航空用6061铝合金板材性能验证试验研究

介绍了6061铝合金板材性能特点及其在飞机上应用情况,结合飞机使用要求,分析国产6061板材在飞机上应用存在问题,并对板材焊接、成形及耐压进行考核验证试验。结果表明,国产6061铝合金板材焊接接头连接效率可达90%以上,与传统防锈铝相当,拉伸强度高于进口板材;利用拉深工艺制备大规格薄壁管型件是可行的,研制出的工件尺寸完全符合图纸要求;耐压性能满足使用要求,但国产材料的耐压稳定性略低于进口材料。

Verification Experiment Research on Property of 6061 Aluminum Alloy Sheet for Aviation

The characteristics of 6061 aluminum alloy sheet and its application development in airplane were introduced,meanwhile considering using requirement of aircraft,the problem of application in airplane were analyzed.The welded property,formability and compression property were tested.The results show that joint efficiency of the domestic joint exceeds 90％,which is corresponding to traditional corrosion-resisting aluminum alloy,and tensile properties are higher than that of imported material;The producing of large size thin-walled tube is feasible by deep drawing technology under the conditions of reasonable controlling parameters;The dimension of the thin-walled tube can meet the requirement indicated at drawing completely and conform to the requirements of the drawings for the aircraft,whose pressure-resistant properties can satisfy the use requirement,but the stability is slightly lower than those imported material.