Research on the Thermodynamic Analysis of Ultrashort Laser Pulses Acting on the Silver

摘要

This paper discusses the application of laser processing technology in machining industry so as to further improve the progress and quality of machining. A two-temperature model of silver is established based on the COMSOL simulation software. The effects of spot radius and laser energy on the temperatures of electron and lattice are numerically investigated via the control of variables, and thus the ablation morphology is predicted. Because of its non-contact andreal-time characteristics, ultrashort laser has been used more and more in the processing and testing of silver. In this paper, the electronic and lattice temperatures of silver with different laser pulse widths are calculated by using double temperature model with the help of finite element analysis software. The results show that the pulse width of laser will affect the material., the peak value of electron temperature and the coupling time of electron lattice.