搅拌摩擦连接技术应用及其过程作用力研究

摘要

搅拌摩擦连接是一种先进的连接技术，应用前景十分广阔。在分析搅拌摩擦连接原理及特点的基础上，介绍了该技术的应用及其作用力研究现状，并以两种铝合金板材为对象，采用自制的八角环测力仪对搅拌摩擦连接过程中的三维作用力开展了实验研究。分析了搅拌摩擦连接作用力在连接过程中的变化特点，得到了搅拌头转速、进给速度对稳定阶段作用力的影响趋势。%Friction Stir Joining ( FSJ) is a type of advanced joining technology with broad application prospects. In this paper, after analyzing the principle and characteristics of FSJ, its application and the study on the processing forces are introduced. Then, a self-developed octagonal ring type dynamometer is used to investigate the 3-dimensional forces experimental y, where two types of Al al oy plates are used as workpiece. The force variation during the FSJ process is discussed, and the effects of the rotation and the feed rate of the stir tool are made clear in the stable stage.