Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Study on driving waveform design process for multi-nozzle piezoelectric printhead in material-jetting 3D printing

Study on driving waveform design process for multi-nozzle piezoelectric printhead in... Material-jetting (MJ) three-dimensional (3D) printing processes are competitive due to their printing resolution and printing speed. Driving waveform design of piezoelectric printhead in MJ would affect droplet formation and performance, but there are very limited studies on it besides patents and know-hows by commercial manufacturers. Therefore, in this research, the waveform design process to efficiently attain suitable parameters for a multi-nozzle piezoelectric printhead was studied. Therefore, this research aims to study the waveform design process to efficiently attain suitable parameters for a multi-nozzle piezoelectric printhead.Design/methodology/approachRicoh’s Gen4L printhead was adopted. A high-speed camera captured pictures of jetted droplets and droplet velocity was calculated. The waveforms included single-, double- and triple-pulse trapezoidal patterns. The effects of parameters were investigated and the suitable ones were determined based on the avoidance of satellite drops and preference of higher droplet velocity.FindingsIn a single-pulse waveform, an increase of fill time (Tf) decreased the droplet velocity. The maximum velocity happened at the same pulse width, the sum of fill time and hold time (Tf + Th). In double- and triple-pulse, a voltage difference (Vd) above zero in the holding stage was adopted except the last pulse to avoid satellite drops. Suitable parameters for the selected resin were obtained and the time-saving design process was established.Research limitations/implicationsBased on the effects of parameters and observed data trends, suggested procedures to determine suitable parameters were proposed with fewer experiments.Practical implicationsThis study has verified the feasibility of suggested design procedures on another resin. The required number of trials was reduced significantly.Originality/valueThis research investigated the process of driving waveform design for the multi-nozzle piezoelectric printhead. The suggested procedures of finding suitable waveform parameters can reduce experimental trials and will be applicable to other MJ 3D printers when new materials are introduced. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Rapid Prototyping Journal Emerald Publishing

Study on driving waveform design process for multi-nozzle piezoelectric printhead in material-jetting 3D printing

Cheng, Yih-Lin; Tseng, Tzu-Wei
Rapid Prototyping Journal , Volume 27 (6): 9 – Jul 15, 2021
Download PDF
9 pages

Loading next page...
 
/lp/emerald-publishing/study-on-driving-waveform-design-process-for-multi-nozzle-OGGcs5KtKd
Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
1355-2546
DOI
10.1108/rpj-05-2019-0120
Publisher site
See Article on Publisher Site

Abstract

Material-jetting (MJ) three-dimensional (3D) printing processes are competitive due to their printing resolution and printing speed. Driving waveform design of piezoelectric printhead in MJ would affect droplet formation and performance, but there are very limited studies on it besides patents and know-hows by commercial manufacturers. Therefore, in this research, the waveform design process to efficiently attain suitable parameters for a multi-nozzle piezoelectric printhead was studied. Therefore, this research aims to study the waveform design process to efficiently attain suitable parameters for a multi-nozzle piezoelectric printhead.Design/methodology/approachRicoh’s Gen4L printhead was adopted. A high-speed camera captured pictures of jetted droplets and droplet velocity was calculated. The waveforms included single-, double- and triple-pulse trapezoidal patterns. The effects of parameters were investigated and the suitable ones were determined based on the avoidance of satellite drops and preference of higher droplet velocity.FindingsIn a single-pulse waveform, an increase of fill time (Tf) decreased the droplet velocity. The maximum velocity happened at the same pulse width, the sum of fill time and hold time (Tf + Th). In double- and triple-pulse, a voltage difference (Vd) above zero in the holding stage was adopted except the last pulse to avoid satellite drops. Suitable parameters for the selected resin were obtained and the time-saving design process was established.Research limitations/implicationsBased on the effects of parameters and observed data trends, suggested procedures to determine suitable parameters were proposed with fewer experiments.Practical implicationsThis study has verified the feasibility of suggested design procedures on another resin. The required number of trials was reduced significantly.Originality/valueThis research investigated the process of driving waveform design for the multi-nozzle piezoelectric printhead. The suggested procedures of finding suitable waveform parameters can reduce experimental trials and will be applicable to other MJ 3D printers when new materials are introduced.

