作　　者： (李翔）; (李积元）;

机构地区： 青海大学机械工程学院,青海西宁810016

出　　处： 《大众科技》 2017年第7期67-69,73,共4页

摘　　要： 在搅拌摩擦焊接过程中,温度场对焊缝质量的优良具有重要的影响。文章通过对7050铝合金材料特性的分析与研究,材料的搅拌摩擦焊接工艺参数,并且通过建立FSW过程的有限元数学模型,利用ABAQUS有限元软件模拟了多组参数下焊接过程的温度场瞬态变化。结果表明不同的焊接工艺会对母材焊缝最高温度以及母材温度分布起着至关重要作用。当焊接速度较大时,焊缝周边母材发热较少,有利于保持母材的性能,基于此可以为焊接时工艺选取提供依据。 In the fi＇iction stir welding process,the temperature field has an important influence of of welding quality.Through the analysis and study the characteristics of the 7050 aluminum alloy material,material of friction stir welding process parameters,and by establishing a finite element mathematical model of FSW process,Using ABAQUS finite element software to simulate the multiple sets ofparameters（W,V）,get the transient temperature field of welding process.The result shows that different parameters play an important role in the highest oftemperature and the temperature distribution around the weld.When welding speed is larger, the parent metal heat is lesser, and this is helpful to maintain the performance of the parent metal,based on this,it can provide the basis for the process selection of welding.

关 键 词： 搅拌摩擦焊 有限元模拟 温度场