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- W2388652768 abstract "By using ANSYS,a numerical model was established based on non-linear thermal-mechanical coupling theory,the numerical simulation of the temperature field and displacement field were realized in sheet metal laser forming process.In double scanning of laser forming process,the influence of preheating temperature on temperature field and displacement field were analyzed for the first time.In the condition of non-preheating(temperature 20℃) and preheating(temperature 200℃,400℃),the change law of node temperature with time and the change law of node Z-direction displacement with time were analyzed in the process of single laser scanning and double laser scanning.By comparing and analyzing the results,it shows that the preheating temperature has no influence on total change law of temperature field and displacement field in forming process,the only difference is that temperature and displacement value of nodes are not the same at different preheating temperature.In a certain time range,with preheating temperature increasing,the surface node temperature of sheet metal gradually increases,and Z-direction displacement of nodes in free end also gradually increases.With sufficient cooling,compared preheating with non-preheating condition,node temperature tends to the same,a slight increase of node displacement in Z-direction occurs,that is,with the increasing of thickness direction bending deformation,the final deformation increases." @default.
- W2388652768 created "2016-06-24" @default.
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- W2388652768 date "2009-01-01" @default.
- W2388652768 modified "2023-09-27" @default.
- W2388652768 title "Analysis of Preheating Temperature Influence on Sheet Metal Laser Forming Process" @default.
- W2388652768 hasPublicationYear "2009" @default.
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