Статті в журналах: "Printing method"

1

Phillips, Michael. "“Printing in the infernal method”: William Blake’s method of “Illuminated Printing”." Interfaces, no. 39 (July 1, 2018): 67–89. http://dx.doi.org/10.4000/interfaces.489.

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2

Chen, Ni, Qiang Wang, Ping Yang, and Jun Long Xu. "Research on the Evaluation of Digital Prints Quality Based on Noise." Applied Mechanics and Materials 731 (January 2015): 222–27. http://dx.doi.org/10.4028/www.scientific.net/amm.731.222.

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With the development of digital printing, the needs for evaluating digital printing increase. In this study, the factors affecting the quality of digital prints are analyzed, and a set of digital prints noise detection system, test charts and evaluation methods are established by decoding the formation mechanism of the noise. Experiments showed that the noise had been affected by the type of paper, the image forming method of digital printing, the toner particles closely related in particular. As a result, this study can be used to select and optimize the printing’s outputting resolution to ensure printing quality based on subjective and objective evaluation the noise of digital printing.

3

Peng Liu, Peng Liu, Ning Zhao Ning Zhao, Linghui Ren Linghui Ren, and Qianqian Xu Qianqian Xu. "Color restoration method of printing in machine visual detection." Chinese Optics Letters 12, s1 (2014): S11501–311506. http://dx.doi.org/10.3788/col201412.s11501.

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4

Yang, Minhua, Xin-guang Lv, Xiao-jie Liu, and Jia-qing Zhang. "Research on color 3D printing based on color adherence." Rapid Prototyping Journal 24, no. 1 (January 2, 2018): 37–45. http://dx.doi.org/10.1108/rpj-07-2016-0112.

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Purpose This paper aims to present a method of color three-dimensional (3D) printing based on color adherence. Design/methodology/approach First, experiments of the color effects of 3D printings using different carriers and different printing methods were performed. Second, the color of a specific point could be calculated through a theory of dimension-reducing, and the color distribution of 3D model was transformed from 3D to 1D color line corresponding with 3D print sequence. At last, the color lines, which were printed on a PE film by silk-screen printing, was carried by a filament and then printed through a fused deposition modeling 3D printer. Findings The printing ink and PE film are suitable as the pigment and carrier under this investigation, respectively. Based on an idea of reducing dimension, the method of 3D color printing through adhering color to a filament is realized. The color saturation of the sample was relatively high through the method. Research limitations/implications It is hard to avoid that there may be some residual color in the nozzle through this method, and the purity of following color will be affected. As a result, continuous improvements should be made to perfect the method. Practical implications An approach of 3D color printing is described in detail, and what kind of model is more applicable is discussed particularly. Originality/value This approach is implemented to print color 3D objects with just one nozzle by means of color adherence. That is, printing the 3D objects using the filament is carried out with 1D color line, which is printed by a traditional printing method.

5

Shen, Xiaoqiang, Zhiheng Yu, Fengli Huang, Jinmei Gu, and Hui Zhang. "Fabrication of 3D microstructures for flexible pressure sensors based on direct-writing printing." AIP Advances 12, no. 10 (October 1, 2022): 105205. http://dx.doi.org/10.1063/5.0107003.

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Microstructure plays an important role in improving the performance of flexible sensors. Changing the shape of the dielectric layer microstructure is an effective countermeasure to promote the sensitivity of capacitive sensors. Nevertheless, traditional microstructure fabrication methods have high manufacturing costs, cumbersome manufacturing processes, and single structure manufacturing, which restrict the development of flexible sensors. In this work, electro-hydro-dynamic (EHD) printing method and aerosol jet (AJ) printing method were applied to fabricate 3D microstructures, in a manner of printing the same pattern in multiple layers. The height and morphology of 3D microstructures, under different printing parameters, were compared by changing the number of printing layers and printing speed. Additionally, the printing effects of the two printing methods were compared. The results demonstrated that various shapes and highly controllable 3D microstructures could be fabricated by both methods. The EHD printing method had higher manufacturing precision, whereas the AJ printing method had higher stacking efficiency. The height and morphology of 3D microstructures could be effectively controlled by changing the number of printed layers and the printing speed of the microstructures. It is indicated that the EHD printing method and the AJ printing method both have great potential in the fabrication of 3D microstructures and that both methods had their own advantages.

6

Vaganov, A. V., S. S. Shemelyunas, A. A. Shvedunenko, and A. M. Makarov. "3D PRINTING TIME REDUCTION METHOD." Izvestia Volgograd State Technical University, no. 3 (2022): 47–49. http://dx.doi.org/10.35211/1990-5297-2022-3-262-47-49.

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7

Phillips, Michael. ""Printing in the Infernal Method"." Interfaces 30, no. 1 (2010): 21–34. http://dx.doi.org/10.3406/inter.2010.1369.

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8

Phung, Thanh-Huy. "An Electrohydrodynamic (EHD) Jet Printing Method for Increasing Printing Speed." NIP & Digital Fabrication Conference 33, no. 1 (November 1, 2017): 126–27. http://dx.doi.org/10.2352/issn.2169-4451.2017.33.126.

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9

Phung, Thanh-Huy. "An Electrohydrodynamic (EHD) Jet Printing Method for Increasing Printing Speed." NIP & Digital Fabrication Conference 33, no. 1 (November 1, 2017): 126–27. http://dx.doi.org/10.2352/issn.2169-4451.2017.33.1.art00030_1.

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10

Ji, Wen Ge, Hua Wu, Jing Shen, and Mei Feng Wang. "A Novel and Efficient Method for Digital Printing." Applied Mechanics and Materials 404 (September 2013): 668–71. http://dx.doi.org/10.4028/www.scientific.net/amm.404.668.

