焊接
材料科学
融合
激光束焊接
熔焊
振荡(细胞信号)
熔池
传热
机械
铝
梁(结构)
几何学
合金
流量(数学)
工作(物理)
流体力学
冶金
机械工程
光学
物理
电弧焊
数学
工程类
钨极气体保护焊
哲学
生物
遗传学
语言学
作者
Xi Chen,Nan Jiang,Meng Jiang,Youwei Du,Shengchong Ma,Yuan Chen,Caiwang Tan,Zhenglong Lei,Sicong Zhao,Yanbin Chen
标识
DOI:10.1080/13621718.2022.2091343
摘要
In this work, the asymmetric weld fusion geometry in oscillating laser beam welding (OLBW) of aluminium alloy was reported and investigated using a numerical approach. A multi-physics heat transfer and fluid flow model of OLBW was developed and validated with the corresponding experimental results. The weld fusion geometry, temperature fields, and fluid flow behaviours for four commonly used oscillation modes, line, circle, eight, and infinity, were calculated to analyse the origin of the asymmetric weld fusion geometry. The results show the asymmetry of local heat input along beam travelling path and the fluid flow pattern in the molten pool are the main factors that result in the asymmetric weld fusion geometry in OLBW.
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