Design and testing of a microgripper with SMA actuator for manipulation of micro components

Mehrabi, Hossein; Aminzahed, Iman

doi:10.1007/s00542-019-04523-y

Cited by 16 publications

(10 citation statements)

References 17 publications

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“…(4) The microgripper must not contaminate components or the environment during operation [90]. The microgripper is combined with the positioner for positioning the device head during the operation [91]. The dependence on external systems for device positioning limits the efficiency of the device.…”

Section: Microgrippersmentioning

confidence: 99%

A Critical Review on Nickel–Titanium Thin-Film Shape Memory Alloy Fabricated by Magnetron Sputtering and Influence of Process Parameters

Marupalli

Behera

Aich

2021

Trans Indian Inst Met

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This paper discussed the fundamentals of NiTi shape memory alloy and its applications in advanced scientific fields. Currently, the world is focusing on miniaturized systems for various industrial and functional applications. The thin-film shape memory NiTi alloy plays a crucial role in MEMS/NEMS industry in fabrication of microdevices. In this article, the NiTi phase diagram along with the shape memory effect and superelasticity has also been explained. Among several types of fabrication techniques for NiTi thin films, magnetron sputtering, which yields a better homogeneous film, has been discussed. Both the operational parameters (target type, Ar pressure, applied power, target-substrate distance, substrate rotation, substrate temperature, plasma stability, deposition rate) and the material's parameters (deposition pattern, orientation of adatom, film thickness, film stress, crystal structure, grain size, intermetallic formation, oxide formation, phase transformation) have been correlated in this article. The utilization of shape memory behavior in various industrial applications has been discussed here, also the advantages and limitations of SMA have been briefly discussed.

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Section: Microgrippersmentioning

confidence: 99%

A Critical Review on Nickel–Titanium Thin-Film Shape Memory Alloy Fabricated by Magnetron Sputtering and Influence of Process Parameters

Marupalli

Behera

Aich

2021

Trans Indian Inst Met

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“…Therefore, Joule heating activation of NiTi SMA wires is convenient and simple. Lu et al [14] developed a parallel gripper driven by an SMA actuator with a wire diameter of 0.4 mm, a clamping target diameter range of 60 to 100 mm, and a clamping force of 4 to 7.5 N. Mehrabi et al [15] designed a micro-gripper with a size of 12 mm × 10 mm, and the maximum deflection of the jaws was 200 μm. Lee et al [16] developed a non-embedded three-finger soft gripper with a bending angle of 400 o , a maximum clamping force of 30 N, an SMA wire length of 300 mm and a diameter of 203 μm.…”

Section: Introductionmentioning

confidence: 99%

A Machine Learning Empowered Shape Memory Alloy Gripper With Displacement-Force-Stiffness Self-Sensing

Pei

Wang

et al. 2023

IEEE Trans. Ind. Electron.

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“…The grippers actuated by SMA wire have been widely studied, including embedded, external and so on (Wang et al, 2016;Mehrabi and Aminzahed, 2020). To enlarge a relatively small actuation stroke or achieve a large actuation stroke, various amplification mechanisms, such as series and winding arrangements (Leng et al, 2016;Lu et al, 2019;Zhang et al, 2022aZhang et al, , 2022b, are, therefore, developed.…”

Section: Introductionmentioning

confidence: 99%

A novel dual-stage shape memory alloy actuated gripper

Liu

Tong

et al. 2022

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Purpose The paper aims to propose a novel dual-stage shape memory alloy (SMA) actuated gripper (DAG), of which the grasp performance is improved through primary and secondary actuation. Design/methodology/approach This paper presents a method of integrating the design of dual-stage actuation modules based on the SMA bias actuation principle to enhance the grasping shape adaptability and force modulation of a DAG. The actuation angle range and grasping performance of the DAG are investigated by thermomechanical analysis and the finite element method based numerical simulation. Findings The results of present experiments and simulations indicate that the actuation angle scope of the DAG is about 20° under no load, which enables the grasping space occupied by an object in the DAG from 60 mm to 120 mm. The grasping force adjusted by changing the input power of the primary main actuation module and secondary fine-tuning actuation module can reach a maximum of 2 N, which is capable of grasping objects of various sizes, weights, shapes, etc. Originality/value The contribution of this paper is to design a DAG based on SMA, and establish the solution methods for the primary main actuation module and secondary fine-tuning actuation module, respectively. It lays a foundation for the research of lightweight and intelligent robotic grippers.

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Design and testing of a microgripper with SMA actuator for manipulation of micro components

Cited by 16 publications

References 17 publications

A Critical Review on Nickel–Titanium Thin-Film Shape Memory Alloy Fabricated by Magnetron Sputtering and Influence of Process Parameters

A Critical Review on Nickel–Titanium Thin-Film Shape Memory Alloy Fabricated by Magnetron Sputtering and Influence of Process Parameters

A Machine Learning Empowered Shape Memory Alloy Gripper With Displacement-Force-Stiffness Self-Sensing

A novel dual-stage shape memory alloy actuated gripper

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