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We propose a method for digital printing which is novel and efficient. Digital printing is a technical breakthrough in the field of traditional printing and dyeing industry, which is also an effective solution to solve the three high problem, namely, high energy consumption, high noise, high pollution, in the traditional printing and dyeing industry. However, the widely used methods in printing and dyeing system have some deficiencies, such as the low performance of the PC processor and the limitation of transferring data by parallel interface. The proposed method takes advantage of multi-core processor, DMA and RAID technology. Multi-core processor can speed up the processing of the print command and the print images, while DMA technology can minimize the intervention of the CPU to input/output operations which makes the CPU more effective to process the images. Furthermore, the use of RAID technology can improve the access speed of the hard disk which leading to the efficiency improvement of the entire computer system. As we can see that the combination of those three technologies can greatly improve the efficiency of digital printing machine, thus speeding up the popularity of digital printing.

11

Teng, H. M., S. K. Fan, C. H. Jiang, Q. W. Yang, F. H. Liu, and C. C. Tsao. "Study on the printing quality of fused deposition modeling using Taguchi method." Journal of Physics: Conference Series 2345, no. 1 (September 1, 2022): 012014. http://dx.doi.org/10.1088/1742-6596/2345/1/012014.

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Abstract Fused deposition modeling (FDM) in 3D printing is a very promising technology and one of the focuses of scientific research. The main reason is that it has the advantages of simple structure, relatively low price and convenient operation, which has made its development more and more rapid in recent years. However, due to the fact that the FDM products are susceptible to the operating environment, the printing quality is not stable enough and the development is restricted. In addition, this research uses Taguchi method to explore FDM to optimize a long and thin desired volume of the workpiece under different printing parameters (printing temperature, printing speed ratio, and printing layer thickness). From the experimental results, the size of the factors that affect the FDM’s expected volume of the workpiece is, in order, the printing temperature is the most important, the printing speed ratio is the second, and the printing layer thickness is the smallest. The optimal parameter combination for the desired workpiece volume is A1B1C1, that is, the printing temperature is 190°C, the printing speed ratio is 0.286 (20 mm/s on the outer side, 70 mm/s on the inner side), and the printing layer thickness is 0.1 mm. Finally confirmed the experimental results and found that the volume error of the finished product using the best printing parameters is less than 0.3 %, which proves that the optimized printing parameters obtained by Taguchi method are indeed effective and feasible.

12

Coggiola, Vivian N., Juan Pablo Real, and Santiago D. Palma. "A new method for 3D printing drugs: melting solidification printing process." Journal of 3D Printing in Medicine 4, no. 3 (September 2020): 131–34. http://dx.doi.org/10.2217/3dp-2020-0024.

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13

Phung, Thanh Huy, Seora Kim, and Kye-Si Kwon. "A high speed electrohydrodynamic (EHD) jet printing method for line printing." Journal of Micromechanics and Microengineering 27, no. 9 (August 2, 2017): 095003. http://dx.doi.org/10.1088/1361-6439/aa7c6b.

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14

Nemoto, Nobuki, Takeo Miki, and Takashi Yamaguchi. "Digital Watermark for Printing Images -Application to Thermal Transfer Printing Method-." NIP & Digital Fabrication Conference 30, no. 1 (January 1, 2014): 243–48. http://dx.doi.org/10.2352/issn.2169-4451.2014.30.1.art00060_1.

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15

Cykowska-Błasiak, Małgorzata, and Paweł Ozga. "3D printing, as a tool for planning orthopedic surgery." Budownictwo i Architektura 14, no. 1 (March 10, 2015): 015–23. http://dx.doi.org/10.35784/bud-arch.1662.

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The purpose of the literature review is to determine the scope of 3D printing, also known as RP (Rapid Prototyping) applications in manufacturing medical model based on CJP (Collor Jet Printing) technology, with emphasis on the use in orthopedic surgery planning. The research of the presented method will be focused on the financial aspect. Researchers accept as axiomatic fact that the main buyer of the MRP (Medical Rapid Prototyping) structure will be the patient while the recipient will be the doctor or surgeon that provides the operation. Using available open-source software solutions and suitable method for the treatment of CT (Computed Tomography) scans based on filtering RAW files managed we to get the best or relatively good results allowing to exclude a human work from one of the most difficult and time-consuming processes. Total cost of 3D printings including all production processes and post-productions are about 50% lower than commercial rates (on free market) for the model of: “oscoxae” including "osfemoris" (femur length not exceeding 20 cm). In our opinion it’s "relatively positive" effect. Despite the success in the field of lowering the cost of 3D prints our work is still focused on reducing it (at least up to another 30%) by using automated-machine processing and tasks automation, as well as using another printing methods. Using 3D printings as a tools to help plan complex orthopedic surgeries make possible to extremely reduce the time of using instrumentation and the treatment time (comparing to similar surgeries carried out without using 3D printings).

16

Zhou, Jin Feng, Zeng Kai Jin, Mei Fei Zhang, and Hui Ying Chen. "A Fast Digital Printing Method for Silk Book." Advanced Materials Research 811 (September 2013): 304–7. http://dx.doi.org/10.4028/www.scientific.net/amr.811.304.

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Silk fabric was first developed in ancient China, and Chinese silk also promoted the first world large-scale commercial exchanges between the East and the West. Digital printing is a technical breakthrough in the field of traditional printing and dyeing industry, which can also improve the value of the silk. There is a long history of making books by silk, and the recent revival of silk books also put forward new demands to digital printing. There exist two methods for printing book, both of which have their disadvantages. We propose a fast digital printing method for silk book which combines the advantages of the previous two methods. As the silk book has become a new choice for book collection, we believe that the proposed method will largely accelerate the popularity of silk book.

17

Wang, Yi Ming, Bang She Chen, Yan Li, and Shao Hua Zhang. "Research on Dynamic Design Method Based on Measuring Information for Printing Press." Advanced Materials Research 174 (December 2010): 290–94. http://dx.doi.org/10.4028/www.scientific.net/amr.174.290.