Journal

Rapid Prototyping Journal – Emerald Publishing

Published: Jul 15, 2021

Keywords: 3D printing; Material jetting; Driving waveform; Droplet velocity; Multi-nozzle piezoelectric printhead

References

  • MultiJet printing
  • A new method for significantly reducing drop radius without reducing nozzle radius in drop-on-demand drop production
    Chen, A.U.; Basaran, O.A.
  • Visualization of drop-on-demand inkjet: drop formation and deposition
    Dong, H.; Carr, W.W.; Morris, J.F.
  • Experimental-based feedforward control for a DoD inkjet printhead
    Ezzeldin, M.; van den Bosch, P.P.J.; Weiland, S.
  • Reduction of droplet volume by controlling actuating waveforms in inkjet printing for micro-pattern formation
    Gan, H.Y.; Shan, X.; Eriksson, T.; Lok, B.K.; Lam, Y.C.
  • Satellite formation in drop-on-demand printing of polymer solutions
    Hoath, S.D.; Martin, G.D.; Castrejon-Pita, R.; Hutchings, I.M.
  • Standard terminology for additive manufacturing – general principles – terminology
  • Influence of fluid physical properties on ink-jet printability
    Jang, D.; Kim, D.; Moon, J.
  • Performance improvement of a drop-on-demand inkjet printhead using an optimization-based feedforward control method
    Khalate, A.A.; Bombois, X.; Babuška, R.; Wijsho, H.; Waarsing, R.
  • A waveform design method for a piezo inkjet printhead based on robust feedforward control
    Khalate, A.A.; Bombois, X.; Scorletti, G.; Babuška, R.; Koekebakker, S.; de Zeeuw, W.
  • Speed measurement of ink droplet by using edge detection techniques
    Kwon, K.S.
  • Waveform design methods for piezo inkjet dispensers based on measured meniscus motion
    Kwon, K.S.
  • Experimental analysis of waveform effects on satellite and ligament behavior via in situ measurement of the drop-on-demand drop formation curve and the instantaneous jetting speed curve
    Kwon, K.S.
  • A waveform design method for high-speed inkjet printing based on self-sensing measurement
    Kwon, K.S.; Kim, W.
  • Measurement of inkjet first-drop behavior using a high-speed camera
    Kwon, K.S.; Kim, H.S.; Choi, M.
  • Review of digital printing technologies for electronic materials
    Kwon, K.S.; Rahman, M.K.; Phung, T.H.; Hoath, S.D.; Jeong, S.; Jang Sub Kim, J.S.
  • Control of droplet formation by operating waveform for inks with various viscosities in piezoelectric inkjet printing
    Liu, Y.F.; Tsai, M.H.; Pai, Y.F.; Hwang, W.S.
  • Fundamentals of inkjet technology
    Martin, G.D.; Hutchings, I.M.
  • Observation on satellite behavior by double-pulse driving for high-speed inkjet
    Morita, N.; Hamazaki, T.; Ishiyama, T.
  • New actuation waveform design of DoD inkjet printer for single and multidrop ejection method
    Oktavianty, O.; Kyotani, T.; Haruyama, S.; Kaminishi, K.
  • Actuating voltage waveform optimization of piezoelectric inkjet printhead for suppression of residual vibrations
    Shah, M.A.; Lee, D.G.; Lee, B.Y.; Kim, N.W.; An, H.; Hur, S.
  • Control of droplet formation for low viscosity fluid by double waveforms applied to a piezoelectric inkjet nozzle
    Shin, P.; Sung, J.; Lee, M.H.
  • What is PolyJet technology?
  • Implementation of a photo-curable 3D additive manufacturing technology with coloring gray capability by using piezo ink-jet
    Tsai, M.J.; Cheng, Y.L.; Kuo, Y.L.; Hsiao, S.Y.; Chen, J.W.; Liu, P.H.; Chen, D.H.
  • Optimization of the driving waveform of a piezoelectric inkjet printhead based on a system dynamics model
    Wang, K.; Xi, J.
  • Hydrodynamic response model of a piezoelectric inkjet print-head
    Wang, J.; Huang, J.; Peng, J.
  • The dynamics of the piezo inkjet printhead operation
    Wijshoff, H.