Variable-Orifice-Size Nozzle for 3D Printing

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27230%2F25%3A10259253" target="_blank" >RIV/61989100:27230/25:10259253 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2504-4494/9/9/308" target="_blank" >https://www.mdpi.com/2504-4494/9/9/308</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/jmmp9090308" target="_blank" >10.3390/jmmp9090308</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Variable-Orifice-Size Nozzle for 3D Printing

Popis výsledku v původním jazyce

This paper presents the general framework of the problem and the basis for the proposed idea, which lies in the design of a new extrusion nozzle for fused-deposition 3D printing, featuring a variable orifice that enables adaptive extrusion control to improve printing properties such as material efficiency, printing speed, and localized control of mechanical properties. The working principle is controlled compression, via a linear actuator, of a silicone sleeve installed inside a metal jacket. Constrained by the metal jacket, the diameter of the silicone sleeve&apos;s through-hole decreases with increasing compression. Three experiments were carried out to verify the functionality of the new nozzle design. The first two explored how the size of the nozzle orifice changes with movement of the linear actuator and the resulting silicone sleeve compression and decompression. In the third experiment, three sample parts were printed to demonstrate how the variable-orifice-size nozzle extruded PLA. The orifice diameter was set to 1.4 mm for the first condition, 0.7 mm for the second condition, and, in the third experiment, the first two conditions were combined. The orifice diameter was set to 1.4 mm for the first half of the object and then abruptly reduced to 0.7 mm for the second half. The prototype variable-orifice-size nozzle system demonstrated the potential of adaptive extrusion control for improved material efficiencies, faster printing times, and localized control of mechanical properties. However, it also revealed hysteresis of the silicone sleeve, a problem that must be addressed.

Název v anglickém jazyce

Variable-Orifice-Size Nozzle for 3D Printing

Popis výsledku anglicky

This paper presents the general framework of the problem and the basis for the proposed idea, which lies in the design of a new extrusion nozzle for fused-deposition 3D printing, featuring a variable orifice that enables adaptive extrusion control to improve printing properties such as material efficiency, printing speed, and localized control of mechanical properties. The working principle is controlled compression, via a linear actuator, of a silicone sleeve installed inside a metal jacket. Constrained by the metal jacket, the diameter of the silicone sleeve&apos;s through-hole decreases with increasing compression. Three experiments were carried out to verify the functionality of the new nozzle design. The first two explored how the size of the nozzle orifice changes with movement of the linear actuator and the resulting silicone sleeve compression and decompression. In the third experiment, three sample parts were printed to demonstrate how the variable-orifice-size nozzle extruded PLA. The orifice diameter was set to 1.4 mm for the first condition, 0.7 mm for the second condition, and, in the third experiment, the first two conditions were combined. The orifice diameter was set to 1.4 mm for the first half of the object and then abruptly reduced to 0.7 mm for the second half. The prototype variable-orifice-size nozzle system demonstrated the potential of adaptive extrusion control for improved material efficiencies, faster printing times, and localized control of mechanical properties. However, it also revealed hysteresis of the silicone sleeve, a problem that must be addressed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21100 - Other engineering and technologies

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Manufacturing and Materials Processing

ISSN

2504-4494

e-ISSN

2504-4494

Svazek periodika

9

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

19

Strana od-do

nestránkováno

Kód UT WoS článku

001580158400001

EID výsledku v databázi Scopus

2-s2.0-105017434402