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Printing machinery’s reliability is one of the most important index parameter and good dynamic characteristics are essential for high speed printing press. The dynamic characteristic is predictable for printing machine with dynamic design. With the complexity of printing technique and printing machine, information, such as load on components is lack, leading to the difficulty of dynamic model solving and further more the dynamic parameters needs to be verified. Firstly, according to the dynamic design method, a dynamic design process based on measuring information for printing machine was put forward. Secondly, on the basis of principle and structure analysis to typical printing machine, dynamic characteristics measurement item and method was determined. With a wallboard of a two-color offset press acting as an example, the utilizing method was illustrated through dynamic modeling, theoretical model analysis, experiment model analysis based on vibration measurement and comparing the theoretical and experimental results. Finally, a Dynamic Design Assistant Platform based Vibration Measurement for Printing Machine was developed and had been used in 10 kinds of printing machine measurement and analysis. The conclusion shows that the tolerance of the theoretical model analysis results and experiment results is allowed. A new approach for new printing machine design and optimal design for existed printing machine is given.

18

Luo, Mingying. "Discussion on Redesign of Image from Digital Printing Process." Asian Journal of Social Science Studies 2, no. 2 (May 26, 2017): 45. http://dx.doi.org/10.20849/ajsss.v2i2.163.

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Digital printing is an indispensable link in the modern printing technology. It is the traditional pre-press process on the transition to digital technology in imaging technology, the digital printing technology. Digital printing expounds digital image process in the design means and methods and their influences on the printing quality from the angle of separation method, image processing method, etc..

19

Wang, Xin Feng, Qing Quan Liao, Fang Xie, and Yi Tao. "A Kind of Electrode Printing Screen of Equivalent Elastic Modulus Calculation Method." Key Engineering Materials 546 (March 2013): 81–83. http://dx.doi.org/10.4028/www.scientific.net/kem.546.81.

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Electrode printing screen is an important component in electrode printing manufacturing equipment. Its mechanical properties directly related to printing electrode precision and equipment life, so it is necessary for calculation of mechanics performance analysis. In this paper, by using material mechanics knowledge, the equivalent elastic modulus calculation formula of electrode printing screen is derived and can be applied to mechanical analysis and calculation of electrode printing screen.

20

Shi, Jing Min, Jian Wei Wang, and Wei Xiao. "Research Progress of Preparation Technology of Nano Copper Powder for 3D Printing." Key Engineering Materials 777 (August 2018): 150–57. http://dx.doi.org/10.4028/www.scientific.net/kem.777.150.

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Nanocopper has become one of the research hotspots of metal powder for 3D printing, due to its excellent properties. In this paper, technical methods, process flow and research progress were systematically introduced of nanocopper powder for 3D printing. Preparation of nano-copper powder for 3D printing are mainly physical and chemical methods. Physical methods include atomization method, physical vapor deposition method, grinding method, electric explosion method. Chemical methods include sol-gel method, radiation chemistry, plasma, microemulsion, hydrothermal, liquid reduction and so on. The advantages and disadvantages of these methods were compared in detail, and the future development direction of nano-copper powder for 3D printing was look forward to.

21

KamalElDeen, Marwa. "Studying the influence of using Nano technology on printing methods future and un-printing image method." International Design Journal 1, no. 1 (January 1, 2012): 1–7. http://dx.doi.org/10.21608/idj.2012.295283.

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22

Han, Qiang, and Wei Huang. "Control Method for Improving Efficiency of Digital Inkjet Printing." Advanced Materials Research 816-817 (September 2013): 467–70. http://dx.doi.org/10.4028/www.scientific.net/amr.816-817.467.

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Improving speed of digital inkjet printing is most important to put the digital inkjet printing over for industrial mass production. The factors that impact the speed of digital inkjet printing are data analyzed. A new high-efficiency control method that improving the data processing algorithm efficiency is described in this paper.

23

Delehanty, James B., and Frances S. Ligler. "Method for Printing Functional Protein Microarrays." BioTechniques 34, no. 2 (February 2003): 380–85. http://dx.doi.org/10.2144/03342mt02.

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24

Nikitov, S. A., L. Presmanes, Ph Tailhades, and D. E. Balabanov. "Magnetic duplication and contact printing method." Journal of Magnetism and Magnetic Materials 241, no. 1 (March 2002): 124–30. http://dx.doi.org/10.1016/s0304-8853(01)00920-9.

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25

Nino, Cesar L., and T. Roger Keane. "A Robust Multi-pass Printing Method." NIP & Digital Fabrication Conference 23, no. 1 (January 1, 2007): 781–86. http://dx.doi.org/10.2352/issn.2169-4451.2007.23.1.art00065_2.

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26

Choi, B.-O., C. H. Kim, and D. S. Kim. "Manufacturing ultra-high-frequency radio frequency identification tag antennas by multilayer printings." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 224, no. 1 (August 11, 2009): 149–56. http://dx.doi.org/10.1243/09544062jmes1610.

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In spite of the advantages of high throughput and a low manufacturing cost conferred by the gravure printing method, it has been shown that antennas printed using the gravure printing method do not offer satisfactory performance because of the limitations of the conductive materials used as ink. In this article, a roll-to-roll gravure-offset printing system is proposed for the manufacturing of printed ultra-high frequency radio frequency identification (RFID) tag antennas. Antennas printed using the multi-layer gravure-offset system are also demonstrated with their performances. The gravure-offset printing system mainly consists of three printing parts, i.e. drying units, vision systems, and register control systems for multi-layer printings. In the identification range test using an RFID reader, compared to the conventional RFID tags with copper-etched antennas, which show the identification range of about 3.2 m on average, the three-layer printed antennas with bonded tag chips exhibit the identification range of about 1.8 m on average (i.e. the performance of about 60 per cent of conventional copper-etched antennas), which implies that the printed antennas could be applicable to real fields.

