CAJ | 학술논문

为进一步优化焊接工艺，提高铝/镁异种金属搅拌摩擦焊接头的性能，促进铝/镁异种金属结构在航空航天、轨道交通、汽车工业等领域的广泛应用，综述了近5年来国内外铝/镁异种金属搅拌摩擦焊接的最新研究成果，对焊接工艺参数、接头的力学性能、微观组织以及异种金属搅拌摩擦焊的新工艺进行了总结和分析。国内外大量研究结果表明，通过选择合适的工艺参数、改变搅拌针的偏移，可以获得抗拉强度较高、焊缝成形良好的铝/镁异种金属搅拌摩擦焊接头，焊缝中存在的金属间化合物是导致焊接接头性能不能满足工程应用的主要因素，但目前对于搅拌摩擦焊接过程中金属间化合物的产生、分布规律缺乏深入研究。
위진일보우화한접공예，제고려/미이충금속교반마찰한접두적성능，촉진려/미이충금속결구재항공항천、궤도교통、기차공업등영역적엄범응용，종술료근5년래국내외려/미이충금속교반마찰한접적최신연구성과，대한접공예삼수、접두적역학성능、미관조직이급이충금속교반마찰한적신공예진행료총결화분석。국내외대량연구결과표명，통과선택합괄적공예삼수、개변교반침적편이，가이획득항랍강도교고、한봉성형량호적려/미이충금속교반마찰한접두，한봉중존재적금속간화합물시도치한접접두성능불능만족공정응용적주요인소，단목전대우교반마찰한접과정중금속간화합물적산생、분포규률결핍심입연구。
ABSTRACT:To further optimized the welding process and improve the performance of Al/Mg dissimilar metals joints made by friction stir welding, promote the wide application of Al/Mg hybrid structure in aerospace, rail transit and car in-dustry. This paper reviewed the last 5 years research results about Al/Mg dissimilar metals joined by friction stir welding domestic and overseas. The welding process parameters, the mechanical properties of the joint, the microstructure and the novel friction stir welding process were summarized and analyzed. The amount of the research results show that selecting the appropriate process parameters and change the tool offset, sound dissimilar joints and well weld shape can be achieved. The intermetallic compound in the weld was the main factors that effect the joint application in the industry. However, the pro-duce of the IMC during welding process and its distribution law are lack of deep research.