Results 51 to 60 of about 71,317 (158)

Extrusion-based 3D food printing – Materials and machines

International Journal of Bioprinting
To help people with dysphagia increase their food intake, 3D printing can be used to improve the visual appeal of pureed diets. In this review, we have looked at the works done to date on extrusion-based 3D food printing with an emphasis on the edible materials (food inks) and machinery (printers) used.
Tan, Cavin, Toh, Wei Yan, Wong, Gladys, Lin, Li   +3 more
openaire   +3 more sources

Polypropylene for material extrusion: Evidence that flow-enhanced crystallization restricts welding

Additive Manufacturing
We present a comprehensive investigation into the effect that both the crystallization kinetics and the molecular weight of polypropylene feedstock have on the welding properties in material extrusion 3D-printing (MatEx). As sufficient welding at the interfaces between printed layers may be restricted by the onset of crystallization, there is a ...
Baouch, Zakarya, Vezzoli, Riccardo, Koster, Jessy, Costanzo, Andrea, Lanfranchi, Andrea, Cavallo, Dario, McIlroy, Claire   +6 more
openaire   +2 more sources

Pressure control in material extrusion additive manufacturing

Научно-технический вестник информационных технологий, механики и оптики
This paper discusses the effect called undesirable extrusion dynamics that occur during material extrusion printing or fused deposition modeling. This effect is revealed during high acceleration and deceleration of printing head and results in over ...
K. V. Zimenko, M. Ya. Afanasev, M. V. Kolesnikov   +2 more
doaj   +1 more source

Continuous Multi-Material Additive Manufacturing

Research
Slice-based additive manufacturing has been intensively investigated due to its potential in complex 3-dimensional (3D) structure construction across various fields.
Jiawei Sun, Wangjun Xiong, Lidian Zhang, Xuan Guo, Yanlin Song, Lei Wu   +5 more
doaj   +1 more source

Optimization of Feed Rate in FDM Robotic Additive Manufacturing (RAM) for Thin-Walled Structures: System Architecture and Experimental Validation

IEEE Access
This paper presents a model-based feed rate calibration methodology for robotic fused deposition modeling (FDM), developed to improve dimensional accuracy in thin-walled structures.
Martin Csekei, Roman Ruzarovsky, Roman Zelnik, Jan Sido, Jan Milde, Tibor Horak, David Michal   +6 more
doaj   +1 more source

Progressive Cavity Pumps—A Comparison of New Technology for Gradient Bioprinting to Existing Extrusion Methods

Engineering in Life Sciences
Extrusion‐based Bioprinting is a key technology in biofabrication, yet the choice of extrusion method is often limited to established techniques built into most bioprinters, limiting the print fidelity and more demanding applications like printing ...
Franz Moser, Shiva Rahmani, Tomasz Jungst   +2 more
doaj   +1 more source

A study about weak intralayer bonding in extrusion-based additive manufacturing due to resumed extrusion during filling

Polymer Testing
The strength of a printed polymeric component obtained by a material extrusion additive manufacturing technology is highly affected by the bonding quality between the deposited filaments (beads).
Eduardo Burkot Hungria, Felipe Gonçalves Di Nisio, Francisco Cezar Cano, Rafael Voltolini, Neri Volpato   +4 more
doaj   +1 more source

An innovative machine for Fused Deposition Modeling of metals and advanced ceramics

MATEC Web of Conferences, 2016
The design of a new additive manufacturing (AM) system based on extrusion and 3D deposition of a mixture of metal (or advanced ceramic) powder and polymeric binder is described in this paper.
Giberti Hermes, Strano Matteo, Annoni Massimiliano   +2 more
doaj   +1 more source

Enhancing interlayer bonding and fibre dispersion of fibre-reinforced polyether-ether-ketone composites prepared by online mixing extrusion through screw configuration optimisation

Virtual and Physical Prototyping
Material extrusion is currently the primary method for manufacturing fibre-reinforced polymer composites. However, its limitations in extrusion force and material selection restrict its broader application.
Siwei Lu, Yunze Wang, Beining Zhang, Jincang Bai, Chuncheng Yang, Yi Cao, Changning Sun, Dichen Li   +7 more
doaj   +1 more source

锥齿轮温挤压成形工艺研究

Jixie chuandong, 2010
Warm extrusion technology is a process technic of net shape or near net shape.It is used plasticity forming of mechinery parts for car,motorcycle industry gradually,because it has good fluid capability of metal,high forming precision,low cost and ...
于金伟
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