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Kokosha, Anna, Dmytro Uschapovskyi, Viktoriya Vorobyova, Tetiana Motronyuk, and Georgy Vasiliev. "CORROSION RESISTANCE OF ZINC GALVANIC DEPOSITS OBTAINED BY THE ELECTROCHEMICAL 3D PRINTING METHOD." TECHNICAL SCIENCES AND TECHNOLOGIES, no. 1(35) (2024): 232–39. http://dx.doi.org/10.25140/2411-5363-2024-1(35)-232-239.

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The article is devoted to the implementation of the process of electrochemical 3D printing of zinc products and the determination of the effect of the methodof their production on corrosion resistance. The possibility of electrochemical 3D printing of zinc objects with a fine-crystalline compact structure using high-speed sulfate plating electrolyte has been shown. The most resilient and elastic zinc depositswere obtained in the electrolyte without the addition of organic additives and when gelatin was added to the electrolyte. The use of naphthalene disulfonic acid of 1,5-disodium salt made it possible to obtain the most finely crystalline and semi-glossy zinc deposits, but the fragility of the deposits increased somewhat. Conducted studies of the corrosion resistance of printed zinc objects showed that the use of electrochemical 3D printing as a method of obtaining and introducing organic additives into the electrolyte does not lead to a decrease in the corrosion resistance of the metal

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Cao, Ying Yu, Hui Qi Gong, Jia Yi Jin, Wang De Wu, and Ji Zong Wang. "The Study of Wide-Format Digital Inkjet Printers’ Carriage Control Method with Double-Carriage." Applied Mechanics and Materials 741 (March 2015): 749–56. http://dx.doi.org/10.4028/www.scientific.net/amm.741.749.

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Aiming to shorten the inkjet printing mechanism single printing time based on the existing digital printing machine,the plan of wide-format digital inkjet printer with double-carriage was proposed to improve the printing speed.Referencing these ordinary printing machine products, the double-carriage reasonable motion parameters were given and the equations of the motion were established.After simulating the real printing process,the phenomenon of collision and printing deficiency was avoided by the way“carriage will give the way".PID control algorithm was adopted to control the carriages’ displacement and solve the coupling problem of mechanical systems.The ADAMS/Simulink combined simulation control systems ensures the displacement fluctuations within the permissible range.

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Koponen, Jarmo, Keijo Haataja, and Pekka Toivanen. "A novel deep learning method for recognizing texts printed with multiple different printing methods." F1000Research 12 (April 20, 2023): 427. http://dx.doi.org/10.12688/f1000research.131775.1.

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Background: Text recognition of cardboard pharmaceutical packages with machine vision is a challenging task due to the different curvatures of packaging surfaces and different printing methods. Methods: In this research, a novel deep learning method based on regions with convolutional neural networks (R-CNN) for recognizing binarized expiration dates and batch codes printed using different printing methods is proposed. The novel method recognizes the characters in the images without the need to extract handcrafted features. In detail, this approach performs text recognition considering the whole image as an input extracting and learning salient character features straight from packaging surface images. Results: The expiration date and manufacturing batch codes of a real-life pharmaceutical packaging image set are recognized with 91.1% precision with a novel deep learning-based model, while Tesseract OCR text recognition performance with the same image set is 38.3%. The novel model outperformed Tesseract OCR also in tests evaluating recall, accuracy, and F-Measure performance. Furthermore, the novel model was evaluated in terms of multi-object recognition accuracy and the number of unrecognized characters, in order to achieve performance values comparable to existing multi-object recognition methods. Conclusions: The results of this study reveal that the novel deep learning method outperforms the well-established optical character recognition method in recognizing texts printed using different printing methods. The novel method presented in the study recognizes texts printed with different printing methods with high precision. The novel deep learning method is suitable for recognizing texts printed on curved surfaces with proper preprocessing. The problem investigated in the study differs from previous research in the field, focusing on the recognition of texts printed with different printing methods. The research thus fills a gap in text recognition that existed in the research of the field. Furthermore, the study presents new ideas that will be utilized in our future research.

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Hu, Qingxi, Die Feng, Haiguang Zhang, Yuan Yao, Mohamed Aburaia, and Herfried Lammer. "Oriented to Multi-Branched Structure Unsupported 3D Printing Method Research." Materials 13, no. 9 (April 26, 2020): 2023. http://dx.doi.org/10.3390/ma13092023.

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For the traditional three-axis (3D) configuration of the additive manufacturing (AM) platform, when printing the target model with a multi-branched structure, it is imperative to construct adequate support structures. To eliminate the use of support during the printing process, a non-directional unsupported 3D printing method for five-axis AM is proposed in this paper. By carrying out the K-means clustering algorithm, the coarse partition of the model is obtained, and then the fine decomposition represented by a sequence of separating planes is determined by a local dynamic search adjustment algorithm according to manufacturing constraints. The multi-branched structure of the model is divided into simple subparts so that the general model can be built in different directions and be printed with its own parts as the support. Two case studies were carried out for verification. The experimental results showed that the branch-model can be printed without support using the non-directional unsupported 3D printing method, and the non-directional unsupported 3D printing can save 18.72–20.60% of materials and 20.60–23.33% of time compared to conventional 3D printing.

31

Wang, Ying, Hao Xue Liu, and Min Huang. "A Novel Method to Qualify the Status of Printing Process Rapidly." Advanced Materials Research 174 (December 2010): 203–6. http://dx.doi.org/10.4028/www.scientific.net/amr.174.203.

