Application of Friction Stir Welding on the Large Aircraft Floor Structure
- 作者：Wang YisongTong JianhuaLi Congqing
- 会议时间：2012-10-18
- 关键词：Friction stir welding (FSW) ; Floor ; Welding shrinkage mass ; Constant force control ; Laser tracking ; Clamp design
- 作者单位：China FSW Center, BAMTRI
- 母体文献：第二届搅拌摩擦焊国际会议论文集
- 会议名称：第二届搅拌摩擦焊国际会议
- 会议地点：北京
- 主办单位：中国搅拌摩擦焊中心
- 语种：chi
摘要
As an innovative advanced joining technology for lightweight alloy,Friction Stir Welding Technology attracts more and more concerns and studies from manufacturing industries.As the leading filed to adopt the most advanced technology,the aeronautic industry has focused on this technology for long time,and some optimistic outcomes have been obtained.In this paper,based on the typical FSW research and applications outcomes from international aeronautic industries,the floor structure on a large aircraft by friction stir welding technology was developed.The material of the large floor structure is high-strength aluminum alloy 7050-T7451,and the length of the weld is 19m.It is not easy to weld the large-sizes and thin-walled structure by friction stir welding at the beginning; so many fundamental researches on mechanical test,shrinkage mass and so on were carried out.And laser tracking technology and constant force control technology during friction stir welding process were applied on this structure.The results indicate that the friction stir welding can be used on large-thin wall aircraft floor structure,which meet all the requirements of the aircraft floor structure design.