Optimization of a Fuze MEMS Setback Arming Device Based on the EDM Process

Qin, Yu; Chen, Liang Yu; Hao, Yongping

doi:10.1109/access.2020.2992346

Cited by 4 publications

(2 citation statements)

References 29 publications

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“…To solve the problems in the test, 100 principle prototypes were processed by the EDM process proposed in reference [ 26 ] instead of the UV-LIGA process, using 50 of each for process comparison, and the results are shown in Table 6 . It can be seen from the table that the EDM process has the advantages of low cost, high precision, and high speed.…”

Section: Test Verification Of the Arming Devicementioning

confidence: 99%

Simulation and Test of a MEMS Arming Device for a Fuze

et al. 2022

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To solve the structural strength problem of a MEMS arming device for a fuze, a kind of arming device applied to a certain type of 40 mm grenade is designed. This paper introduces the working principle of the arming device; simulates the shear pin, rotary pin and locking mechanism in the device; designs a variety of different test tools for test verification; and further increases the explosion reliability and arming safety tests. The results show that the arming device improves the structural strength and can meet the action requirements of a certain type of 40 mm grenade for safety release, as well as the application requirements of explosion reliability and arming safety.

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Section: Test Verification Of the Arming Devicementioning

confidence: 99%

Simulation and Test of a MEMS Arming Device for a Fuze

et al. 2022

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“…Kawa et al fabricated a micro spring with characteristic dimensions of 200-400 µm using the threedimensional print method [7]. To reduce fabrication errors in the UV-LIGA process, Qin et al fabricated a plane micro spring using low-speed wire electrical discharge machining [8,9]. Chen et al fabricated T2 copper planar micro springs using precision etching [10].…”

Section: Introductionmentioning

confidence: 99%

Effects of rolled fibrous microstructure on fatigue properties of extruded Cu-5Al planar micro springs

Li,

Wang,

et al. 2023

J. Micromech. Microeng.

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Planar micro spring is an important elastic component in microelectromechanical system devices, and one of its main failures is fatigue. In this work, a new method to improve the cycles of a planar micro spring by introducing pre-rolled fibrous microstructure was proposed. Cu-5Al alloy billets with a fibrous microstructure rolled at room temperature with a reduction ratio of 70% were obtained. Three types of planar micro springs with fibrous microstructure were prepared through extrusion by varying the angle between the fibrous microstructure direction and the extrusion direction. Fatigue tests were conducted using a customized micro-fatigue test system. The best fatigue performance was obtained by preparing the micro springs with the fibrous microstructure direction perpendicular to the extrusion direction, while the worst fatigue performance was obtained by preparing the planar micro springs with the fibrous microstructure direction parallel to the extrusion direction. The fibrous microstructure direction affected the local strain in the micro springs. The fibrous microstructure slightly affected the location of the crack initiation region but significantly affected the area of crack initiation and steady-state expansion region of the micro spring. The fatigue life cycle of extruded Cu-5Al alloy planar micro spring with the pre-rolled fibrous microstructure improved by 58% more than that of extruded Cu-7Al alloy planar micro spring without the pre-rolled fibrous microstructure. Micro spring fatigue life cycle decreased with increasing strain amplitude. This work provides a new approach for preparing planar micro springs with high fatigue performance.

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An overview of MEMS S&A device and its application in the micro-detonated system

KAN¹,

Chu²,

Qü

et al. 2022

Int. J. Mod. Phys. B

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The integration of fuzes and initiators has been promoted by the development requirements of the miniaturized and intelligent ammunition, and the micro-detonated system integrated with S&A device is the key development direction. Initiators are considered the first component of the weapon system, and the safety and reliability of the initiators directly affect the safety and reliability of the weapon system. With the development of micro-electromechanical system (MEMS) initiators and the integration of fuze, in order to further improve the safety of the weapon system in the miniaturized and intelligent ammunition system, it is necessary to integrate the MEMS S&A device with the initiators, which is an important technical feature, to form a MEMS initiator with functional integration, high safety and reliability. MEMS S&A device is the key technology of the MEMS initiators’ devices with safety-isolation function. This paper summarizes the development of MEMS S&A devices in micro-fuzes and the micro-detonated systems in recent years. Combined with comparative analysis, it analyzes and summarizes the driving principles, application platforms, process technologies, structural material characteristics and other aspects, and proposes a suitable structure for the MEMS initiators integrated with S&A devices, which provides a reference for the research on the design of MEMS initiators with safety-isolation function.

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Optimization of a Fuze MEMS Setback Arming Device Based on the EDM Process

Cited by 4 publications

References 29 publications

Simulation and Test of a MEMS Arming Device for a Fuze

Simulation and Test of a MEMS Arming Device for a Fuze

Effects of rolled fibrous microstructure on fatigue properties of extruded Cu-5Al planar micro springs

An overview of MEMS S&A device and its application in the micro-detonated system

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