论文部分内容阅读
为了更好理解搅拌摩擦焊接(FSW)过程和合理选择焊接工艺参数,本文尝试将焊接工艺参数与响应参数相联系,利用FLUENT软件建立了FSW过程的热流分析模型,分析了搅拌头旋转速度和焊接速度发生变化时,峰值温度和纵向力的变化趋势。结果表明:随着搅拌头旋转速度的增大,峰值温度上升,纵向力减小,但旋转速度达到600r/min后,两者均不发生太大变化;随着焊接速度的增大,峰值温度变化没有明显规律,且其变动范围较小,但纵向力线性上升。研究结果可为铝合金FSW工艺参数的选择提供依据。
In order to better understand FSW process and choose welding process parameters reasonably, this paper attempts to relate the welding process parameters to the response parameters. The heat flow analysis model of FSW process is established by using FLUENT software. The rotating speed of the mixing head and welding Changes in speed, peak temperature and longitudinal force trends. The results show that the peak temperature rises and the longitudinal force decreases with the increase of rotating speed of the stirring head. However, after the rotating speed reached 600r / min, the two did not change much. With the increase of the welding speed, the peak temperature The change is not obvious, and its range of change is small, but the longitudinal force increases linearly. The results can provide the basis for the selection of aluminum alloy FSW process parameters.