Modeling and Experimental Study of the Localized Electrochemical Micro Additive Manufacturing Technology Based on the FluidFM

In this work, the localized electrochemical micro additive manufacturing technology based on the FluidFM (fluidic force microscope) has been introduced to fabricate micro three-dimensional overhang metal structures at sub-micron resolution. It breaks through the localized deposition previously achieved by micro-anode precision movement, and the micro-injection of the electrolyte is achieved in a stable electric field distribution. The structure of electrochemical facilities has been designed and optimized. More importantly, the local electrochemical deposition process has been analyzed with positive source diffusion, and the mathematical modeling has been revealed in the particle conversion process. A mathematical model is proposed for the species flux under the action of pulsed pressure in an innovatively localized liquid feeding process. Besides, the linear structure, bulk structure, complex structure, and large-area structure of the additive manufacturing are analyzed separately. The experimental diameter of the deposited cylinder structure is linearly fitted. The aspect ratio of the structure is greater than 20, the surface roughness value is between 0.1–0.2 μm at the surface of bulk structures, and the abilities are verified for deposition of overhang, hollow complex structures. Moreover, this work verifies the feasibility of 3D overhang array submicron structure additive manufacturing, with the application of pulsed pressure. Furthermore, this technology opens new avenues for the direct fabrication of nano circuit interconnection, tiny sensors, and micro antennas.

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R2R Gravure as an Additive Manufacturing Technology for the Fabrication of Large Area Flexible Displays and Inexpensive NFC Sensor Tags

2018 International Flexible Electronics Technology Conference (IFETC) ◽

10.1109/ifetc.2018.8583847 ◽

2018 ◽

Cited By ~ 1

Author(s):

Gyoujin Cho

Keyword(s):

Additive Manufacturing ◽

Manufacturing Technology ◽

Large Area ◽

Flexible Displays ◽

Additive Manufacturing Technology

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Customizing Food with an Additive Manufacturing Technology

Materials Science Forum ◽

10.4028/www.scientific.net/msf.713.43 ◽

2012 ◽

Vol 713 ◽

pp. 43-48

Author(s):

L. Serenó ◽

J. Delgado ◽

Joaquim de Ciurana

Keyword(s):

Additive Manufacturing ◽

Process Parameters ◽

Three Dimensional ◽

Manufacturing Technology ◽

Manufacturing Costs ◽

Three Dimensional Objects ◽

Additive Manufacturing Technology ◽

Qualified Personnel ◽

Broad Variety ◽

Traditional Technologies

The development of open Additive Manufacturing (AM) technologies, such as the Fab@Home system, has emerged as a freeform approach capable of producing complex three-dimensional objects with a broad variety of materials. The main objective of this work is to analyze and optimize the manufacturing capacity of this system when producing 3D edible objects. A new heated syringe deposition tool was developed and several process parameters were optimized to adapt this technology to consumers needs. The results revealed in this study show the potential of this system to produce customized edible objects without qualified personnel knowledge, therefore saving manufacturing costs compared to traditional technologies.

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Titanium Alloy Repair with Wire-Feed Electron Beam Additive Manufacturing Technology

Advances in Materials Science and Engineering ◽

10.1155/2019/3979471 ◽

2019 ◽

Vol 2019 ◽

pp. 1-23 ◽

Cited By ~ 8

Author(s):

P. Wanjara ◽

K. Watanabe ◽

C. de Formanoir ◽

Q. Yang ◽

C. Bescond ◽

...

Keyword(s):

Electron Beam ◽

Additive Manufacturing ◽

Three Dimensional ◽

Manufacturing Technology ◽

Image Correlation ◽

Fatigue Properties ◽

Wall Structure ◽

Operational Environment ◽

Additive Manufacturing Technology ◽

Wire Feed

Wire feeding can be combined with different heat sources, for example, arc, laser, and electron beam, to enable additive manufacturing and repair of metallic materials. In the case of titanium alloys, the vacuum operational environment of electron beam systems prevents atmospheric contamination during high-temperature processing and ensures high performance and reliability of additively manufactured or repaired components. In the present work, the feasibility of developing a repair process that emulates refurbishing an “extensively eroded” fan blade leading edge using wire-feed electron beam additive manufacturing technology was examined. The integrity of the Ti6Al4V wall structure deposited on a 3 mm thick Ti6Al4V substrate was verified using X-ray microcomputed tomography with a three-dimensional reconstruction. To understand the geometrical distortion in the substrate, three-dimensional displacement mapping with digital image correlation was undertaken after refurbishment and postdeposition stress relief heat treatment. Other characteristics of the repair were examined by assessing the macro- and microstructure, residual stresses, microhardness, tensile and fatigue properties, and static and dynamic failure mechanisms.

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Three-dimensional bioprinting speeds up smart regenerative medicine

National Science Review ◽

10.1093/nsr/nww037 ◽

2016 ◽

Vol 3 (3) ◽

pp. 331-344 ◽

Cited By ~ 7

Author(s):

Qi Gu ◽

He Zhu ◽

Jing Li ◽

Xia Li ◽

Jie Hao ◽

...

Keyword(s):

Additive Manufacturing ◽

High Resolution ◽

3D Printing ◽

Regenerative Medicine ◽

Cell Fate ◽

Control Cell ◽

Three Dimensional ◽

Manufacturing Technology ◽

The State ◽

Additive Manufacturing Technology

Abstract Biological materials can actively participate in the formation of bioactive organs and can even control cell fate to form functional tissues that we name as the smart regenerative medicine (SRM). The SRM requires interdisciplinary efforts to finalize the pre-designed organs. Three-dimensional (3D) printing, as an additive manufacturing technology, has been widely used in various fields due to its high resolution and individuation. In SRM, with the assistance of 3D printing, cells and biomaterials could be precisely positioned to construct complicated tissues. This review summarizes the state of the SRM advances and focuses in particular on the 3D printing application in biofabrication. We further discuss the issues of SRM development and finally propose some approaches for future 3D printing, which involves SRM.

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Design and Simulation of Ti6Al4V Cartilage Scaffold Based on Additive Manufacturing Technology

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1032.114 ◽

2021 ◽

Vol 1032 ◽

pp. 114-119

Author(s):

Han Jun Gao ◽

Hao Yuan ◽

Jian Qiang Xia ◽

Hong Wei Li ◽

Yi Du Zhang

Keyword(s):

Fatigue Life ◽

Additive Manufacturing ◽

Simulation Analysis ◽

Three Dimensional ◽

Simulation Models ◽

Biomechanical Properties ◽

Manufacturing Technology ◽

Cartilage Tissue ◽

Tissue Scaffold ◽

Additive Manufacturing Technology

The combination of additive manufacturing technology and cartilage tissue scaffold construction provides a new way for clinical treatment of cartilage injury. The high priority of the cartilage scaffold is closely related to the excellent biomechanical properties, fatigue life and medical performance. In this paper, three kinds of cartilage scaffolds are designed, and three-dimensional parametric geometric and numerical simulation models are established. Based on the simulation analysis and comparison of the three kinds of scaffolds, a scaffold model is finally determined. The porosity reaches 87.38%, the equivalent elastic modulus is 9.64Gpa, and it has permanent fatigue life in service environment. It concluded that the designed Ti6Al4V titanium alloy scaffold is suitable for cartilage transplantation.

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