6005A圆管焊合线的消除方法研究  

Study on the way of Eliminating Welding Line of 6005A Tube

作　　者：卢刚[1] 王艳丽[1] 李振华[1] 黄善免 莫红楼 何建贤[1] LU Gang;WANG Yan-li;LI Zhen-hua;HUANG Shan-mian;MO Hong-lou;HE Jian-xian(Guangxi Alnan Aluminium Fabrication Co.,Ltd.,Guangxi Nanning 530031,China)

机构地区：[1]广西南南铝加工有限公司,广西南宁530031

出　　处：《热处理技术与装备》2021年第4期16-18,共3页Heat Treatment Technology and Equipment

摘　　要：采用分流组合模和正向挤压方法制备6005A圆管,打磨后在焊缝位置出现明显的焊合线。分析认为焊缝位置铝流变形剧烈,产生严重再结晶而导致焊合线。本文通过调整Mn+Cr含量抑制再结晶和优化模具设计改善焊合质量,避免打磨后出现焊合线。The 6005A tube is prepared by the plane diffluent compound die and the way of forward extrusion,the obvious welding lines appear on the joints after polished.The analysis shows that the aluminum flow at the weld position deforms violently,resulting in severe recrystallization.By adjusting the content of Mn+Cr to inhibit recrystallization and optimizing the die design,the welding quality is improved,and the welding lines disappeare after polished.

关 键 词：挤压6005A圆管 焊合线 化学成分 模具结构 

分 类 号：TG146.2[一般工业技术—材料科学与工程]