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According to the characteristics of ink feeding and printing quality control principles, a new test sheet was designed for qualifying press state and the test results were discussed in this paper. This test sheet was printed under the condition that printing ink volume for different ink zone is identical. Solid density, dot gain and print contrast of different printing ink volume were simulated on a single test sheet, and thus the optimal printing status can be determined quickly. Experiment results show that this method is accessible, economic, and rapid. The optimum solid density values can be got easily for all primary colors on a single test sheet. This method is suit for the adjustment of printing status.

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Zhang, Xinyu, Xiang Chi, Zongan Li, Zhe Yuan, Jiquan Yang, Liya Zhu, and Feng Zhang. "An electrohydrodynamic (EHD) printing method with nanosilver ink for flexible electronics." International Journal of Modern Physics B 34, no. 17 (June 15, 2020): 2050154. http://dx.doi.org/10.1142/s0217979220501544.

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In this paper, the electrohydrodynamic (EHD) printing method for the flexible electronics with nanosilver ink was studied. The effect of DC voltage and air pressure on the printed nanosilver line was experimentally researched on the printing system. The necessary working voltage was above 600 V DC voltage, and when the voltage reached 1100 V, the line width increased from [Formula: see text] to [Formula: see text]. The air supply of [Formula: see text] resulted an obviously larger width than that of [Formula: see text], but the printing process was unstable on the [Formula: see text] condition. The EHD printing was applied to realize nanosilver ink line ranged from [Formula: see text] to [Formula: see text] and a kind of antenna pattern for radio frequency identification devices (RFID) was fabricated. This kind of EHD printing method has the advantages of high flexibility and printing resolution and shows potential prospects in the field of flexible electronics.

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Zeng, Lingwei, Fan Zhang, Xinghua Zhang, and Yiwen Tu. "3D printing path method for multi-tow continuous carbon fiber." Journal of Physics: Conference Series 2760, no. 1 (May 1, 2024): 012054. http://dx.doi.org/10.1088/1742-6596/2760/1/012054.

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Abstract Carbon fiber composite materials have many excellent characteristics such as high temperature resistance, friction resistance, thermal conductivity and corrosion resistance, so carbon fiber composite materials have become the first choice for printing materials. In order to improve the printing efficiency of carbon fiber 3D printing technology, it has been expanded to four side-by-side nozzles based on traditional single nozzles, and four nozzles are bound to print side by side. The four-nozzle side-by-side printing path has the problem of coordinating the motion planning of each nozzle, controlling the squeezing difference of each nozzle, and adjusting the angle of the print head, so it is necessary to reasonably control the squeezing amount of each nozzle and the angle of the print head. After the slicing processing based on the existing model, the Gcode code of the model is obtained. The Gcode code of the model is processed through the multi-tow continuous carbon fiber 3D printing path planning algorithm. The movement trajectory of each nozzle of the printer is reasonably planned based on the outer wall coordinates and the extrusion amount of each nozzle is controlled. Finally, the snipping instruction is executed after a circle of trajectory to print the next layer of motion trajectory, which ultimately improves the 3D printing while ensuring the accuracy of multi-beam model 3D printing.

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Yu, JiangYou, Le Cao, Hao Fu, and Jun Guo. "A method for optimizing stencil cleaning time in solder paste printing process." Soldering & Surface Mount Technology 31, no. 4 (September 2, 2019): 233–39. http://dx.doi.org/10.1108/ssmt-10-2018-0037.

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PurposeStencil cleaning is an important operation in solder paste printing process. Frequent cleaning may interrupt printing process and increase idle time, as well as loss for performing cleaning. This paper aims to propose a method to optimize the stencil cleaning time and reduce unnecessary cleaning operations and losses.Design/methodology/approachThis paper uses a discrete-time, discrete-state homogeneous Markov chain to model the stencil printing performance degradation process, and the quality loss during the stencil printing process is estimated based on this degradation model. A stencil cleaning decision model based on renewal reward theorem is established, and the optimal cleaning time is obtained through a balance between quality loss and the loss on idle time.FindingsA stencil cleaning decision model for solder paste printing is established, and numerical simulation results show that there exists an optimal stencil cleaning time which minimizes the long-term loss.Originality/valueStencil cleaning control is very important for solder paste printing. However, there are very few studies focusing on stencil cleaning control. This research contributes to developing a model to optimize the stencil cleaning time in solder paste printing process.

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Du, Bin, Shi Sheng Zhou, and Nan Wang. "Study on Printing Techniques of Modified Aluminum Paste Printing Ink." Advanced Materials Research 181-182 (January 2011): 691–96. http://dx.doi.org/10.4028/www.scientific.net/amr.181-182.691.

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The print production conditions of print production conditions are very strict that ink layer must be uniform and achieve sufficient gloss. To optimize the optimum printing process for aluminum paste printing ink，the L9(34)orthogonal design is used to observe influential factors such as the modified ratio of aluminum paste printing ink (A), printing speed (B), drying power (C). Print gloss, masking effects and scratch results are determined to evaluate the effects of different processes, and the results are analyzed by grading methods including direct method and variance method. The results showed that the main factor was printing speed (B), and the optimum extraction process was that print speed was 70m/min, the first printing UV drying power was 12kw and the second printing UV drying power was 12kw with the second modified aluminum paste printing ink. The optimal extraction process is simple, repeatable and adapt to industrial production.

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Ahn, Ju-Hun, Han-Na Kim, Jin Yeon Cho, Jeong Ho Kim, and Chang-Yull Lee. "Evaluation of Temperature Sensors for Detection of Heat Sources Using Additive Printing Method." Sensors 22, no. 21 (October 29, 2022): 8308. http://dx.doi.org/10.3390/s22218308.

