Investigation of a Magnetic Field-Assisted Digital-Light-Processing Stereolithography for Functionally Graded Materials

Safaee, Shahriar; Chen, Roland

doi:10.1016/j.promfg.2019.06.229

Cited by 23 publications

(15 citation statements)

References 17 publications

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“…Research efforts on 3D printing have been mainly concentrated on NdFeB due to its highest magnetic strength at room temperature. Soft magnetic materials like Fe, [ 32 ] Fe 2 O 3 , [ 1a ] and iron (II, III) oxide (Fe 3 O 4 ), [ 33 ] ferrite, and Fe‐Si alloys have high relative permeability and fast response to the applied field. They are widely used to fabricate magnetic‐aligned composites with anisotropic property enhancement, novel magnetic components in electronics, and guiding part of microrobots.…”

Section: Overview Of Magnetic Materials and 3d Printing Methodsmentioning

confidence: 99%

“…Magnetic fillers are aligned in the polymer matrix in the magnetic field, and the magnetic aligned composite is further built by different types of 3D printing processes. [ 1a,19a,21a,32,33,45 ] Because the functional fillers are oriented in a particular direction, the mechanical, electrical, thermal, and optical properties of the magnetic‐aligned composite exhibit anisotropic performances compared with the composite where the fillers are randomly distributed. [ 27 ] The anisotropic performance of functional composite can be modulated by controlling the aligned microarchitectures and adjusting the material composition.…”

Section: D Printing Of Magnetic Anisotropy For Property Enhancementmentioning

confidence: 99%

“…[63] By incorporating the magnetic field generated by either permanent magnet or computer-controlled solenoids (Figure 2a), the active magnetic materials are assembled into special microarchitectures with unique orientations in the photocurable polymer matrix. [1,32,33,41] Compared with MIP-SL, the DIW-based 3D printing process enables the fabrication of non-photocurable polymer-based composite. It is more convenient for DIW to deposit multiple types of materials at the same layer.…”

Section: Magnetic Field Assisted 3d Printingmentioning

confidence: 99%

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3D Printing of Functional Magnetic Materials: From Design to Applications

Zhang

Jiang

et al. 2021

Adv Funct Materials

116

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The research of functional magnetic materials has become a hot topic in the past few years due to their fast, long‐range, and precise response in diverse environments. Functional magnetic devices using different magnetic materials and structure designs have been developed and demonstrated good advantages to enable various applications. However, the required magnetic materials and structure designs for diverse functions also increase the fabrication difficulties while developing such devices. 3D printing technology presents a powerful and promising manufacturing approach to rapidly fabricate functional magnetic devices of complex geometries in multiple materials and scales. Here, various 3D printing strategies and the underlying mechanisms of functional magnetic materials for several primary applications are systematically reviewed, including, magnetic anisotropy for property enhancement, magnetic robots, magnetic components in electronics, and magneto‐thermal devices. Finally, the current challenges and future perspectives in engineering 3D printed functional magnetic devices are discussed.

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Section: Overview Of Magnetic Materials and 3d Printing Methodsmentioning

confidence: 99%

Section: D Printing Of Magnetic Anisotropy For Property Enhancementmentioning

confidence: 99%

Section: Magnetic Field Assisted 3d Printingmentioning

confidence: 99%

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3D Printing of Functional Magnetic Materials: From Design to Applications

Zhang

Jiang

et al. 2021

Adv Funct Materials

116

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“…Such an approach enables obtaining objects with high complexity such as a robot with soft and rigid areas [46,90,91] or a robot that has areas composed of a functional materials and areas that only provide the skeleton of the device. [92][93][94][95][96] The extrusion-based methods, that is, FDM and DIW, are the simplest to incorporate multi-material printing by the addition of a nozzle, or an array of nozzles, that extrude other materials. There is a variety of commercial FDM printers with two nozzles or more that can print few materials at once.…”

Section: Multi-materials Printingmentioning

confidence: 99%

“…One approach for SLA multimaterial printing, utilizes photocurable inks, with and without magnetic particles, to fabricate magnetically actuated devices, in which the magnetic particles are positioned in specific locations within the device. Safaee and Chen [94] customized a commercial SLA printer by adding several magnets to the printing setup, using printing compositions that contain magnetite particles dispersed in commercial SLA resin diluted by isobornyl acrylate. The location of the magnetic particles within the printed objects was controlled by the magnetic field during the printing process, resulting in functionally graded materials.…”

