Workpiece and Machine Design in Additive Manufacturing for Multi-Axis Fused Deposition Modeling

Wulle, Frederik; Coupek, Daniel; Schäffner, Florian; Verl, Alexander; Oberhofer, Felix; Maier, Thomas

doi:10.1016/j.procir.2017.01.046

Cited by 63 publications

(27 citation statements)

References 20 publications

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“…To design and develop a machine that implements PBF technology, it is necessary to set-up proper and efficient technical solutions to transform technological needs in an industrial machine as schematically represented in Figure 8. In literature, papers concerning the design of industrial machines aren't so widespread, probably for confidentiality reasons, while it is possible to find some works concerning development of prototypes even characterized by new solutions at the aim to improve the production process [16][17][18][19][20], or machines designed and built mainly for research purposes [21], or guidelines for the design of a proper plant layout [22].…”

Section: Machine Industrial Designmentioning

confidence: 99%

Driving Technologies for the Design of Additive Manufacturing Systems

Righettini

Strada²

2021

HighTech. Innov. J.

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The Additive Manufacturing (AM) technology, belonging to the most comprehensive Net Shape Forming family, has in recent years a growing trend due to the increasing quality of the built product. These results may open the application of the AM to the industrial field, moving the application from laboratories to the plant floor. This step requires machines capable of executing the technology process of AM with the requirements of the industrial environment, concerning as example the production speed, reliability, robustness, and process stability. The design of such type of machinery requires a systematic and multidisciplinary approach for reaching these industrial targets. Indeed the AM process involves several design technological issues, like temperature control of the material to be processed, characteristics of the energy source for material transition, control of the power transferred to the material, scanning system’s head control, 3D model’s layer definition, generation of the laser point’s trajectories. The final product’s quality strongly depends on all these aspects synergically linked each other, as well as on the technical solutions to realize them. The paper presents an interdisciplinary approach to the design of machines for AM, based on the Powder Bed Fusion process, and targeted to the industrial field. The technological platforms discussed in the paper are essential for such type of machines. The strategy proposed constitutes a base reference point for the definition of a methodological approach to the design of AM machinery. Doi: 10.28991/HIJ-2021-02-01-03 Full Text: PDF

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Section: Machine Industrial Designmentioning

confidence: 99%

Driving Technologies for the Design of Additive Manufacturing Systems

Righettini

Strada²

2021

HighTech. Innov. J.

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“…From the first and second equations of motion, one calculates the time required to change the velocity (start to travel and/or travel to end) and consecutively the length of path covered during the acceleration phase(s). 6 If the path length traveled during the acceleration phase is inferior to the total path length, the remaining path is covered at constant velocity (travel velocity).…”

Section: Velocity Profilementioning

confidence: 99%

FIBR3DEmul—an open-access simulation solution for 3D printing processes of FDM machines with 3+ actuated axes

Faria

Fonseca

Bicho

2020

Int J Adv Manuf Technol

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This paper introduces a virtual emulator software for additive manufacturing (AM) processes based on filament deposition, the FIBR3DEmul. The presented software is capable of reading and parsing a G-Code file (ISO/DIN 66025), and realistically emulating a custom-designed 5-axis printer or a standard 3-axis Cartesian printer. The FIBR3DEmul was designed and implemented in two separate applications for reusability and scalability. First, the G-Code Interpreter is responsible for parsing the g-code script, controlling the flow of its execution, and notifying the user about detected printer-printer or printerworkpiece collisions. The second application involves the robotics simulator tool V-Rep. A custom plugin was implemented to mediate the communication with the Interpreter application, to generate the tool trajectories, to emulate the extrusion process, and to handle motion execution and collision detection. The process of designing and implementing a custom-printer control and motion execution in these two software is described. The performance of the virtual 5-axis printer was compared with the real machine in terms of position and velocity profiles. Results show a tight match between virtual and real printergenerated plots. The presented solution can also be extrapolated to CNC machines or WHASPs. The FIBR3DEmul source code is publicly available.

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“…However, the layer-based nature of most AM processes exhibits several innate drawbacks. These include long manufacturing times as a result of the time-consuming process of depositing successive layers [3]; mechanical anisotropy resulting from weaknesses in the bonding of material between successive layers [4]; and the need for support structures, which further increases manufacturing time [5] and results in increased material use and cost [6], [7]. These drawbacks, among others, limit the application of polymer AM for the production of end-use parts in a manufacturing environment [8], [9].…”

Section: Introductionmentioning

confidence: 99%