Stress-based tool-path planning methodology for fused filament fabrication

Xia, Lingwei; Lin, Sen; Ma, Guowei

doi:10.1016/j.addma.2019.101020

Cited by 26 publications

(17 citation statements)

References 27 publications

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“…From an overall point of view, the design principles of specimens, along with the velocities and trajectories involved in the process, have been investigated [ 68 , 69 , 70 , 71 ]. As an emergent technology, there have been many studies on and innovations for these processes [ 10 , 60 , 72 , 73 ].…”

Section: Introductionmentioning

confidence: 99%

Influence of Infill Pattern on Mechanical Behavior of Polymeric and Composites Specimens Manufactured Using Fused Filament Fabrication Technology

2021

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This paper presents the results of a comparative evaluation of the tensile strength behaviors of parts obtained by additive manufacturing using fused filament fabrication (FFF) technology. The study investigated the influences of the deposition printing parameters for both polymers and fiber-reinforced polymers. Polymeric materials that are widely used in FFF were selected, including acrylonitrile butadiene styrene (ABS), polylactic acid (PLA), and nylon. Carbon and glass continuous fibers were used to reinforce the nylon matrix in composite materials. The study utilized two manufacturing methods. Polymers were manufactured using an Ultimaker 2 Extended+ device and the fiber-reinforced polymer specimens were obtained using a Markforged Mark Two printer. The entire set of specimens was eventually subjected to destructive monoaxial tensile tests to measure their responses. The main goal of this study was to estimate the effect of the different infill patterns applied (zig-zag, concentric, and four different orientations lines) on the mechanical properties of pure thermoplastic materials and reinforced polymers. Results show a spectacular increase in the tensile stress at break, which for polymers reaches an average value of 27.53 MPa compared to 94.51 MPa in the case of composites (increase of 70.87%). A similar increase occurs in the case of tensile stress at yield with values of 31.87 MPa and 105.98 MPa, respectively, which represents an increase of 69.93%. The influence of the infill of the fiber is decisive, reaching, in the 0-0 arrangement, mean values of 220.18 MPa for tensile stress at break and 198.26 MPa for tensile stress at yield.

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Section: Introductionmentioning

confidence: 99%

Influence of Infill Pattern on Mechanical Behavior of Polymeric and Composites Specimens Manufactured Using Fused Filament Fabrication Technology

2021

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“…The final test in their study showed a great improvement on the structural integrity of their specimens. A similar study was conducted by Xia et al [13] to define the interior of the parts implicitly by utilizing the orientations of the maximum principal stress components. Li et al [14] followed a similar approach.…”

Section: B Implicit Modeling and Slicingmentioning

confidence: 94%

Toward a Simple Design and Manufacturing Pipeline for Additive Manufacturing

et al. 2021

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A novel design and manufacturing pipeline for Additive Manufacturing is presented. The architecture of the pipeline is motivated by the observation that the conventional pipeline is unnecessarily complex. Most of the time, only a small set of programming steps suffices for 3D design and manufacture. In particular, the proposed method requires no complex hardware or software, and it generates the geometric data on the fly. This is demonstrated using a simplified evaluation of general volumetric sweeps. The method side-steps many of the problems of the conventional Additive Manufacturing pipeline. Several scripts are provided that illustrate the capabilities and the advantages of the proposed approach. These scripts are processed on a single-board computer and the parts are manufactured on a Fused Filament Fabrication type of 3D printer.

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“…For most cases, we can achieve the optimal results rather than approximated ones. Many efforts have been made to optimize the toolpath in terms of continuity, filling rates, and mechanical properties [Xia et al 2020;Zhai and Chen 2019;Zhao et al 2016]. [Hornus et al 2020] propose a variable-width contouring technique that further optimizes the filling density.…”

Section: Related Workmentioning

confidence: 99%