Research on Femtosecond Laser Processing Experiment for Pressure-sensitive Structure of Launch Vehicle Rupture Diaphragm
Femtosecond laser processing experiments on the pressure-sensitive structure and performance of the aluminum rupture diaphragm were carried out,and the effects of laser power,scanning layer and notch width on the performance of the diaphragm were analyzed.It was found that femtosecond laser processing can achieve linear removal of the notch and the femtosecond laser machining has no significant effect on the properties of the diaphragm substrate,and there is a linear relationship between the rupture pressure and the residual thickness.Properly increasing the bottom width of the notch can effectively improve the stability of the performance of the diaphragm,and the result are conducive to improving the stability and reliability of booster conveying system for launch vehicles.
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