Evaluation of macro sized metal based microgrippers for handling microcomponents

Vidyaa, V.; Kanthababu, M.; Thilagar, S. Hosimin; Balasubramanian, R.

doi:10.1016/j.precisioneng.2018.07.010

Cited by 3 publications

(2 citation statements)

References 13 publications

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“…Currently the LIGA process is limited to fabrication of 2.5D microstructures, producing only single level pieces. However, the demand for more complex, multilevel metallic parts increases for applications like micro gears, miniature medical components or microelectromechanical systems (MEMS) [1,[8][9][10]. Therefore, there is a need for innovations in the LIGA process to enable multilevel part fabrication.…”

Section: Introductionmentioning

confidence: 99%

Digital LIGA: exploitation of droplet-on-demand inkjet printing to fabricate complex mechanical structures by electroforming

Sels¹,

Blum

Chandran

et al. 2023

J. Micromech. Microeng.

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A novel 3D fabrication technique called digital LIGA is proposed, integrating functional digital printing with 3D microfabrication via electrodeposition. This allows for the realization of complex multilevel metallic structures without problems associated with merging growth fronts. To achieve this, we developed a gold nanoparticle ink, compatible with a SU-8 photoresist, for printing the digitally-defined seed layers. Using this ink, selective printing of a conductive seed layer on a multi-level photoresist was used along with subsequent electrodeposition. Defect-free complex multilevel metallic 3D structures were successfully prepared via this method.

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Section: Introductionmentioning

confidence: 99%

Digital LIGA: exploitation of droplet-on-demand inkjet printing to fabricate complex mechanical structures by electroforming

Sels¹,

Blum

Chandran

et al. 2023

J. Micromech. Microeng.

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“…For microgrippers with micrometer dimensions, micromanufacturing processes, commonly used in MEMS, are used. Millimeter-scale grippers can be manufactured using CNC machining, wire electrical discharge machining (WEDM), additive manufacturing, using conventional 3D printers [28], and PolyJet printing processes [29], among others. It is worth mentioning that the processes used for the development of MEMS are costly in terms of prototype manufacturing, being significantly reduced when mass production is carried out.…”

Section: Introductionmentioning

confidence: 99%

Additive Manufactured Piezoelectric-Driven Miniature Gripper

2023

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In several cases, it is desirable to have prototypes of low-cost fabrication and adequate performance. In academic laboratories and industries, miniature and microgrippers can be very useful for observations and the analysis of small objects. Piezoelectrically actuated microgrippers, commonly fabricated with aluminum, and with micrometer stroke or displacement, have been considered as Microelectromechanical Systems (MEMS). Recently, additive manufacture using several polymers has also been used for the fabrication of miniature grippers. This work focuses on the design of a piezoelectric-driven miniature gripper, additive manufactured with Acrylonitrile Butadiene Styrene (PLA), which was modeled using a pseudo rigid body model (PRBM). It was also numerically and experimentally characterized with an acceptable level of approximation. The piezoelectric stack is composed of widely available buzzers. The aperture between the jaws allows it to hold objects with diameters lower than 500 mm, and weights lower than 1.4 g, such as the strands of some plants, salt grains, metal wires, etc. The novelty of this work is given by the miniature gripper’s simple design, as well as the low-cost of the materials and the fabrication process used. In addition, the initial aperture of the jaws can be adjusted, by adhering the metal tips in the required position.

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Characterization of a compact piezoelectric actuated microgripper based on double-stair bridge-type mechanism

et al. 2020

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Evaluation of macro sized metal based microgrippers for handling microcomponents

Cited by 3 publications

References 13 publications

Digital LIGA: exploitation of droplet-on-demand inkjet printing to fabricate complex mechanical structures by electroforming

Digital LIGA: exploitation of droplet-on-demand inkjet printing to fabricate complex mechanical structures by electroforming

Additive Manufactured Piezoelectric-Driven Miniature Gripper

Characterization of a compact piezoelectric actuated microgripper based on double-stair bridge-type mechanism

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