Section: Multi-materials Printingmentioning

confidence: 99%

3D Printing Materials for Soft Robotics

et al. 2020

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that uses the sensor-generated information to accurately regulate and enhance the dynamic performance.Soft robots (and more in general soft material-based systems) can be built with a plethora of materials and composites having very different mechanical properties, spanning from fluids (i.e., liquid metals, etc.) and hydrogels, to stiff solids (i.e., acrylonitrile butadiene styrene (ABS), epoxy resins, etc.). Also, in most cases, the constituent materials have many degrees of freedom and are highly non-linear, with relevant hysteresis and viscoelastic behavior. Hence, modeling soft systems is a very challenging task, and it still misses a comprehensive theoretical foundation. [19] As a result, the modeling phase is often overlooked in the design process, which in most cases relies on trial and error experimentation. The most commonly used materials in the design of soft robotics are silicone-based elastomers, such as polydimethylsiloxane (PDMS). They are used as the flexible material in pneumatic actuators, [4,5,14] in magnetic actuators, [11] and in electrically driven actuators as well, usually along with a conductive layer, commonly a carbon-based material. [15,16] Besides, other flexible polymers such as polyimides, [8] polyurethanes (PU), [12,20] or hydrogels [9] are used. So far, most devices are fabricated by casting or molding of liquid monomers, followed by hardening by UV light or heat.3D printing is an additive manufacturing technique, in which a required material is deposited, layer by layer, to form a 3D object, that is, it is a sequential 2D printing. The main advantages of 3D printing over subtractive manufacturing methods, are the simplicity of the process and the ability to form complex and hollow structures. There is a variety of 3D printing technologies that are commercially available, as described in a diversity of review reports. [21][22][23] Therefore, we will present here only a concise description of the printing technologies that are most relevant to soft robotics, all of them are based on ink compositions which are liquid during the printing processes.The most widely used methods are based on extrusion of materials, called fused deposition modeling (FDM) [24,25] and direct ink writing (DIW). [26,27] Both methods rely on a material that is extruded through a nozzle onto a substrate, and differ by the materials being used, the nozzle's nature, and the fixation mechanism. In FDM, a thermoplastic filament is extruded through a heated nozzle, followed by solidification upon cooling on the substrate, to form a solid 2D layer. This technique is simple and not expensive, but is limited to thermoplastic polymers and has relatively low resolution. In DIW, a viscous Soft robotics is a growing field of research, focusing on constructing motorless robots from highly compliant materials, some are similar to those found in living organisms. Soft robotics has a high potential for applications in various fields such as soft grippers, actuators, and biomedical devices. 3D printing of soft robotics present...

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Exploring the advantages and applications of nanocomposites produced via vat photopolymerization in additive manufacturing: A review

Colorado,

Gutierrez-Velasquez,

Gil

et al. 2023

Adv Compos Hybrid Mater

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Additive manufacturing (AM) also known as 3D printing (3DP) has become a popular technology with a wide range of applications, from which vat photopolymerization is a technique for producing nanocomposites with controlled mechanical, thermal, and electrical properties. This technology uses a UV light laser to cure a liquid resin into a solid object, layer by layer, allowing complex three-dimensional (3D) objects with intricate details of manufacturing and excellent finishing. Nanocomposites produced by vat photopolymerization have been used in aerospace, automotive, and medical industries, due to their superior mechanical strength and dimensional accuracy. In this article, we will discuss the advantages and other aspects of nanocomposites made with vat photopolymerization, exploring potential applications, and discuss the research by different areas, such as their AM technologies and materials properties. Graphical abstract This review deals with nanocomposites made by additive manufacturing (3D printing), presenting a systematic on vat photopolymerization technology, including the technologies, materials, and properties.

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Investigation of a Magnetic Field-Assisted Digital-Light-Processing Stereolithography for Functionally Graded Materials

Cited by 23 publications

References 17 publications

3D Printing of Functional Magnetic Materials: From Design to Applications

3D Printing of Functional Magnetic Materials: From Design to Applications

3D Printing Materials for Soft Robotics

Exploring the advantages and applications of nanocomposites produced via vat photopolymerization in additive manufacturing: A review

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