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Electrohydrodynamic (EHD) inkjet printing is an efficient technique for printing multiple sensors in a multifaceted area. It can be applied to various fields according to the shape of the printing result and the algorithm employed. In this study, temperature sensors capable of detecting heat sources were fabricated. Inks suitable for EHD inkjet printing were produced, and optimal parameters for printing were determined. Printing was performed using the corresponding parameters, and various printing results were obtained. Furthermore, an experiment was conducted to confirm the temperature measurement characteristics of the results and the tolerance of the sensor. Grid-type sensors were fabricated based on the results, and the sensor characteristics were confirmed in an orthogonal form. Heat was applied to arbitrary positions. Resistance to changes due to heat was measured, and the location at which the heat was generated was detected by varying the change in resistance. Through this study, efficient heat control can be achieved, as the location of the heat source can be identified quickly.

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Qiu, Jingjiang, Junfu Li, Zhongwei Guo, Yudong Zhang, Bangbang Nie, Guochen Qi, Xiang Zhang, Jiong Zhang, and Ronghan Wei. "3D Printing of Individualized Microfluidic Chips with DLP-Based Printer." Materials 16, no. 21 (October 31, 2023): 6984. http://dx.doi.org/10.3390/ma16216984.

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Microfluidic chips have shown their potential for applications in fields such as chemistry and biology, and 3D printing is increasingly utilized as the fabrication method for microfluidic chips. To address key issues such as the long printing time for conventional 3D printing of a single chip and the demand for rapid response in individualized microfluidic chip customization, we have optimized the use of DLP (digital light processing) technology, which offers faster printing speeds due to its surface exposure method. In this study, we specifically focused on developing a fast-manufacturing process for directly printing microfluidic chips, addressing the high cost of traditional microfabrication processes and the lengthy production times associated with other 3D printing methods for microfluidic chips. Based on the designed three-dimensional chip model, we utilized a DLP-based printer to directly print two-dimensional and three-dimensional microfluidic chips with photosensitive resin. To overcome the challenge of clogging in printing microchannels, we proposed a printing method that combined an open-channel design with transparent adhesive tape sealing. This method enables the rapid printing of microfluidic chips with complex and intricate microstructures. This research provides a crucial foundation for the development of microfluidic chips in biomedical research.

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Shen, Xin Min, Jian Zhao Zhou, and Qun Zhang Tu. "Development of Three-Dimensional Printing Technology Based on Deterministic Electrochemical Deposition Method." Advanced Materials Research 1089 (January 2015): 319–23. http://dx.doi.org/10.4028/www.scientific.net/amr.1089.319.

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Three-dimensional printing technology based on deterministic electrochemical deposition method has been developed, which is generated from the electroplating. The traditional electroplating system has been improved to ensure the printing process controllable. Through accurate control of the deposition region, deposition rate, and the dwelling time in the printing process, a three-dimensional object of almost any shape can be obtained by deterministic manufacturing process. Through addition of alcohol to the electrolyte, Marangoni effect is generated, which will improve the property of the deposited layer. The deterministic electrochemical deposition not only can decrease the cost of the printing process, but also will promote the application of the 3D printing technique in many fields.

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Zhao, Chen Fei, Qing Han, and Yong Chang Chen. "Research on Ink's Dot Area Percentage's Prediction in Digital Printing Based on Spectrum Analyzing." Applied Mechanics and Materials 469 (November 2013): 340–43. http://dx.doi.org/10.4028/www.scientific.net/amm.469.340.

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Digital printing can print directly the information which will be printed on the package box by digital print machine and internet or computer, which removes the procession of color separation, makeup, plate-making in the traditional printing. The digital print can print any number package box at any time and at any place, which can realize the variable data printing, and which has a price advantage in the short version printing. Therefore, digital printing is a good method for personalized packaging printing.In digital printing, color control is important for print quality detection. In this paper the dot area percentage of cyan, magenta, yellow ink can be predicted by measuring the color’s spectral reflectance in order to control the ink’s amount in digital print and realize the color’s precise control of cyan, magenta, yellow. In the prediction model of three color ink’s dot percentage, the characteristic of spectral reflectance curves for the various color ink is analyzed, and each ink’s high reflectivity and low reflectivity which is high correlation with the dot percentage is chosen and is calculated by normalization method in order to get each ink’s dot area percentage’ prediction model. At last by measuring the paper’s spectral reflectance and the using normalization method, paper’s color can be described, and the effect of paper on monochrome color ink’s dot area percentage can be analyzed. The research has important significance for packing box’s digital printing’s color high-fidelity reproduction.

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Hung, Tsung Hsin. "The Integration of Taguchi Method and FAHP Method to Improve the SMT Solder Paste Printing Thickness Processing Capability." Advanced Materials Research 569 (September 2012): 316–19. http://dx.doi.org/10.4028/www.scientific.net/amr.569.316.

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In response to the trend of miniaturization of electronic components, SMT (Surface Mount Technology) technology is become increasingly important. According to statistics, more than 70% of SMT defects occur in the solder paste printing process; hence, provided the solder paste printing process is completed correctly, the SMT yield can be maintained at a certain level. The solder paste printing process is the core of SMT technology; inability to control the process parameters may easily lead to poor solder results, which reduce product quality and increases production costs. By integrating the Taguchi and FAHP (Fuzzy Analytic Hierarchy Process) methods, this study attempted to obtain the solder thickness Cpk optimal parameters and apply DOE (Design of Experiments) in experimentation to determine the optimum SMT solder thickness parameter combination for process engineers to rapidly implement and control the SMT solder thickness process according to the optimal SMT process parameters. The empirical results suggested that, the SMT solder printing thickness processing capability Cpk value has been improved from 0.58 to 1.47, which could improve the quality of relevant electronic products.

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Ritonga, Nurhikma, Neni Mulyani, and Rika Nofitri. "IMPLEMENTATION OF E-COMMERCE IN PERCETAKAN CITRA BERSAMA TANJUNGBALAI USING THE CRM METHOD." Jurnal Riset Informatika 4, no. 2 (March 6, 2022): 183–90. http://dx.doi.org/10.34288/jri.v4i2.369.

