Numerical simulation of temperature field during laser-induced welding

作者：Zhou Guangtao^*; Guo Guanglei; Fang Hongyuan

来源：Transactions of the China Welding Institution, 2014, 35(7): 22-26.

• 304 stainless steel
• Heat source modeling
• High-temperature thermocouple
• Laser induced
• Numerical simulation of temperature fields
• Quasi-steady state
• Temperature filed
• Thermal cycling curves

The concept of laser-induced welding was developed and the physical and heat source model for laser-induced welding were established in this paper. The quasi-steady state equations for moving spot heat source during laser-induced welding were built. The finite element analyses were conducted through MARC software for the temperature field during laser-induced welding of 304 stainless steel. The loading of the moving spot heat source in laser-induced welding was realized based on the equations by using secondarily developed subroutine. Meanwhile, the simulated values were compared to the experimental results by measuring the thermal cycling curve of temperature filed in laser-induced welding with high temperature thermocouples. The results show that the simulated values agreed well with the measured ones.

• 出版日期2014