Experimental research and numerical simulation of the punch forming of aluminum foil based on a laser-induced cavitation bubble

Abstract

This study introduces a novel punch forming method based on a laser-induced cavitation bubble. The laser-induced cavitation bubble serves as a stamping force source and applies the shock wave and microjet generated by the bubble to facilitate the punch forming of aluminum foil. A numerical simulation method is implemented to simulate the growth and collapse processes of the laser-induced cavitation bubble. In addition, the explicit dynamics analysis system of ANSYS Workbench is used to simulate the punch forming of aluminum foil. A high-speed camera and a silicon piezoresistive high-frequency dynamic pressure sensor are utilized to compare and verify the simulation results. Finally, the conclusion is presented, which indicates that the shock wave, but not the microjet, plays an important role during aluminum foil punch forming.