3D printed magnetically-actuating micro-gripper operates in air and water

Shao, Guangbin; Ware, Henry Oliver T.; Huang, Jigang; Hai, Rihan; Li, Longqiu; Sun, Cheng

doi:10.1016/j.addma.2020.101834

Cited by 38 publications

(40 citation statements)

References 41 publications

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“…Moreover, sedimentation is another major concern if micron-sized fillers are used [ 256 ]. There are a number of different studies where both materials and processes for vat-based printing of composite inks are studied in detail, refer to [ 255 , 256 , 269 , 270 , 271 ].…”

Section: Towards Magneto-active 4d Printingmentioning

confidence: 99%

“…There are a number of different studies where both materials and processes for vat-based printing of composite inks are studied in detail, refer to [255,256,[269][270][271]. (a) Composite filament formation method (adapted from [253]), (b) composite powder formation method (adapted from [254]), (c) composite ink formation method (adapted from [256]), (d) examples of thermal and chemical properties of modified PLA-iron oxide composite filaments for FDM (adapted from [265]), (e) examples of thermal properties of modified PA12-iron oxide composite powder for SLS (adapted from [254]), and (f) rheological properties of acrylate iron oxide composite ink for DLP (adapted from [255]).…”

Section: Towards Magneto-active 4d Printingmentioning

confidence: 99%

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3D/4D Printing of Polymers: Fused Deposition Modelling (FDM), Selective Laser Sintering (SLS), and Stereolithography (SLA)

et al. 2021

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Additive manufacturing (AM) or 3D printing is a digital manufacturing process and offers virtually limitless opportunities to develop structures/objects by tailoring material composition, processing conditions, and geometry technically at every point in an object. In this review, we present three different early adopted, however, widely used, polymer-based 3D printing processes; fused deposition modelling (FDM), selective laser sintering (SLS), and stereolithography (SLA) to create polymeric parts. The main aim of this review is to offer a comparative overview by correlating polymer material-process-properties for three different 3D printing techniques. Moreover, the advanced material-process requirements towards 4D printing via these print methods taking an example of magneto-active polymers is covered. Overall, this review highlights different aspects of these printing methods and serves as a guide to select a suitable print material and 3D print technique for the targeted polymeric material-based applications and also discusses the implementation practices towards 4D printing of polymer-based systems with a current state-of-the-art approach.

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Section: Towards Magneto-active 4d Printingmentioning

confidence: 99%

Section: Towards Magneto-active 4d Printingmentioning

confidence: 99%

3D/4D Printing of Polymers: Fused Deposition Modelling (FDM), Selective Laser Sintering (SLS), and Stereolithography (SLA)

et al. 2021

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“…This technique can be divided into different categories based on the working principles. Fused deposition modeling (FDM) [102][103][104], micro continuous liquid interface production (μCLIP) [105], stereo lithography appearance (SLA) [106][107][108][109], and two-photon polymerization (2PP) [110] have been reported in the literature. 3D printing typically involves the use of polymers to fabricate CMMs.…”

Section: D Printingmentioning

confidence: 99%

Micro-scale Realization of Compliant Mechanisms: Manufacturing Processes and Constituent Materials—A Review

Wang

Zhang

et al. 2021

Chin. J. Mech. Eng.

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Compliant micromechanisms (CMMs) acquire mobility from the deflection of elastic members and have been proven to be robust by millions of silicon MEMS devices. However, the limited deflection of silicon impedes the realization of more sophisticated CMMs, which often require larger deflections. Recently, some novel manufacturing processes have emerged but are not well known by the community. In this paper, the realization of CMMs is reviewed, aiming to provide help to mechanical designers to quickly find the proper realization method for their CMM designs. To this end, the literature surveyed was classified and statistically analyzed, and representative processes were summarized individually to reflect the state of the art of CMM manufacturing. Furthermore, the features of each process were collected into tables to facilitate the reference of readers, and the guidelines for process selection were discussed. The review results indicate that, even though the silicon process remains dominant, great progress has been made in the development of polymer-related and composite-related processes, such as micromolding, SU-8 process, laser ablation, 3D printing, and the CNT frameworking. These processes result in constituent materials with a lower Young’s modulus and larger maximum allowable strain than silicon, and therefore allow larger deflection. The geometrical capabilities (e.g., aspect ratio) of the realization methods should also be considered, because different types of CMMs have different requirements. We conclude that the SU-8 process, 3D printing, and carbon nanotube frameworking will play more important roles in the future owing to their excellent comprehensive capabilities.

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“…This obstacle was scrutinized, and as a solution, rough and hydrophilic surfaces were proposed [ 11 , 12 , 13 ]. The deposition effect and the resulting changes on the surface that can be effective in the adhesion force analysis have been assessed in many studies [ 14 , 15 , 16 , 17 ]. Sabooni et al [ 18 ] analyzed the adhesion strength of steel substrates through the deposition of ZnMg–Zn bilayer coatings.…”

Section: Introductionmentioning

confidence: 99%

Influence of Thin Film Deposition on AFM Cantilever Tips in Adhesion and Young’s Modulus of MEMS Surfaces

et al. 2022

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Adhesion is a critical factor in microelectromechanical systems (MEMSs) and is influenced by many parameters. In important fields, such as microassembly, an improved understanding of adhesion can result in higher precision. This study examines the influence of deposition of gold and titanium onto the atomic force microscope (AFM) tips in adhesion forces and Young’s modulus, between a few MEMS substrates (silicon, gold, and silver) and the AFM tips. It was found that, except for gold substrate, an AFM tip coated with gold has the highest adhesion force of 42.67 nN for silicon substrates, whereas the titanium-coated AFM tip decreases the force for all the samples. This study suggests that such changes must be taken into account while studying the adhesion force. The final results indicate that utilizing gold substrate with titanium AFM tip led to the lowest adhesion force, which could be useful in adhesion force measurement during microassembly.

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3D printed magnetically-actuating micro-gripper operates in air and water

Cited by 38 publications

References 41 publications

3D/4D Printing of Polymers: Fused Deposition Modelling (FDM), Selective Laser Sintering (SLS), and Stereolithography (SLA)

3D/4D Printing of Polymers: Fused Deposition Modelling (FDM), Selective Laser Sintering (SLS), and Stereolithography (SLA)

Micro-scale Realization of Compliant Mechanisms: Manufacturing Processes and Constituent Materials—A Review

Influence of Thin Film Deposition on AFM Cantilever Tips in Adhesion and Young’s Modulus of MEMS Surfaces

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