| LF21薄板搅拌摩擦焊工艺研究及微观组织分析 |
| |
| 引用本文： | 贺地求,李东辉. LF21薄板搅拌摩擦焊工艺研究及微观组织分析[J]. 铝加工, 2008, 0(2): 35-38 |
| |
| 作者姓名： | 贺地求 李东辉 |
| |
| 作者单位： | 中南大学机电工程学院,湖南,长沙,410083 |
| |
| 摘 要： | 采用搅拌摩擦焊接方法对厚度为1．5mm的LF21薄板铝合金板在进行焊接试验，首次提出搅拌头旋转速度为5000r／min时的焊接工艺，实验结果表明：在焊接速度为70～105mm／min，压入量适中，并采用喷气冷却，可以获得较好的焊接接头，抗拉强度达到最大值111．530MPa。焊缝中存在3个组织变化区，其中焊核区内是细小均匀的等轴晶，焊缝两侧热机影响区组织存在较大差异，热影响区组织发生了回复、再结晶和粗化。
|
| 关 键 词： | 搅拌摩擦焊 LF21铝合金 抗拉强度 显微组织 |
| 文章编号： | 1005-4898(2008)02-0035-04 |
| 修稿时间： | 2008-01-08 |
Process Research and Microstructure Analysis on Friction-Stir Welding for LF21 Sheet |
| |
| HE Di-qiu,LI Dong-hui. Process Research and Microstructure Analysis on Friction-Stir Welding for LF21 Sheet[J]. Aluminium Fabrication, 2008, 0(2): 35-38 |
| |
| Authors: | HE Di-qiu LI Dong-hui |
| |
| Affiliation: | HE Di-qiu, LI Dong-hui (College of Meehaniel and Eleetrieal Engineering, Central South University, Changsha 410083, China) |
| |
| Abstract: | Welding test was carried out on LF21 aluminum alloy sheet with thickness of 1.Smm using friction stir welding process. It is the first time to put forward a welding process with 5000r/min rotating speed. The results show that good junction can be obtained and the tensile strength can reach ll.530MPa when the welding speed is 70mm/min-105mm/ min and gas injection is used. |
| |
| Keywords: | friction stir welding LF21 aluminum alloy tensile strength： microstructure |
| 本文献已被 维普 万方数据 等数据库收录！ |
