Importance of Marangoni Convection in Laser Full-Penetration Welding

• 来源期刊: 中国物理快报（英文版）
• 学科: 物理学
• 年，卷（期）: 2002,（6）
• 页码范围: 788-790
• 页数: 3页
• 分类号: O4
• 语种: 英文

摘要

We study the effects of welding speed, Marangoni convection and natural convection on heat transfer and melt flow in a laser full-penetration welding using a three-dimensional modelling approach. The computed results demonstrate the importance of considering Marangoni convection. The predicted weld pool profile is favourably compared with experimental observation.