搅拌摩擦焊接温度场研究  

Research on Temperature Field of Friction Stir Welding

作　　者：刘小文[1] 穆耀钊[1] 涂昊昀[1] 

机构地区：[1]西北工业大学材料学院,陕两西安710072

出　　处：《中国材料科技与设备》2006年第1期60-61,70,共3页Chinese Materials Science Technology & Equipment

基　　金：国家自然科学基金资助项目（50275123）

摘　　要：搅拌摩擦焊接（FSW）传热过程直接决定工件所经历的热循环，进而影响焊接接头的微观组织和力学性能。同时温度场的分析对于预测接头残余应力和变形，以及焊缝区硬度揶具有重要意义。本文在工艺研究的基础上。分析了FSW的产热过程；采用K（EU-2）型热电偶（测量温度范围0～1300℃）配合XMT-101型数显仪，对焊接过程中紫铜板的温度分布与变化进行了测量。初步获得了谊焊接过程的热循环规律。为进一步研究搅拌摩擦焊接温度场奠定了一定的基础。The heat transfer process determines the thermal cycles in the workpiece during the friction stir welding （FSW）, which affects the microstructure and mechanical properties. A good understanding of the heat transfer process in the workpiecc can be helpful in predicting the residual stress in the welding workpiece and the hardness in the weld zone. Based on the technical study, the heat generation process of FSW was analyzed in this paper. The temperature distribution and variation of pure copper plates in FSW was measured by the thermoelement of K（ EU- 2） and digital indicator of XMT- 101. Through the measurement and analysis, the regular pattern of heat cycle in FSW was basically known.

关 键 词：搅拌摩擦焊接 温度场 热电偶 

分 类 号：TG457.14[金属学及工艺—焊接] TG409