19 October 2016 Delay time dependence of thermal effect of combined pulse laser machining
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Proceedings Volume 10153, Advanced Laser Manufacturing Technology; 1015301 (2016) https://doi.org/10.1117/12.2243746
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China
Abstract
The research focused on the effect of delay time in combined pulse laser machining on the material temperature field. Aiming at the parameter optimization of pulse laser machining aluminum alloy, the combined pulse laser model based on heat conduction equation was introduced. And the finite element analysis software, COMSOL Multiphysics, was also utilized in the research. Without considering the phase transition process of aluminum alloy, the results of the numerical simulation was shown in this paper. By the simulation study of aluminum alloy’s irradiation with combined pulse, the effect of the change in delay time of combined pulse on the temperature field of the aluminum alloy and simultaneously the quantized results under the specific laser spot conditions were obtained. Based on the results, several conclusions could be reached, the delay time could affect the rule of temperature changing with time. The reasonable delay time controlling would help improving the efficiency. In addition, when the condition of the laser pulse energy density is constant, the optimal delay time depends on pulse sequence.
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Boshi Yuan, Boshi Yuan, Guangyong Jin, Guangyong Jin, Yao Ma, Yao Ma, Wei Zhang, Wei Zhang, "Delay time dependence of thermal effect of combined pulse laser machining", Proc. SPIE 10153, Advanced Laser Manufacturing Technology, 1015301 (19 October 2016); doi: 10.1117/12.2243746; https://doi.org/10.1117/12.2243746
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