Factors Influencing Weld Formation for Laser Welding of 5083 Aluminum Alloy in Vacuum

被引：2
|
作者：
Wang Tiange [1 ,2 ]
Tang Xinhua [1 ,2 ]
Han Xiaoxiao [1 ,2 ]
Lu Fenggui [1 ,2 ]
Cui Haichao [1 ,2 ]
机构：
[1] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Mat Laser Proc & Modificat, Shanghai 200240, Peoples R China
[2] Collaborat Innovat Ctr Adv Ship & Deep Sea Explor, Shanghai 200240, Peoples R China
来源：
CHINESE JOURNAL OF LASERS-ZHONGGUO JIGUANG | 2018年 / 45卷 / 11期
关键词：
laser technique; aluminum alloy; ambient pressure; orthogonal tests; weld formation; laser welding in vacuum;
D O I：
10.3788/CJL201815.1102001
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An orthogonal experiment is designed to investigate the laser welding of a 30 mm thick 5083 aluminum alloy plate under different process parameters. The results show that, the laser power, the welding speed and the ambient pressure have different effects on weld formation and porosity, in which the effects of the ambient pressure on the porosity, the penetration depth and the depth-width ratio arc the strongest. When the ambient pressure is decreased to 5 kPa, the penetration depth is twice that at normal pressure and the porosity is only 0.057%. This research result provides a reference for the control of weld formation and porosity in the laser welding of aluminum alloys.
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页数：9
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