摘要
为建立搅拌摩擦焊接工艺参数与响应参数的关系,利用热流分析模型系统研究了搅拌头旋转速度、焊接速度及接触系数发生变化时峰值温度和纵向力的变化趋势。分析结果表明:随着搅拌头旋转速度的增大,峰值温度上升,纵向力减小,但当旋转速度达到一定值后,两者均不发生明显变化;焊接速度的上升对峰值温度影响不大,但纵向力线性上升;接触系数的增大使峰值温度先增后降,而纵向力则是逐渐减小。
In order to establish the relationship between the welding parameters and response ones,a thermal and fluid analysis model was used to analysis the trend of peak temperature and longitudinal force with rotating speed ,the welding speed and contact factor changing. The results show that： with the rotating velocity increasing,the peak temperature rises and longitudinal force decreases; when the rotation speed reaching a certain value,neither of which produces any big change; welding speed rising has little effect on the peak temperature,but longitudinal force rises linearly with it; with contact coefficient increasing,the peak temperature increases at first and then drops, and longitudinal force is reduced gradually.
出处
《电焊机》
北大核心
2014年第1期26-30,共5页
Electric Welding Machine
基金
"十二五"国家科技支撑计划项目(2011BAD20B10)
关键词
搅拌摩擦焊
旋转速度
焊接速度
接触系数
峰值温度
纵向力
friction stir welding
rotating speed
welding speed
contact coefficient
peak temperature
longitudinal force
