摘要
利用测力传感器对6082-T6铝合金回填式搅拌摩擦点焊过程中的Z向负载进行了测量,研究了搅拌摩擦点焊过程中不同焊接工艺参数(轴肩转速、搅拌针转速、扎入/回抽时间和扎入深度等)对负载的影响.结果表明,铝合金搅拌摩擦点焊试验中负载曲线可分为压紧环下压区、轴肩扎入区、搅拌针回填区和搅拌头卸载区四个部分.试验负载随轴肩(或搅拌针)转速的增大出现波动下降的趋势;焊接负载随轴肩扎入/回抽时间的增加而逐渐降低;焊接负载也随轴肩扎入深度的变化而变化,但没有发现特定影响规律.
The Z-axis loads were measured in the process of 6082-T6 aluminum alloy re-fill friction stir spot welding and the influence of different welding parameters （ shaft shoulder rotate speed, stirring pin rotate speed, tying into/withdrawing time and tying into depth, etc. ）on loads was studied. The results show that curve of loads in the process of aluminum alloy re-fill friction stir spot welding can be divided into 4 zones： clamp ring pushing process, shaft shoulder tying into process, stirring pin refill process and stirring tool unloading process. Loads in the test reduce fluctuation as the rotating speed of shaft shoulder or stirring pin increases. Loads in the test reduce gradually as the shoulder tying into/withdrawing time increases. Loads in the test fluctuate without showing a trend as the shoulder tying into depth increases.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2014年第9期1321-1323,1328,共4页
Journal of Northeastern University(Natural Science)
基金
国家科技重大专项资助项目(2012ZX04008011)
中央高校基本科研业务费专项资金资助项目(N130603001)
关键词
回填式搅拌摩擦点焊
铝合金
转速
负载
扎入深度
re-fill friction stir spot welding
aluminum alloy
rotate speed
load
tying into depth
