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在角接过程中,为了使模拟的热源模型与实际热源相符,需对模拟角接热源模型进行校核。本文以普通碳素结构钢为例,基于改进双椭球热源模型对其角接接头进行数值模拟,采用合适热源数学模型参数确定焊接熔池的精确形貌,并获得改进双椭球热源模型的敏感性参数在MAG焊条件下熔宽、熔深的线性回归结果。研究结果表明:普通碳素结构钢角接接头可根据金相熔池形貌的熔宽、熔深相应地校核焊接热源模型的相关参数,并可为更准确的模拟结果提供参考。
In the cornering process, in order to simulate the heat source model with the actual heat source, the analogue heat source model needs to be verified. In this paper, an ordinary carbon structural steel is taken as an example to simulate its welded joints based on a modified double ellipsoidal heat source model. The exact shape of welding pool is determined by the mathematical model parameters of a suitable heat source, and the sensitivity of the improved dual ellipsoidal heat source model is improved The linear regression results of the melting and penetration of the sexual parameters under MAG welding conditions. The results show that the common carbon structural steel angle joint can check the relevant parameters of welding heat source model according to the melting width and penetration depth of the metallographic weld pool, and provide a reference for more accurate simulation results.