%

Development of a deposition framework for implementation of a region-based adaptive slicing strategy in arc-based metal additive manufacturing

Gokhale

Kala

2021

RPJ

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Purpose This study aims to develop and demonstrate a deposition framework for the implementation of a region-based adaptive slicing strategy for the Tungsten Inert Gas (TIG) welding-based additive manufacturing system. The present study demonstrates a deposition framework for implementing a novel region-based adaptive slicing strategy termed as Fast Interior and Accurate Exterior with Constant Layer Height (FIAECLH). Design/methodology/approach The mentioned framework has been developed by performing experiments using the design of experiments and analyzing the experimental data. Analysis results have been used to obtain the mathematical function to integrate customization in the process. The paper, in the end, demonstrates the FIAECLH framework for implementing region-based adaptive slicing strategy on the hardware level. Findings The study showcase a new way of implementing the region-based adaptive slicing strategy to arc-based metal additive manufacturing. The study articulating a new strategy for its implementation in all types of wire and arc additive manufacturing processes. Originality/value Wire-arc-based technology has the potential to deliver cost-effective solutions for metal additive manufacturing. The research on arc welding-based processes is being carried out in different dimensions. To deposit parts with complex geometry and better dimensional accuracy implementation of a novel region-based adaptive slicing strategy for the arc-based additive manufacturing process is an essential task. The successful implementation of an adaptive slicing strategy would ease the fabrication of complex geometry in less time. This paper accomplishes this need of implementing a region-based adaptive slicing strategy as no experimental investigation has been reported for the TIG-based additive manufacturing process.

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“…Similar voxel model-based hollowing methods can also be found in [9][10][11][12]. Gupta and Krishnamoorthy [13] developed a framework that can guarantee a sparse infill pattern according to a given arbitrary polygonal mesh; in addition, it guarantees the existence of a single, continuous and crossover-free tool path in each layer by using a novel Euler transformation. Additionally, there are also some infill structure generation methods based on topology optimization [14][15][16] with selfsupporting as a constraint.…”

Section: Introductionmentioning

confidence: 99%

Multi-Axis Support-Free Printing of Freeform Parts with Lattice Infill Structures

Tang

et al. 2021

Computer-Aided Design

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Continuous toolpath planning in a graphical framework for sparse infill additive manufacturing

Cited by 28 publications

References 16 publications

Investigation of Tensile Properties of Different Infill Pattern Structures of 3D-Printed PLA Polymers: Analysis and Validation Using Finite Element Analysis in ANSYS

Investigation of Tensile Properties of Different Infill Pattern Structures of 3D-Printed PLA Polymers: Analysis and Validation Using Finite Element Analysis in ANSYS

Development of a deposition framework for implementation of a region-based adaptive slicing strategy in arc-based metal additive manufacturing

Multi-Axis Support-Free Printing of Freeform Parts with Lattice Infill Structures

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