Results 111 to 120 of about 213,768 (303)

A study on surface cracking in extrusion of aluminium alloy AA2014 [PDF]

, 2004
Surface cracking is generally recognised as one of the main defects occurring during the process of aluminium extrusion, especially in the case of the so called hard aluminium alloys.
Peng, Z., Sheppard, Terry
core   +1 more source

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

Rapid Sintering of Porous Organic Polymer Powders Into Mechanically Strong Monoliths for Efficient CO2 Capture

Advanced Functional Materials, EarlyView.
Spark plasma sintering enables rapid processing of porous organic polymer (POP) from fine powders to a freestanding and mechanically robust monolith. The sintering process retains the CO2 adsorption capacity and CO2/N2 selectivity, making the monolith more suitable as a solid sorbent for practical carbon capture applications.
Duan Li, Tianhui Shi, Sirui Ran, Lei Zeng, Chao Xu   +4 more
wiley   +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

Expansion of the whole wheat flour extrusion [PDF]

, 2008
A new model framework is proposed to describe the expansion of extrudates with extruder operating conditions based on dimensional analysis principle. The Buckingham pi dimensional analysis method is applied to form the basic structure of the model from ...
Cheng, Hongyuan, Friis, Alan
core  

Impact of mechanical and microstructural properties of potato puree-food additive complexes on extrusion-based 3D printing [PDF]

, 2018
This paper studies the applicability of extrusion-based 3D printing for constructing novel shapes from potato puree and the effects of four additives (agar, alginate, lecithin, and glycerol) added separately at three concentrations (0.5, 1, 1.5%) on the ...
Dankar, Iman, El Omar, Fawaz, Haddarah, Amira, Pujolà Cunill, Montserrat, Sepulcre Sánchez, Francesc   +4 more
core   +2 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

Unusual Swelling Behavior of Hydrogels Modified with Spiropyran as Appendage or Crosslinker

Advanced Functional Materials, EarlyView.
Not so innocent after all—spiropyran crosslinkers in methylenebisacrylamide‐crosslinked poly(acrylamide‐co‐acrylic acid) hydrogels increase crosslinking density, but also, counterintuitively, increase swelling. Charge complexation, cooperative chemo‐mechanical effects, and aggregation may explain these observations.
Michael M. Lerch, Ankita Shastri, Thomas B. H. Schroeder, Amos Meeks, Shucong Li, Anna V. Shneidman, Michael Aizenberg, Joanna Aizenberg   +7 more
wiley   +1 more source

Thermal exchange effects on steel thixoforming processes [PDF]

, 2010
Steel thixoforging is an innovative semi-solid forming process. It allows the manufacturing of complex parts and minimises the forming load. This work aims to identify and characterise the main feature zones of a thixoforging part.
BECKER, Eric, BIGOT, Régis, LANGLOIS, Laurent   +2 more
core   +6 more sources

3D Digital Light Processing of Redox‐Active Polymers for Electrochemical Applications

Advanced Functional Materials, EarlyView.
3D printing of electrochemically switchable conducting polymers is achieved by Digital Light Processing of redox‐active carbazole‐based polymer materials. Complex 2D and 3D architectures including dot arrays and pyramids clearly show the potential for novel 3D switchable electrochemical devices for sensors, electrochromic displays as well as 3D printed
Christian Delavier, Svenja Bechtold, Marcus H. Dodds, Eva Blasco, Sabine Ludwigs   +4 more
wiley   +1 more source