| TC4钛合金激光焊中工艺参数对气孔生成量的影响 |
| |
| 引用本文： | 李海刚,原璋,程昊,蒲海涛,常保华,都东,单际国.TC4钛合金激光焊中工艺参数对气孔生成量的影响[J].宇航材料工艺,2017,47(6):39-42. |
| |
| 作者姓名： | 李海刚 原璋 程昊 蒲海涛 常保华 都东 单际国 |
| |
| 作者单位： | 航天材料及工艺研究所, 北京 100076,清华大学机械工程系先进成形制造教育部重点实验室, 北京 100084,航天材料及工艺研究所, 北京 100076,清华大学机械工程系先进成形制造教育部重点实验室, 北京 100084,清华大学机械工程系先进成形制造教育部重点实验室, 北京 100084,清华大学机械工程系先进成形制造教育部重点实验室, 北京 100084,清华大学机械工程系先进成形制造教育部重点实验室, 北京 100084 |
| |
| 基金项目： | 国家自然科学基金重点支持项目（U1537205） |
| |
| 摘 要： | 文摘研究了TC4钛合金激光焊接在平焊、横焊两种位置下工艺参数对气孔生成量的影响。结果表明:平焊时,气孔生成量随激光功率、离焦量的增大先减小后增大,随焊接速度的增大先增大后减小;横焊时,气孔生成量随激光功率的增大而增大,随焊接速度的增大而减小,随离焦量的增大先减小后增大。利用正交试验方法得到的优化工艺参数进行焊接,气孔生成量大幅减少,在两种位置下均可得到内部质量良好的焊缝。
|
| 关 键 词： | TC4钛合金 激光焊接 平焊 横焊 气孔 |
| 收稿时间： | 2017/3/17 0:00:00 |
| 修稿时间： | 2017/6/13 0:00:00 |
Influence of Welding Parameters on Porosity in Welding of TC4 Titanium Alloy in Two Positions |
| |
| LI Haigang,YUAN Zhang,CHENG Hao,PU Haitao,CHANG Baohu,DU Dong and SHAN Jiguo.Influence of Welding Parameters on Porosity in Welding of TC4 Titanium Alloy in Two Positions[J].Aerospace Materials & Technology,2017,47(6):39-42. |
| |
| Authors: | LI Haigang YUAN Zhang CHENG Hao PU Haitao CHANG Baohu DU Dong and SHAN Jiguo |
| |
| Institution: | Aerospace Research Institute of Materials & Processing Technology, Beijing 100076,Department of Mechanical Engineering, Tsinghua University and Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Ministry of Education of P. R. China, Beijing 100084,Aerospace Research Institute of Materials & Processing Technology, Beijing 100076,Department of Mechanical Engineering, Tsinghua University and Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Ministry of Education of P. R. China, Beijing 100084,Department of Mechanical Engineering, Tsinghua University and Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Ministry of Education of P. R. China, Beijing 100084,Department of Mechanical Engineering, Tsinghua University and Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Ministry of Education of P. R. China, Beijing 100084 and Department of Mechanical Engineering, Tsinghua University and Key Laboratory for Advanced Manufacturing by Materials Processing Technology, Ministry of Education of P. R. China, Beijing 100084 |
| |
| Abstract: | The influence of welding parameters on porosity in the welding of TC4 titanium alloy in flat and horizontal positions was investigated. Results showed that parameters had different influences on porosity in different positions. In flat position, the amount of porosity decreased first and then increased with the increase of laser power and defocus, it increased first and then decreased with the increase of welding speed; in horizontal position, the amount of porosity decreased with the decrease of laser power and the increase of welding speed, and it decreased first and then increased with the increase of defocus. By optimization of parameters with the range analysis method, the amount of porosity is reduced significantly in weld beads, and welds with good inner quality could be produced under both flat and horizontal welding positions. |
| |
| Keywords: | TC4 Titanium alloy Laser welding Flat position Horizontal position Porosity |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《宇航材料工艺》浏览原始摘要信息 |
| 点击此处可从《宇航材料工艺》下载免费的PDF全文 |
|
