Optics and Precision Engineering, Volume. 31, Issue 11, 1652(2023)
Low stress laser welding technology for corrugated diaphragm of pressure sensor
Fig. 1. Laser welding process for corrugated diaphragm of pressure sensor
Fig. 2. Photo of welding spot with laser power of 300 W, pulse frequency of 100 Hz, and pulse width of 1 ms
Fig. 3. Schematic diagram of weld residual stress detection point and collimator working angles
Fig. 4. Photos of weld spot overlap after orthogonal test according to Tab.4
Fig. 5. Sectional view of weld seam with welding power of 350 W, pulse frequency of 150 Hz, pulse width of 1.5 ms, and turntable speed of 4 200 (°)/min
Fig. 6. Tensile loading curve of welding strength tensile test with welding power of 350 W, pulse frequency of 150 Hz, pulse width of 1.5 ms and turntable speed of 4 200 (°)/min
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Xiaohui DU, Fanhong CHEN, Shuai LIU, Minjie ZHU, Jiahao XU. Low stress laser welding technology for corrugated diaphragm of pressure sensor[J]. Optics and Precision Engineering, 2023, 31(11): 1652
Category: Micro/Nano Technology and Fine Mechanics
Received: Nov. 24, 2022
Accepted: --
Published Online: Jul. 4, 2023
The Author Email: DU Xiaohui (dxh@instrnet.com)