Development of a high-precision viscous chocolate printer utilizing electrostatic inkjet printing

2018 ◽  
Vol 42 (1) ◽  
pp. e12934 ◽  
Author(s):  
Yuya Suzuki ◽  
Kensuke Takagishi ◽  
Shinjiro Umezu

2021 ◽  
Author(s):  
Dongjin Xie ◽  
Qiuyi Luo ◽  
Shen Zhou ◽  
Mei Zu ◽  
Haifeng Cheng

Inkjet printing of functional material has shown a wide range of application in advertzing, OLED display, printed electronics and other specialized utilities that require high-precision, mask-free, direct-writing deposition technique. Nevertheless,...



2020 ◽  
Vol 12 (9) ◽  
pp. 10867-10874 ◽  
Author(s):  
Yue Wu ◽  
Jie Ren ◽  
Shufen Zhang ◽  
Suli Wu


2012 ◽  
Vol 70 (18) ◽  
pp. 1889 ◽  
Author(s):  
Minxuan Kuang ◽  
Jingxia Wang ◽  
Libin Wang ◽  
Yanlin Song


Micromachines ◽  
2021 ◽  
Vol 13 (1) ◽  
pp. 57
Author(s):  
Federico Bertolucci ◽  
Nicolò Berdozzi ◽  
Lara Rebaioli ◽  
Trunal Patil ◽  
Rocco Vertechy ◽  
...  

Drop on demand (DoD) inkjet printing is a high precision, non-contact, and maskless additive manufacturing technique employed in producing high-precision micrometer-scaled geometries allowing free design manufacturing for flexible devices and printed electronics. A lot of studies exist regarding the ink droplet delivery from the nozzle to the substrate and the jet fluid dynamics, but the literature lacks systematic approaches dealing with the relationship between process parameters and geometrical outcome. This study investigates the influence of the main printing parameters (namely, the spacing between subsequent drops deposited on the substrate, the printing speed, and the nozzle temperature) on the accuracy of a representative geometry consisting of two interdigitated comb-shape electrodes. The study objective was achieved thanks to a proper experimental campaign developed according to Design of Experiments (DoE) methodology. The printing process performance was evaluated by suitable geometrical quantities extracted from the acquired images of the printed samples using a MATLAB algorithm. A drop spacing of 140 µm and 170 µm on the two main directions of the printing plane, with a nozzle temperature of 35 °C, resulted as the most appropriate parameter combination for printing the target geometry. No significant influence of the printing speed on the process outcomes was found, thus choosing the highest speed value within the investigated range can increase productivity.



2018 ◽  
Vol 49 (1) ◽  
pp. 839-842 ◽  
Author(s):  
Seog Soon Kim ◽  
Hyun Surk Kim ◽  
Jong Gyun Lee ◽  
Chang Woo Seo


RSC Advances ◽  
2018 ◽  
Vol 8 (63) ◽  
pp. 35863-35869 ◽  
Author(s):  
Chuanhao Xu ◽  
Chongwei An ◽  
Yanling Long ◽  
Qianbing Li ◽  
Hao Guo ◽  
...  

To explore a new manufacturing method in preparing energetic composites, an inkjet printing device possessing the ability of high precision and flexibility was utilized to deposit six 3,4-dinitrofurazanofuroxan and hexogen based explosive inks.



Author(s):  
Ivan Arango ◽  
Catherine Cifuentes

Machines for direct digital inkjet printing on cylindrical containers are a new technology out on the market. Their commercialization in the industrial sector has been affected by their high precision. This leads to the use of mechanisms with narrow manufacturing tolerances and to the search for topologies that have the least accumulated error without affecting quality. Machines with topologies to work on flat substrates have printing and productivity problems working on cylindrical substrates. This research paper presents the qualitative design of a direct digital inkjet printer working over cylindrical substrates comparing five mechanical topologies; three topologies with radial distribution and two topologies with parallel distribution. The aim of these topologies is to find the precision, quality and efficiency of the printer taking into account the restrictions present in its construction. Each topology has separate constitutive mechanisms, it is analyzed the tolerance ranges between the print head and the substrate whose cumulative error maximizes the inkjet print resolution to determine precision. From five Topologies, number 1, 2 and 5 meet the requirements. the topology 2 meets the requirements but it is not able to be developed due to current technological limitations.



2017 ◽  
Vol 5 (24) ◽  
pp. 6021-6029 ◽  
Author(s):  
C. Gadea ◽  
Q. Hanniet ◽  
A. Lesch ◽  
D. Marani ◽  
S. H. Jensen ◽  
...  

An aqueous metal–organic solution is designed to deposit YSZ thin films by high precision and reliable inkjet printing.



Author(s):  
J. C. Russ ◽  
T. Taguchi ◽  
P. M. Peters ◽  
E. Chatfield ◽  
J. C. Russ ◽  
...  

Conventional SAD patterns as obtained in the TEM present difficulties for identification of materials such as asbestiform minerals, although diffraction data is considered to be an important method for making this purpose. The preferred orientation of the fibers and the spotty patterns that are obtained do not readily lend themselves to measurement of the integrated intensity values for each d-spacing, and even the d-spacings may be hard to determine precisely because the true center location for the broken rings requires estimation. We have implemented an automatic method for diffraction pattern measurement to overcome these problems. It automatically locates the center of patterns with high precision, measures the radius of each ring of spots in the pattern, and integrates the density of spots in that ring. The resulting spectrum of intensity vs. radius is then used just as a conventional X-ray diffractometer scan would be, to locate peaks and produce a list of d,I values suitable for search/match comparison to known or expected phases.



Author(s):  
K. Z. Botros ◽  
S. S. Sheinin

The main features of weak beam images of dislocations were first described by Cockayne et al. using calculations of intensity profiles based on the kinematical and two beam dynamical theories. The feature of weak beam images which is of particular interest in this investigation is that intensity profiles exhibit a sharp peak located at a position very close to the position of the dislocation in the crystal. This property of weak beam images of dislocations has an important application in the determination of stacking fault energy of crystals. This can easily be done since the separation of the partial dislocations bounding a stacking fault ribbon can be measured with high precision, assuming of course that the weak beam relationship between the positions of the image and the dislocation is valid. In order to carry out measurements such as these in practice the specimen must be tilted to "good" weak beam diffraction conditions, which implies utilizing high values of the deviation parameter Sg.



Sign in / Sign up

Export Citation Format

Share Document