材料科学
焊接
残余应力
激光器
铝
合金
激光束焊接
接头(建筑物)
冶金
复合材料
摩擦学
光学
结构工程
物理
工程类
作者
Guodong Zhu,Shouren Wang,Mingyuan Zhang,Xuefeng Yang,Wentao Li,Gaoqi Wang
出处
期刊:Applied Optics
[The Optical Society]
日期:2020-11-30
卷期号:59 (34): 10967-10967
被引量:17
摘要
This paper presents a new method of postweld treatment. The 5154 aluminum alloy was cleaned by Nd:YAG laser after welding. The surface morphology, energy spectrum, friction and wear properties, hardness, and residual stress of the welded joint at different cleaning speeds were studied. The results show that an Nd:YAG laser can effectively remove the welding slag and eliminate the pores in the weld under a certain cleaning speed. When the cleaning speed is in the range of 5.2–20.7 mm/s, laser cleaning can improve the heat-affected zone’s tribological characteristics. Laser cleaning can eliminate the residual stress of the welded joint and improve the welding joint’s strength, which provides a reference for laser cleaning instead of traditional heat treatment.
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