Design and Contact Performance Analysis of 3D-Printed Alloy Metal Inertial Micro Switch
Jinghao Li, Zhipeng Li, Hejuan Chen
TL;DR
This paper proposes a 3D-printed alloy metal inertial micro switch design that improves reliability and reduces space.
Contribution
The novelty lies in using 3D printing to create an integrated inertial micro switch with verified performance under high acceleration.
Findings
Aluminum alloy electrodes deform plastically and achieve stable contact within 5 µs under 627 N impact.
Titanium alloy electrodes deform later than aluminum alloy electrodes under the same impact conditions.
3D printing is feasible for manufacturing high-precision, complex-structure micro switches.
Abstract
In order to reduce space occupation and improve reliability, the modularization and integration of micro switches and their components are a necessary path for development. In this paper, a scheme for an alloy metal inertial micro switch using 3D printing technology is proposed for an integrated design. The switch realizes the turn-on function by causing the deformable electrodes to undergo plastic deformation and make close contact with the outer sleeve under the columnar block extrusion. The influence of electrode structure parameters on electrode contact performance was studied by the orthogonal experimental method. And the best parameter combination scheme for the electrode was determined. The aluminum alloy switch and titanium alloy switch were processed by SLM (selective laser melting) technology. The plastic deformation of the 3D-printed titanium alloy electrode occurred later…
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Taxonomy
TopicsAdvanced MEMS and NEMS Technologies · Advanced Surface Polishing Techniques · Advanced Machining and Optimization Techniques