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Citra Bersama Tanjungbalai Printing is a business engaged in selling printing products and services, established in 2006, located on Jalan Peninsula, Sirantau Village, Datuk Bandar District, Tanjungbalai City. The problem with Citra Bersama Printing is that it has not implemented an online sales system, it is difficult for customers to know about sales information in the printing press. There is no information system to carry out promotions, and the process of recording customer order data at the printing press is still doing it manually. Using the CRM method is a web-based printing product and service sales system that can help buyers find out various information and make it easier for buyers to place orders without coming directly to the printer. With the application of E-commerce using the CRM method, it can help Tanjungbalai Citra Bersama Printing carry out promotions and provide information related to the sale of products and services it markets to customers, and expand sales of products and services it markets because of promotional features, discount prices, customer data, live chat, and product ratings.

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Li, Wei Wei, Lu Hai Li, Li Xin Mo, Xu Wei Hu, Xian Leng, Hua Fang, Wen Bo Li, and Shu Kun Li. "Progress of Printing RFID Antenna Using Water-Based Conductive Ink." Advanced Materials Research 380 (November 2011): 137–40. http://dx.doi.org/10.4028/www.scientific.net/amr.380.137.

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The RFID antenna is mainly fabricated by metal coil winding, copper or aluminum etching, plating, printing and so on. In this paper, the comparison of above methods is conducted and the progress of the printing method and water-based conductive ink are emphasized. Water-based conductive inks are environmental-friendly, economic, high applicability, and are widely used in screen printing, gravure, flexible printing, inkjet printing, etc. Although starts late and the technology is not very mature, the RFID antenna prepared by printing method has many advantages, such as low cost, high precision, easy operation, variety of substrates, etc. Thus the printing has great potential applications on the fabrication of RFID antenna. Furthermore, water-based conductive inks used in ink-jet printing RFID antenna will be the first choice of printed RFID antenna.

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Wang, Jun, Tie Feng Zhang, and Xiang Yi Guan. "Study on Fuzzy Comprehensive Evaluation Model of Printing Quality Based on AHP Method." Advanced Materials Research 174 (December 2010): 243–46. http://dx.doi.org/10.4028/www.scientific.net/amr.174.243.

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A fuzzy comprehensive evaluation model of printing quality was established by using the method of fuzzy evaluation and analytical hierarchy process(AHP).The main parameters which influence printing quality were analyzed. The factor set to constitute fuzzy comprehensive evaluation was confirmed. The structure of analytical hierarchy was established by analyzing different plans, which influences printing quality evaluation. Comparison judgment matrixes were constructed by pairwise comparison of each factor using Saaty 1-9 scales. The weights of every factor were determined by calculating the feature vectors of comparison judgment matrixes and the consistency test. Finally the printing quality hierarchy was evaluated by using fuzzy comprehensive evaluation and according to maximum membership principle. The result indicated that the model objectively determined the weights of parameters which influence printing quality, subjectively evaluated the printing quality hierarchy, and realized the unification of subjective evaluation and objective evaluation.

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Zhang, Wei, Xiangwen Deng, and Jie Cai. "Intelligent Automatic 3D Printing Machine Based on Wireless Network Communication." Wireless Communications and Mobile Computing 2021 (December 16, 2021): 1–14. http://dx.doi.org/10.1155/2021/1778281.

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With the advent of the era of big data, people have higher requirements for material and spiritual gains and happiness, and their demands for various services in the communications field are diversified. The most significant change is the 3D printing technology. With its unique advantages, 3D printing is gradually sweeping the world. In order to explore whether the technology or digital model based on wireless network communication can realize the automation and intelligence of 3D printing, this article applies a variety of scientific methods such as simulation experiment method, data collection method, and sample analysis method; collects samples; and simplifies the algorithm, using basic experimental methods, orthogonal experiments, and single-factor experiments to study the various influencing factors in the automatic printing process to obtain the optimal parameter combination. Experimental results show that with the support of wireless communication network hardware and data, the timeliness and quality of 3D printing can be significantly improved. These are the basis for realizing 3D printing automation and intelligence. Further experiments show that the wireless communication network intelligent automatic 3D printing machinery adjusts 3D printing parameters through wireless communication technology, combined with intelligent real-time monitoring and sensing equipment; we can find that the printing efficiency of the 3D printing machinery is increased by about 15%, and the economic cost is saved by about 20%. It basically shows the practicality of the experimental research results.

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Cha, Minsu, Chang-Won Kim, Taehee Lee, Baek-Joong Kim, Hunhee Cho, Taehoon Kim, and Hyunsu Lim. "An Optimal Layout Model of Curved Panels for Using 3D Printing." Sustainability 14, no. 21 (October 26, 2022): 13896. http://dx.doi.org/10.3390/su142113896.

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Recently, the application of 3D printing in the production of curved panels has increased due to the irregular shape of free-form buildings. In general, 3D printing based on additive manufacturing (AM) methods requires various supports that cause a waste of printing materials and an increase in production time. In this study, we proposed a method for printing a pair of panels that can hold each other through the minimal support connected between each panel. However, this printing method causes an additional non-productivity factor called the non-printing path for the nozzle to move between the pair of panels. Therefore, we also developed an optimal layout model that can minimize non-printing paths and used the genetic algorithm (GA) for its calculation. As a result of applying the optimization model proposed in this study through the case study, the non-printing path was reduced by 18.54% compared with that from the existing method, and the non-printing time was reduced by 34.41 h. The total production time, including non-printing time and printing time, was reduced by 3.89%, and the productivity was improved by 4.04%. The model proposed in this study is expected to minimize unproductive factors that occur in the process of manufacturing curved panels and reduce the energy consumption.

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Li, Bing Fang. "Study on Client-Side Color Reproduction Methods of Network Printing." Applied Mechanics and Materials 182-183 (June 2012): 1967–71. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.1967.

