7N01-T4和7N01-T5铝合金焊接位置的选择对搅拌摩擦
焊接头性能的影响
孟立春;赵明书;栾国红
【期刊名称】《航空制造技术》 【年(卷),期】2011(000)001
【摘要】搅拌摩擦焊是实现材料固相连接的焊接方法,焊接前进侧与后退侧存在组织厦性能上的差异.7N01铝合金为Al-Zn-Mg系铝合金,为轨道车辆常用结构材料,通过对7N01-T4与7N01-T5两种状态材料的研究发现,焊接位置不同将对接头材料的融合状态厦接头性能产生影响,将7N01-T5置于前进侧时,有利于焊缝材料的相互融合,并使接头冲击韧性显著提高.%Friction stir welding is the solid welding method, there are differences between advance side and retreating side in microstructure and mechanical properties. 7N01 aluminum alloy, which is belong to the Al-Zn-Mg series, is widely used in train structures manufacturing. The result shows that changing on welding position of 7N01-T4 and 7N01-T5 alloy can influence the material melting and mechanical properties, and a better result on material melting and impact toughness can be obtained when 7N01-T5 alloy is put in advance side. 【总页数】3页(132-133,138)
【关键词】搅拌摩擦焊;7N01铝合金;前进侧;后退侧 【作者】孟立春;赵明书;栾国红
【作者单位】南车青岛四方机车车辆股份有限公司;北京航空制造工程研究所;北
7N01-T4和7N01-T5铝合金焊接位置的选择对搅拌摩擦焊接头性能的影响
