Telefon-Nummer: +41 26 429 69 03
Büro: MIC_10_157_iPRINT
Laufend
Rolle: Mitarbeiter
Requérant(e)s: FR - EIA - Institut IPRINT
Financement: CTI; Polytype Converting AG; Swatch Group R&D SA; Form AG; FPT Robotik GmbH
Description du projet : A basic technology for direct-to-shape printing DTS will be developed consisting of robot based highly accurate manipulation of an inkjet printhead, a fluid management system, the generation of complex printing trajectories, raster image processing as well as a multitude of image correction factors.
Forschungsteam innerhalb von HES-SO: Bircher Fritz, Bürgy Olivier, Perritaz Bastien, Compagnon Dimitri, Muller Nicolas, Carrie Natalia, Brodard Patricia, Domae Yoshinori
Partenaires académiques: CSEM; FR - EIA - Institut IPRINT; Valente Anna, SUPSI
Durée du projet: 26.03.2019 - 30.06.2021
Montant global du projet: 2'043'049 CHF
Statut: Laufend
Requérant(e)s: Soutrenon Mathieu, FR - EIA - Institut IPRINT
Financement: CTI; Richemont International SA; EPFL
Description du projet : Micromechanical watch parts are made using a LIGA process. LIGA only produces simple 2.5D single-material structures. We propose a new process, Digital LIGA. It uses precision digital printing with LIGA to realizing complex multimaterial shapes at reduced cost and with higher functionality.
Forschungsteam innerhalb von HES-SO: Bircher Fritz, Soutrenon Mathieu, Balestra Gioele, Lapaire Clovis, Blum Remo, Domae Yoshinori
Partenaires académiques: Soutrenon Mathieu, FR - EIA - Institut IPRINT
Durée du projet: 26.03.2019 - 30.04.2021
Montant global du projet: 816'634 CHF
Abgeschlossen
Requérant(e)s: Bircher Fritz, FR - EIA - Institut IPRINT
Financement: HES-SO Rectorat
Description du projet : Prime de soutien au montage de projets BRIDGE Discovery - projet "eBeam 3D Printing of Polymers for Medical Applications"
Forschungsteam innerhalb von HES-SO: Bircher Fritz, Soutrenon Mathieu, Kuhlmann Martin, Carrie Natalia, Domae Yoshinori
Partenaires académiques: Bircher Fritz, FR - EIA - Institut IPRINT
Durée du projet: 11.12.2018 - 31.12.2019
Statut: Abgeschlossen
2013
Yoshinori Domae
NIP30 from IS&T, 2013
Link zur Publikation
Zusammenfassung:
SII Printek produces printheads characterized by their high productivity. Our ink-jet printheads realized such high productivity with edge shooter structure operating in shear mode until now. Most especially, 508GS model has been popular covering a wide range of ink chemistry and capable of jetting at a high frequency thanks to its isolated channel structure. However, even higher stability at high production rate is demanded in any industrial market, particularly those prints in single pass. Hence we developed a new product which adopted the following techniques to cope with such demands. Firstly, we adopted side shooter structure where a nozzle is located in the center of pressure chamber with openings at both ends to enable ink circulation across. Thereby we can save a large quantity of ink consumption wasted for filling of ink and cleaning of nozzle. Continual ink flow beside the nozzle realizes self- recovery of meniscus as well. Secondly, we adopted our isolated channel structure where discharging and non-discharging channels are alternately grooved and only the latter are actively driven.In this way, electrodes of discharging channels immersed in ink are free from any corrosion and active channels can operate at a high frequency since they are isolated from each other and hence free from crosstalk. Thirdly, we adopted a cantilever structure where the channel walls of the actuator are held rigidly by stiff material at one end and flexibly at the other, from which electrodes extend covering about half height of the wall. This allows us to effectively drive the discharging channel without too much modifying the simple conventional process. Incorporating these three structures together allows us to jet a large volume of drop at a high frequency, but such a large ink flow digitally driven causes big pressure shock occurring at onset and end of a print streak, starving and over-pressuring the printhead in turn. We introduced a dumping structure to supress such a big shock affecting the actuator operation. Thus we could achieve good printing sustainability that can endure any pressure fluctuation, not only due to sudden change in pinting streak but also from outside disturbance. In conclusion, our new inkjet printhead RC512 realized very high productivity and sustainability for industrial printing. Its productivity exceeds our existing product lineup by far, and we are amazed to see a stable discharge is possible with such productivity. We are further developing a new model evolved in the line of this structure aiming at even higher performance.
Errungenschaften
2019
Domae Yoshinori
2019 ; Innovation award
From , Japan Institute of Invention and Innovation
Nov 2019
My patent JP2014049366A ( EP2921300A1 ) which is used for RC1536 inkjet printhead got the award from Japan Institute of Invention and Innovation .
Link zur Errungenschaft
