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5083铝合金真空激光焊缝成形的影响因素

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

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摘要

采用正交试验法,在不同参数下对厚度为30 mm的5083铝合金厚板进行了激光焊接工艺试验研究。结果表明,激光功率、焊接速度及环境压力对焊缝成形、气孔率均有不同程度的影响,其中环境压力对气孔率、熔深和深宽比的影响最大。当环境压强降至5 kPa时,熔深达到了常压下的2倍,气孔率仅为0.057%。研究结果为铝合金激光焊缝成形和气孔率的控制提供了参考。

Abstract

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 are 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.

Newport宣传-MKS新实验室计划
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中图分类号:TG456.7

DOI:10.3788/cjl201845.1102001

所属栏目:激光制造

基金项目:国家自然科学基金(51675336)

收稿日期:2018-05-02

修改稿日期:2018-05-18

网络出版日期:2018-06-14

作者单位    点击查看

王天鸽:上海交通大学材料科学与工程学院上海市激光制造与材料表面改性重点实验室, 上海 200240高新船舶与深海开发装备协同创新中心, 上海 200240
唐新华:上海交通大学材料科学与工程学院上海市激光制造与材料表面改性重点实验室, 上海 200240高新船舶与深海开发装备协同创新中心, 上海 200240
韩潇潇:上海交通大学材料科学与工程学院上海市激光制造与材料表面改性重点实验室, 上海 200240高新船舶与深海开发装备协同创新中心, 上海 200240
芦凤桂:上海交通大学材料科学与工程学院上海市激光制造与材料表面改性重点实验室, 上海 200240高新船舶与深海开发装备协同创新中心, 上海 200240
崔海超:上海交通大学材料科学与工程学院上海市激光制造与材料表面改性重点实验室, 上海 200240高新船舶与深海开发装备协同创新中心, 上海 200240

联系人作者:唐新华(xhtang@sjtu.edu.cn); 王天鸽(tiangewang@sjtu.edu.cn);

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引用该论文

Wang Tiange,Tang Xinhua,Han Xiaoxiao,Lu Fenggui,Cui Haichao. Factors Influencing Weld Formation for Laser Welding of 5083 Aluminum Alloy in Vacuum[J]. Chinese Journal of Lasers, 2018, 45(11): 1102001

王天鸽,唐新华,韩潇潇,芦凤桂,崔海超. 5083铝合金真空激光焊缝成形的影响因素[J]. 中国激光, 2018, 45(11): 1102001

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