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Because of the current network printing, exists the problem about the long print cycle, expensive and big chromatic aberration of the client display color reproduction. The article gives a method to gets the printing reproduction data and gets WYSIWYG about network printing client desktop displays color. On the basis of client's desktop display color, with the help of network printers printing technology, image processing software, visual observation of network clients and network form, the client desktop color display data is gotten. By the software reduction calculation, the method implements consistent the effect between the client-side displays color and printing color. The demonstration shows that it can solve the problem of network printing client display color printing reproduce, improves the quality of network printing, reduces network printing cycle.

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Jing, Jianping, Yasufumi Takama, and Toru Yamaguchi. "Application of Fuzzy Inference Method in Printing Pressure State Expectation System." Journal of Advanced Computational Intelligence and Intelligent Informatics 10, no. 4 (July 20, 2006): 594–601. http://dx.doi.org/10.20965/jaciii.2006.p0594.

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To solve a problem in determining the printing pressure of printing machine for real-world liquid crystal display panel (LCD) production, a Printing Pressure expectation system is proposed based on a fuzzy inference method. In real-world LCD panel production, the recognition of printing pressure conditions and its control is a very important and difficult factor that influences the product quality. It is usually performed by skilled engineers, whose performance highly depends on his tacit knowledge. In the proposed system, a fuzzy inference method is employed to solve the problem. Images of the printing area are observed with cameras, from which abstract features are extracted with image processing. The output of the system is the state of printing pressure, which is divided into 3 states: EXCESSIVE PRESSURE (EP), GOOD PRESSURE (GP), and LOW PRESSURE (LP). Based on the abstract features, the state is estimated with fuzzy membership functions. The shapes of membership functions are determined based on the sampled glasses obtained in actual LCD production line. The experiments are performed with the 2000 glasses that are also printed with actual printing machines, of which the result is compared with that of skilled engineers. It is shown that the proposed system outperforms the quality of skilled engineers. The developed system is installed in actual production line, and it is expected to increase the product quality and production speed, as well as to cut off production costs.

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Kim, Min-Wook, Sang-Hyun Park, and Kye-Si Kwon. "Bi-Direction Continuous Inkjet Printing for Selective Area Coating." Journal of Flexible and Printed Electronics 2, no. 2 (December 2023): 273–80. http://dx.doi.org/10.56767/jfpe.2023.2.2.273.

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The continuous inkjet (CIJ) printing method has fewer nozzle clogging issues and faster jetting speed compared to the drop-on-demand (DOD) inkjet method, and it can be relatively cost-effective to implement. Additionally, it has relatively wider printing capability, which allows for coating or marking printing on curved substrates. Nevertheless, commercially available CIJ equipment is still limited to narrow printing width of about 10 mm, because most continuous inkjet devices employ a unidirectional printing method. In this study, we conducted research on a bidirectional printing method that can expand the printing width, enabling continuous inkjet to be utilized in a broader range of applications. Bidirectional printing requires bidirectional charging, which can cause problems when the polarity of the ink changes. We address and visualize these issues and propose a printing method that can overcome them. We expect that the proposed method will have suitable applicability for coating selective areas.

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Guan, Jiaao, Shangting You, Yi Xiang, Jacob Schimelman, Jeffrey Alido, Xinyue Ma, Min Tang, and Shaochen Chen. "Compensating the cell-induced light scattering effect in light-based bioprinting using deep learning." Biofabrication 14, no. 1 (December 3, 2021): 015011. http://dx.doi.org/10.1088/1758-5090/ac3b92.

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Abstract Digital light processing (DLP)-based three-dimensional (3D) printing technology has the advantages of speed and precision comparing with other 3D printing technologies like extrusion-based 3D printing. Therefore, it is a promising biomaterial fabrication technique for tissue engineering and regenerative medicine. When printing cell-laden biomaterials, one challenge of DLP-based bioprinting is the light scattering effect of the cells in the bioink, and therefore induce unpredictable effects on the photopolymerization process. In consequence, the DLP-based bioprinting requires extra trial-and-error efforts for parameters optimization for each specific printable structure to compensate the scattering effects induced by cells, which is often difficult and time-consuming for a machine operator. Such trial-and-error style optimization for each different structure is also very wasteful for those expensive biomaterials and cell lines. Here, we use machine learning to learn from a few trial sample printings and automatically provide printer the optimal parameters to compensate the cell-induced scattering effects. We employ a deep learning method with a learning-based data augmentation which only requires a small amount of training data. After learning from the data, the algorithm can automatically generate the printer parameters to compensate the scattering effects. Our method shows strong improvement in the intra-layer printing resolution for bioprinting, which can be further extended to solve the light scattering problems in multilayer 3D bioprinting processes.

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Zhang, Haiguang, Wenguang Zhong, Qingxi Hu, Mohamed Aburaia, Joamin Gonzalez-Gutierrez, and Herfried Lammer. "Research and Implementation of Axial 3D Printing Method for PLA Pipes." Applied Sciences 10, no. 13 (July 7, 2020): 4680. http://dx.doi.org/10.3390/app10134680.

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Additive manufacturing has been applied in many fields, but its layer-by-layer fabrication process leads to a weak inter-layer bond strength of printed parts, so it cannot meet the higher requirements for mechanical properties of the industry. At present, many researchers are studying the printing path planning method to improve the mechanical properties of printed parts. This paper proposes a method to plan the printing path according to the actual stress of pipe parts, and introduces the realization process of an algorithm in detail, and obtains the printing control G-code. Additionally, a 5-axis material extrusion platform was built to realize the printing of polylactic acid pipes with plane and space skeleton curves, respectively, which verified the feasibility and applicability of the method and the correctness of the planning path with standard material extrusion filaments. Finally, the tensile and bending experiments prove that axial printing enhances the mechanical properties of pipe parts.

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